mndStb.c 108.8 KB
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/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

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#define _DEFAULT_SOURCE
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#include "mndStb.h"
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#include "mndDb.h"
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#include "mndDnode.h"
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#include "mndIndex.h"
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#include "mndInfoSchema.h"
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#include "mndMnode.h"
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#include "mndPerfSchema.h"
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#include "mndPrivilege.h"
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#include "mndScheduler.h"
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#include "mndShow.h"
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#include "mndSma.h"
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#include "mndTopic.h"
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#include "mndTrans.h"
#include "mndUser.h"
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#include "mndVgroup.h"
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#include "tname.h"
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#define STB_VER_NUMBER   1
#define STB_RESERVE_SIZE 64
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static SSdbRow *mndStbActionDecode(SSdbRaw *pRaw);
static int32_t  mndStbActionInsert(SSdb *pSdb, SStbObj *pStb);
static int32_t  mndStbActionDelete(SSdb *pSdb, SStbObj *pStb);
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static int32_t  mndStbActionUpdate(SSdb *pSdb, SStbObj *pOld, SStbObj *pNew);
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static int32_t  mndProcessTtlTimer(SRpcMsg *pReq);
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static int32_t  mndProcessCreateStbReq(SRpcMsg *pReq);
static int32_t  mndProcessAlterStbReq(SRpcMsg *pReq);
static int32_t  mndProcessDropStbReq(SRpcMsg *pReq);
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static int32_t  mndProcessDropTtltbReq(SRpcMsg *pReq);
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static int32_t  mndProcessTableMetaReq(SRpcMsg *pReq);
static int32_t  mndRetrieveStb(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
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static int32_t  mndRetrieveStbCol(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
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static void     mndCancelGetNextStb(SMnode *pMnode, void *pIter);
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static int32_t  mndProcessTableCfgReq(SRpcMsg *pReq);
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static int32_t  mndAlterStbImp(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb, bool needRsp,
                               void *alterOriData, int32_t alterOriDataLen);
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static int32_t  mndAlterStbAndUpdateTagIdxImp(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb, bool needRsp,
                                              void *alterOriData, int32_t alterOriDataLen, const SMAlterStbReq *pAlter);
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static int32_t mndProcessCreateIndexReq(SRpcMsg *pReq);
static int32_t mndProcessDropIndexReq(SRpcMsg *pReq);

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int32_t mndInitStb(SMnode *pMnode) {
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  SSdbTable table = {
      .sdbType = SDB_STB,
      .keyType = SDB_KEY_BINARY,
      .encodeFp = (SdbEncodeFp)mndStbActionEncode,
      .decodeFp = (SdbDecodeFp)mndStbActionDecode,
      .insertFp = (SdbInsertFp)mndStbActionInsert,
      .updateFp = (SdbUpdateFp)mndStbActionUpdate,
      .deleteFp = (SdbDeleteFp)mndStbActionDelete,
  };
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  mndSetMsgHandle(pMnode, TDMT_MND_CREATE_STB, mndProcessCreateStbReq);
  mndSetMsgHandle(pMnode, TDMT_MND_ALTER_STB, mndProcessAlterStbReq);
  mndSetMsgHandle(pMnode, TDMT_MND_DROP_STB, mndProcessDropStbReq);
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  mndSetMsgHandle(pMnode, TDMT_VND_CREATE_STB_RSP, mndTransProcessRsp);
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  mndSetMsgHandle(pMnode, TDMT_VND_DROP_TTL_TABLE_RSP, mndProcessDropTtltbReq);
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  mndSetMsgHandle(pMnode, TDMT_VND_ALTER_STB_RSP, mndTransProcessRsp);
  mndSetMsgHandle(pMnode, TDMT_VND_DROP_STB_RSP, mndTransProcessRsp);
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  mndSetMsgHandle(pMnode, TDMT_MND_TABLE_META, mndProcessTableMetaReq);
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  mndSetMsgHandle(pMnode, TDMT_MND_TTL_TIMER, mndProcessTtlTimer);
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  mndSetMsgHandle(pMnode, TDMT_MND_TABLE_CFG, mndProcessTableCfgReq);
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  //  mndSetMsgHandle(pMnode, TDMT_MND_SYSTABLE_RETRIEVE, mndProcessRetrieveStbReq);
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  // mndSetMsgHandle(pMnode, TDMT_MND_CREATE_INDEX, mndProcessCreateIndexReq);
  // mndSetMsgHandle(pMnode, TDMT_MND_DROP_INDEX, mndProcessDropIndexReq);
  // mndSetMsgHandle(pMnode, TDMT_VND_CREATE_INDEX_RSP, mndTransProcessRsp);
  // mndSetMsgHandle(pMnode, TDMT_VND_DROP_INDEX_RSP, mndTransProcessRsp);
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  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_STB, mndRetrieveStb);
  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_STB, mndCancelGetNextStb);
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  mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_COL, mndRetrieveStbCol);
  mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_COL, mndCancelGetNextStb);

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  return sdbSetTable(pMnode->pSdb, table);
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}

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void mndCleanupStb(SMnode *pMnode) {}
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SSdbRaw *mndStbActionEncode(SStbObj *pStb) {
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  terrno = TSDB_CODE_OUT_OF_MEMORY;

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  int32_t size = sizeof(SStbObj) + (pStb->numOfColumns + pStb->numOfTags) * sizeof(SSchema) + pStb->commentLen +
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                 pStb->ast1Len + pStb->ast2Len + STB_RESERVE_SIZE + taosArrayGetSize(pStb->pFuncs) * TSDB_FUNC_NAME_LEN;
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  SSdbRaw *pRaw = sdbAllocRaw(SDB_STB, STB_VER_NUMBER, size);
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  if (pRaw == NULL) goto _OVER;
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  int32_t dataPos = 0;
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  SDB_SET_BINARY(pRaw, dataPos, pStb->name, TSDB_TABLE_FNAME_LEN, _OVER)
  SDB_SET_BINARY(pRaw, dataPos, pStb->db, TSDB_DB_FNAME_LEN, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->createdTime, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->updateTime, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->uid, _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->dbUid, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->tagVer, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->colVer, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->smaVer, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->nextColId, _OVER)
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  SDB_SET_INT64(pRaw, dataPos, pStb->maxdelay[0], _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->maxdelay[1], _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->watermark[0], _OVER)
  SDB_SET_INT64(pRaw, dataPos, pStb->watermark[1], _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->ttl, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->numOfColumns, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->numOfTags, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->numOfFuncs, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->commentLen, _OVER)
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  SDB_SET_INT32(pRaw, dataPos, pStb->ast1Len, _OVER)
  SDB_SET_INT32(pRaw, dataPos, pStb->ast2Len, _OVER)
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  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
    SSchema *pSchema = &pStb->pColumns[i];
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    SDB_SET_INT8(pRaw, dataPos, pSchema->type, _OVER)
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    SDB_SET_INT8(pRaw, dataPos, pSchema->flags, _OVER)
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    SDB_SET_INT16(pRaw, dataPos, pSchema->colId, _OVER)
    SDB_SET_INT32(pRaw, dataPos, pSchema->bytes, _OVER)
    SDB_SET_BINARY(pRaw, dataPos, pSchema->name, TSDB_COL_NAME_LEN, _OVER)
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  }

  for (int32_t i = 0; i < pStb->numOfTags; ++i) {
    SSchema *pSchema = &pStb->pTags[i];
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    SDB_SET_INT8(pRaw, dataPos, pSchema->type, _OVER)
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    SDB_SET_INT8(pRaw, dataPos, pSchema->flags, _OVER)
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    SDB_SET_INT16(pRaw, dataPos, pSchema->colId, _OVER)
    SDB_SET_INT32(pRaw, dataPos, pSchema->bytes, _OVER)
    SDB_SET_BINARY(pRaw, dataPos, pSchema->name, TSDB_COL_NAME_LEN, _OVER)
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  }

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  for (int32_t i = 0; i < pStb->numOfFuncs; ++i) {
    char *func = taosArrayGet(pStb->pFuncs, i);
    SDB_SET_BINARY(pRaw, dataPos, func, TSDB_FUNC_NAME_LEN, _OVER)
  }

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  if (pStb->commentLen > 0) {
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    SDB_SET_BINARY(pRaw, dataPos, pStb->comment, pStb->commentLen + 1, _OVER)
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  }
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  if (pStb->ast1Len > 0) {
    SDB_SET_BINARY(pRaw, dataPos, pStb->pAst1, pStb->ast1Len, _OVER)
  }
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  if (pStb->ast2Len > 0) {
    SDB_SET_BINARY(pRaw, dataPos, pStb->pAst2, pStb->ast2Len, _OVER)
  }
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  SDB_SET_RESERVE(pRaw, dataPos, STB_RESERVE_SIZE, _OVER)
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  SDB_SET_DATALEN(pRaw, dataPos, _OVER)
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  terrno = 0;

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_OVER:
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  if (terrno != 0) {
    mError("stb:%s, failed to encode to raw:%p since %s", pStb->name, pRaw, terrstr());
    sdbFreeRaw(pRaw);
    return NULL;
  }
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  mTrace("stb:%s, encode to raw:%p, row:%p", pStb->name, pRaw, pStb);
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  return pRaw;
}

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static SSdbRow *mndStbActionDecode(SSdbRaw *pRaw) {
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  terrno = TSDB_CODE_OUT_OF_MEMORY;
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  SSdbRow *pRow = NULL;
  SStbObj *pStb = NULL;
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  int8_t sver = 0;
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  if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto _OVER;
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  if (sver != STB_VER_NUMBER) {
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    terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
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    goto _OVER;
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  }

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  pRow = sdbAllocRow(sizeof(SStbObj));
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  if (pRow == NULL) goto _OVER;
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  pStb = sdbGetRowObj(pRow);
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  if (pStb == NULL) goto _OVER;
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  int32_t dataPos = 0;
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  SDB_GET_BINARY(pRaw, dataPos, pStb->name, TSDB_TABLE_FNAME_LEN, _OVER)
  SDB_GET_BINARY(pRaw, dataPos, pStb->db, TSDB_DB_FNAME_LEN, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->createdTime, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->updateTime, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->uid, _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->dbUid, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->tagVer, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->colVer, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->smaVer, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->nextColId, _OVER)
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  SDB_GET_INT64(pRaw, dataPos, &pStb->maxdelay[0], _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->maxdelay[1], _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->watermark[0], _OVER)
  SDB_GET_INT64(pRaw, dataPos, &pStb->watermark[1], _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->ttl, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->numOfColumns, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->numOfTags, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->numOfFuncs, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->commentLen, _OVER)
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  SDB_GET_INT32(pRaw, dataPos, &pStb->ast1Len, _OVER)
  SDB_GET_INT32(pRaw, dataPos, &pStb->ast2Len, _OVER)
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  pStb->pColumns = taosMemoryCalloc(pStb->numOfColumns, sizeof(SSchema));
  pStb->pTags = taosMemoryCalloc(pStb->numOfTags, sizeof(SSchema));
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  pStb->pFuncs = taosArrayInit(pStb->numOfFuncs, TSDB_FUNC_NAME_LEN);
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  if (pStb->pColumns == NULL || pStb->pTags == NULL || pStb->pFuncs == NULL) {
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    goto _OVER;
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  }
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  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
    SSchema *pSchema = &pStb->pColumns[i];
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    SDB_GET_INT8(pRaw, dataPos, &pSchema->type, _OVER)
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    SDB_GET_INT8(pRaw, dataPos, &pSchema->flags, _OVER)
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    SDB_GET_INT16(pRaw, dataPos, &pSchema->colId, _OVER)
    SDB_GET_INT32(pRaw, dataPos, &pSchema->bytes, _OVER)
    SDB_GET_BINARY(pRaw, dataPos, pSchema->name, TSDB_COL_NAME_LEN, _OVER)
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  }

  for (int32_t i = 0; i < pStb->numOfTags; ++i) {
    SSchema *pSchema = &pStb->pTags[i];
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    SDB_GET_INT8(pRaw, dataPos, &pSchema->type, _OVER)
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    SDB_GET_INT8(pRaw, dataPos, &pSchema->flags, _OVER)
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    SDB_GET_INT16(pRaw, dataPos, &pSchema->colId, _OVER)
    SDB_GET_INT32(pRaw, dataPos, &pSchema->bytes, _OVER)
    SDB_GET_BINARY(pRaw, dataPos, pSchema->name, TSDB_COL_NAME_LEN, _OVER)
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  }

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  for (int32_t i = 0; i < pStb->numOfFuncs; ++i) {
    char funcName[TSDB_FUNC_NAME_LEN] = {0};
    SDB_GET_BINARY(pRaw, dataPos, funcName, TSDB_FUNC_NAME_LEN, _OVER)
    taosArrayPush(pStb->pFuncs, funcName);
  }

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  if (pStb->commentLen > 0) {
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    pStb->comment = taosMemoryCalloc(pStb->commentLen + 1, 1);
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    if (pStb->comment == NULL) goto _OVER;
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    SDB_GET_BINARY(pRaw, dataPos, pStb->comment, pStb->commentLen + 1, _OVER)
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  }
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  if (pStb->ast1Len > 0) {
    pStb->pAst1 = taosMemoryCalloc(pStb->ast1Len, 1);
    if (pStb->pAst1 == NULL) goto _OVER;
    SDB_GET_BINARY(pRaw, dataPos, pStb->pAst1, pStb->ast1Len, _OVER)
  }
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  if (pStb->ast2Len > 0) {
    pStb->pAst2 = taosMemoryCalloc(pStb->ast2Len, 1);
    if (pStb->pAst2 == NULL) goto _OVER;
    SDB_GET_BINARY(pRaw, dataPos, pStb->pAst2, pStb->ast2Len, _OVER)
  }
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  SDB_GET_RESERVE(pRaw, dataPos, STB_RESERVE_SIZE, _OVER)
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  terrno = 0;

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_OVER:
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  if (terrno != 0) {
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    mError("stb:%s, failed to decode from raw:%p since %s", pStb == NULL ? "null" : pStb->name, pRaw, terrstr());
    if (pStb != NULL) {
      taosMemoryFreeClear(pStb->pColumns);
      taosMemoryFreeClear(pStb->pTags);
      taosMemoryFreeClear(pStb->comment);
    }
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    taosMemoryFreeClear(pRow);
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    return NULL;
  }
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  mTrace("stb:%s, decode from raw:%p, row:%p", pStb->name, pRaw, pStb);
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  return pRow;
}

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void mndFreeStb(SStbObj *pStb) {
  taosArrayDestroy(pStb->pFuncs);
  taosMemoryFreeClear(pStb->pColumns);
  taosMemoryFreeClear(pStb->pTags);
  taosMemoryFreeClear(pStb->comment);
  taosMemoryFreeClear(pStb->pAst1);
  taosMemoryFreeClear(pStb->pAst2);
}

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static int32_t mndStbActionInsert(SSdb *pSdb, SStbObj *pStb) {
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  mTrace("stb:%s, perform insert action, row:%p", pStb->name, pStb);
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  return 0;
}

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static int32_t mndStbActionDelete(SSdb *pSdb, SStbObj *pStb) {
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  mTrace("stb:%s, perform delete action, row:%p", pStb->name, pStb);
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  mndFreeStb(pStb);
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  return 0;
}

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static int32_t mndStbActionUpdate(SSdb *pSdb, SStbObj *pOld, SStbObj *pNew) {
  mTrace("stb:%s, perform update action, old row:%p new row:%p", pOld->name, pOld, pNew);
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  taosWLockLatch(&pOld->lock);
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  if (pOld->numOfColumns < pNew->numOfColumns) {
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    void *pColumns = taosMemoryMalloc(pNew->numOfColumns * sizeof(SSchema));
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    if (pColumns != NULL) {
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      taosMemoryFree(pOld->pColumns);
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      pOld->pColumns = pColumns;
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    } else {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      mTrace("stb:%s, failed to perform update action since %s", pOld->name, terrstr());
      taosWUnLockLatch(&pOld->lock);
    }
  }

  if (pOld->numOfTags < pNew->numOfTags) {
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    void *pTags = taosMemoryMalloc(pNew->numOfTags * sizeof(SSchema));
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    if (pTags != NULL) {
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      taosMemoryFree(pOld->pTags);
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      pOld->pTags = pTags;
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    } else {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      mTrace("stb:%s, failed to perform update action since %s", pOld->name, terrstr());
      taosWUnLockLatch(&pOld->lock);
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    }
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  }

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  if (pOld->commentLen < pNew->commentLen && pNew->commentLen > 0) {
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    void *comment = taosMemoryMalloc(pNew->commentLen + 1);
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    if (comment != NULL) {
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      taosMemoryFree(pOld->comment);
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      pOld->comment = comment;
    } else {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      mTrace("stb:%s, failed to perform update action since %s", pOld->name, terrstr());
      taosWUnLockLatch(&pOld->lock);
    }
  }
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  pOld->commentLen = pNew->commentLen;
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352
  if (pOld->ast1Len < pNew->ast1Len) {
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    void *pAst1 = taosMemoryMalloc(pNew->ast1Len + 1);
354 355 356 357 358 359 360 361 362 363 364
    if (pAst1 != NULL) {
      taosMemoryFree(pOld->pAst1);
      pOld->pAst1 = pAst1;
    } else {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      mTrace("stb:%s, failed to perform update action since %s", pOld->name, terrstr());
      taosWUnLockLatch(&pOld->lock);
    }
  }

  if (pOld->ast2Len < pNew->ast2Len) {
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    void *pAst2 = taosMemoryMalloc(pNew->ast2Len + 1);
366 367 368 369 370 371 372 373 374 375
    if (pAst2 != NULL) {
      taosMemoryFree(pOld->pAst2);
      pOld->pAst2 = pAst2;
    } else {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      mTrace("stb:%s, failed to perform update action since %s", pOld->name, terrstr());
      taosWUnLockLatch(&pOld->lock);
    }
  }

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376
  pOld->updateTime = pNew->updateTime;
377 378
  pOld->tagVer = pNew->tagVer;
  pOld->colVer = pNew->colVer;
379
  pOld->smaVer = pNew->smaVer;
380
  pOld->nextColId = pNew->nextColId;
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  pOld->ttl = pNew->ttl;
382 383 384 385 386 387 388 389
  if (pNew->numOfColumns > 0) {
    pOld->numOfColumns = pNew->numOfColumns;
    memcpy(pOld->pColumns, pNew->pColumns, pOld->numOfColumns * sizeof(SSchema));
  }
  if (pNew->numOfTags > 0) {
    pOld->numOfTags = pNew->numOfTags;
    memcpy(pOld->pTags, pNew->pTags, pOld->numOfTags * sizeof(SSchema));
  }
390
  if (pNew->commentLen > 0) {
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wmmhello 已提交
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    memcpy(pOld->comment, pNew->comment, pNew->commentLen + 1);
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392
    pOld->commentLen = pNew->commentLen;
S
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  }
394 395
  if (pNew->ast1Len != 0) {
    memcpy(pOld->pAst1, pNew->pAst1, pNew->ast1Len);
S
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396
    pOld->ast1Len = pNew->ast1Len;
397 398 399
  }
  if (pNew->ast2Len != 0) {
    memcpy(pOld->pAst2, pNew->pAst2, pNew->ast2Len);
S
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400
    pOld->ast2Len = pNew->ast2Len;
401
  }
S
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402
  taosWUnLockLatch(&pOld->lock);
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  return 0;
}

406
SStbObj *mndAcquireStb(SMnode *pMnode, char *stbName) {
407
  SSdb    *pSdb = pMnode->pSdb;
S
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408
  SStbObj *pStb = sdbAcquire(pSdb, SDB_STB, stbName);
S
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409
  if (pStb == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
S
Shengliang Guan 已提交
410 411 412
    terrno = TSDB_CODE_MND_STB_NOT_EXIST;
  }
  return pStb;
413 414
}

415
void mndReleaseStb(SMnode *pMnode, SStbObj *pStb) {
416 417 418 419
  SSdb *pSdb = pMnode->pSdb;
  sdbRelease(pSdb, pStb);
}

420
SDbObj *mndAcquireDbByStb(SMnode *pMnode, const char *stbName) {
421 422
  SName name = {0};
  tNameFromString(&name, stbName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
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423

424 425
  char db[TSDB_TABLE_FNAME_LEN] = {0};
  tNameGetFullDbName(&name, db);
426

427 428
  return mndAcquireDb(pMnode, db);
}
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430
static FORCE_INLINE int32_t schemaExColIdCompare(const void *colId, const void *pSchema) {
H
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431
  if (*(col_id_t *)colId < ((SSchema *)pSchema)->colId) {
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432
    return -1;
H
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433
  } else if (*(col_id_t *)colId > ((SSchema *)pSchema)->colId) {
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    return 1;
  }
  return 0;
}

dengyihao's avatar
dengyihao 已提交
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void *mndBuildVCreateStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pStb, int32_t *pContLen, void *alterOriData,
                            int32_t alterOriDataLen) {
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441
  SEncoder       encoder = {0};
H
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442 443 444
  int32_t        contLen;
  SName          name = {0};
  SVCreateStbReq req = {0};
H
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445

S
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446
  tNameFromString(&name, pStb->name, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
447 448
  char dbFName[TSDB_DB_FNAME_LEN] = {0};
  tNameGetFullDbName(&name, dbFName);
449

S
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450
  req.name = (char *)tNameGetTableName(&name);
H
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451
  req.suid = pStb->uid;
452
  req.rollup = pStb->ast1Len > 0 ? 1 : 0;
453 454
  req.alterOriData = alterOriData;
  req.alterOriDataLen = alterOriDataLen;
455 456
  // todo
  req.schemaRow.nCols = pStb->numOfColumns;
457
  req.schemaRow.version = pStb->colVer;
458
  req.schemaRow.pSchema = pStb->pColumns;
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459
  req.schemaTag.nCols = pStb->numOfTags;
460
  req.schemaTag.version = pStb->tagVer;
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461
  req.schemaTag.pSchema = pStb->pTags;
H
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462

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  if (req.rollup) {
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    req.rsmaParam.maxdelay[0] = pStb->maxdelay[0];
    req.rsmaParam.maxdelay[1] = pStb->maxdelay[1];
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    req.rsmaParam.watermark[0] = pStb->watermark[0];
    req.rsmaParam.watermark[1] = pStb->watermark[1];
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    if (pStb->ast1Len > 0) {
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469
      if (mndConvertRsmaTask(&req.rsmaParam.qmsg[0], &req.rsmaParam.qmsgLen[0], pStb->pAst1, pStb->uid,
470 471
                             STREAM_TRIGGER_WINDOW_CLOSE, req.rsmaParam.watermark[0],
                             req.rsmaParam.deleteMark[0]) < 0) {
472
        goto _err;
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473
      }
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474 475
    }
    if (pStb->ast2Len > 0) {
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      if (mndConvertRsmaTask(&req.rsmaParam.qmsg[1], &req.rsmaParam.qmsgLen[1], pStb->pAst2, pStb->uid,
477 478
                             STREAM_TRIGGER_WINDOW_CLOSE, req.rsmaParam.watermark[1],
                             req.rsmaParam.deleteMark[1]) < 0) {
479
        goto _err;
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480
      }
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481
    }
H
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482
  }
H
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483
  // get length
484 485 486
  int32_t ret = 0;
  tEncodeSize(tEncodeSVCreateStbReq, &req, contLen, ret);
  if (ret < 0) {
487
    goto _err;
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488 489
  }

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490
  contLen += sizeof(SMsgHead);
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  SMsgHead *pHead = taosMemoryCalloc(1, contLen);
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493
  if (pHead == NULL) {
H
more  
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494
    terrno = TSDB_CODE_OUT_OF_MEMORY;
495
    goto _err;
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496 497
  }

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498 499
  pHead->contLen = htonl(contLen);
  pHead->vgId = htonl(pVgroup->vgId);
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500

S
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501
  void *pBuf = POINTER_SHIFT(pHead, sizeof(SMsgHead));
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  tEncoderInit(&encoder, pBuf, contLen - sizeof(SMsgHead));
  if (tEncodeSVCreateStbReq(&encoder, &req) < 0) {
504 505
    taosMemoryFreeClear(pHead);
    tEncoderClear(&encoder);
506
    goto _err;
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507
  }
H
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508
  tEncoderClear(&encoder);
H
more  
Hongze Cheng 已提交
509

S
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  *pContLen = contLen;
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  taosMemoryFreeClear(req.rsmaParam.qmsg[0]);
  taosMemoryFreeClear(req.rsmaParam.qmsg[1]);
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513
  return pHead;
514
_err:
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  taosMemoryFreeClear(req.rsmaParam.qmsg[0]);
  taosMemoryFreeClear(req.rsmaParam.qmsg[1]);
517
  return NULL;
518 519
}

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520
static void *mndBuildVDropStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pStb, int32_t *pContLen) {
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  SName        name = {0};
  SVDropStbReq req = {0};
  int32_t      contLen = 0;
  int32_t      ret = 0;
  SMsgHead    *pHead = NULL;
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526
  SEncoder     encoder = {0};
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527

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528 529 530 531
  tNameFromString(&name, pStb->name, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);

  req.name = (char *)tNameGetTableName(&name);
  req.suid = pStb->uid;
532

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  tEncodeSize(tEncodeSVDropStbReq, &req, contLen, ret);
  if (ret < 0) return NULL;

  contLen += sizeof(SMsgHead);
  pHead = taosMemoryMalloc(contLen);
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538
  if (pHead == NULL) {
539 540 541 542
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return NULL;
  }

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  pHead->contLen = htonl(contLen);
  pHead->vgId = htonl(pVgroup->vgId);

  void *pBuf = POINTER_SHIFT(pHead, sizeof(SMsgHead));
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547

H
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  tEncoderInit(&encoder, pBuf, contLen - sizeof(SMsgHead));
  tEncodeSVDropStbReq(&encoder, &req);
  tEncoderClear(&encoder);
551

S
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552 553
  *pContLen = contLen;
  return pHead;
554 555
}

556
int32_t mndCheckCreateStbReq(SMCreateStbReq *pCreate) {
557
  if (pCreate->igExists < 0 || pCreate->igExists > 1) {
558
    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
559 560
    return -1;
  }
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Shengliang Guan 已提交
561

562
  if (pCreate->numOfColumns < TSDB_MIN_COLUMNS || pCreate->numOfTags + pCreate->numOfColumns > TSDB_MAX_COLUMNS) {
563
    terrno = TSDB_CODE_PAR_INVALID_COLUMNS_NUM;
564 565
    return -1;
  }
566

567
  if (pCreate->numOfTags <= 0 || pCreate->numOfTags > TSDB_MAX_TAGS) {
568
    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
569 570
    return -1;
  }
571

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  SField *pField = taosArrayGet(pCreate->pColumns, 0);
S
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573
  if (pField->type != TSDB_DATA_TYPE_TIMESTAMP) {
574
    terrno = TSDB_CODE_PAR_INVALID_FIRST_COLUMN;
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    return -1;
  }

S
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578
  for (int32_t i = 0; i < pCreate->numOfColumns; ++i) {
579
    SField *pField1 = taosArrayGet(pCreate->pColumns, i);
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580
    if (pField1->type >= TSDB_DATA_TYPE_MAX) {
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      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
      return -1;
    }
584
    if (pField1->bytes <= 0) {
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      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
      return -1;
    }
588
    if (pField1->name[0] == 0) {
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      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
      return -1;
    }
  }

  for (int32_t i = 0; i < pCreate->numOfTags; ++i) {
595
    SField *pField1 = taosArrayGet(pCreate->pTags, i);
S
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596
    if (pField1->type >= TSDB_DATA_TYPE_MAX) {
597
      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
598 599
      return -1;
    }
600
    if (pField1->bytes <= 0) {
601
      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
602 603
      return -1;
    }
604
    if (pField1->name[0] == 0) {
605
      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
606 607 608
      return -1;
    }
  }
609

610 611 612
  return 0;
}

613
static int32_t mndSetCreateStbRedoLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
S
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  SSdbRaw *pRedoRaw = mndStbActionEncode(pStb);
  if (pRedoRaw == NULL) return -1;
S
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  if (mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
    sdbFreeRaw(pRedoRaw);
    return -1;
  }
S
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  if (sdbSetRawStatus(pRedoRaw, SDB_STATUS_CREATING) != 0) return -1;

  return 0;
}

625
static int32_t mndSetCreateStbUndoLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
S
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  SSdbRaw *pUndoRaw = mndStbActionEncode(pStb);
  if (pUndoRaw == NULL) return -1;
S
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628 629 630 631
  if (mndTransAppendUndolog(pTrans, pUndoRaw) != 0) {
    sdbFreeRaw(pUndoRaw);
    return -1;
  }
S
Shengliang Guan 已提交
632 633 634 635 636
  if (sdbSetRawStatus(pUndoRaw, SDB_STATUS_DROPPED) != 0) return -1;

  return 0;
}

637
static int32_t mndSetCreateStbCommitLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
S
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638 639
  SSdbRaw *pCommitRaw = mndStbActionEncode(pStb);
  if (pCommitRaw == NULL) return -1;
S
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  if (mndTransAppendCommitlog(pTrans, pCommitRaw) != 0) {
    sdbFreeRaw(pCommitRaw);
    return -1;
  }
S
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  if (sdbSetRawStatus(pCommitRaw, SDB_STATUS_READY) != 0) return -1;

  return 0;
}

649
static int32_t mndSetCreateStbRedoActions(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
650
  SSdb   *pSdb = pMnode->pSdb;
651
  SVgObj *pVgroup = NULL;
652
  void   *pIter = NULL;
S
Shengliang Guan 已提交
653
  int32_t contLen;
654 655 656 657

  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;
S
Shengliang Guan 已提交
658
    if (!mndVgroupInDb(pVgroup, pDb->uid)) {
S
Shengliang Guan 已提交
659 660 661 662
      sdbRelease(pSdb, pVgroup);
      continue;
    }

663
    void *pReq = mndBuildVCreateStbReq(pMnode, pVgroup, pStb, &contLen, NULL, 0);
S
Shengliang Guan 已提交
664
    if (pReq == NULL) {
665 666 667 668
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
S
Shengliang Guan 已提交
669

670
    STransAction action = {0};
671
    action.mTraceId = pTrans->mTraceId;
672
    action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
S
Shengliang Guan 已提交
673
    action.pCont = pReq;
S
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674
    action.contLen = contLen;
H
Hongze Cheng 已提交
675
    action.msgType = TDMT_VND_CREATE_STB;
676
    action.acceptableCode = TSDB_CODE_TDB_STB_ALREADY_EXIST;
677
    action.retryCode = TSDB_CODE_TDB_STB_NOT_EXIST;
678
    if (mndTransAppendRedoAction(pTrans, &action) != 0) {
679
      taosMemoryFree(pReq);
680 681 682 683 684 685
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    sdbRelease(pSdb, pVgroup);
  }
S
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686 687 688 689

  return 0;
}

C
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int32_t mndSetForceDropCreateStbRedoActions(SMnode *pMnode, STrans *pTrans, SVgObj *pVgroup, SStbObj *pStb) {
  SSdb   *pSdb = pMnode->pSdb;
  int32_t contLen;

  void *pReq = mndBuildVCreateStbReq(pMnode, pVgroup, pStb, &contLen, NULL, 0);
  if (pReq == NULL) {
    return -1;
  }

  STransAction action = {0};
  action.mTraceId = pTrans->mTraceId;
  action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
  action.pCont = pReq;
  action.contLen = contLen;
  action.msgType = TDMT_VND_CREATE_STB;
  action.acceptableCode = TSDB_CODE_TDB_STB_ALREADY_EXIST;
  action.retryCode = TSDB_CODE_TDB_STB_NOT_EXIST;
  if (mndTransAppendRedoAction(pTrans, &action) != 0) {
    taosMemoryFree(pReq);
    return -1;
  }

  return 0;
}

715
static int32_t mndSetCreateStbUndoActions(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
716
  SSdb   *pSdb = pMnode->pSdb;
717
  SVgObj *pVgroup = NULL;
718
  void   *pIter = NULL;
719 720 721 722

  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;
S
Shengliang Guan 已提交
723
    if (!mndVgroupInDb(pVgroup, pDb->uid)) {
S
Shengliang Guan 已提交
724 725 726 727
      sdbRelease(pSdb, pVgroup);
      continue;
    }

S
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728
    int32_t contLen = 0;
S
Shengliang Guan 已提交
729
    void   *pReq = mndBuildVDropStbReq(pMnode, pVgroup, pStb, &contLen);
S
Shengliang Guan 已提交
730
    if (pReq == NULL) {
731 732 733 734 735
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }
S
Shengliang Guan 已提交
736

737 738
    STransAction action = {0};
    action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
S
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739
    action.pCont = pReq;
S
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740
    action.contLen = contLen;
H
Hongze Cheng 已提交
741
    action.msgType = TDMT_VND_DROP_STB;
742
    action.acceptableCode = TSDB_CODE_TDB_STB_NOT_EXIST;
743
    if (mndTransAppendUndoAction(pTrans, &action) != 0) {
744
      taosMemoryFree(pReq);
745 746 747 748 749 750
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    sdbRelease(pSdb, pVgroup);
  }
S
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751 752 753 754

  return 0;
}

S
sma  
Shengliang Guan 已提交
755
static SSchema *mndFindStbColumns(const SStbObj *pStb, const char *colName) {
C
Cary Xu 已提交
756
  for (int32_t col = 0; col < pStb->numOfColumns; ++col) {
S
sma  
Shengliang Guan 已提交
757
    SSchema *pSchema = &pStb->pColumns[col];
C
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    if (strncasecmp(pSchema->name, colName, TSDB_COL_NAME_LEN) == 0) {
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      return pSchema;
    }
  }
  return NULL;
}

765 766 767 768 769
int32_t mndBuildStbFromReq(SMnode *pMnode, SStbObj *pDst, SMCreateStbReq *pCreate, SDbObj *pDb) {
  memcpy(pDst->name, pCreate->name, TSDB_TABLE_FNAME_LEN);
  memcpy(pDst->db, pDb->name, TSDB_DB_FNAME_LEN);
  pDst->createdTime = taosGetTimestampMs();
  pDst->updateTime = pDst->createdTime;
770 771
  pDst->uid =
      (pCreate->source == TD_REQ_FROM_TAOX) ? pCreate->suid : mndGenerateUid(pCreate->name, TSDB_TABLE_FNAME_LEN);
772
  pDst->dbUid = pDb->uid;
773 774
  pDst->tagVer = 1;
  pDst->colVer = 1;
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  pDst->smaVer = 1;
776
  pDst->nextColId = 1;
777 778 779 780
  pDst->maxdelay[0] = pCreate->delay1;
  pDst->maxdelay[1] = pCreate->delay2;
  pDst->watermark[0] = pCreate->watermark1;
  pDst->watermark[1] = pCreate->watermark2;
781 782 783
  pDst->ttl = pCreate->ttl;
  pDst->numOfColumns = pCreate->numOfColumns;
  pDst->numOfTags = pCreate->numOfTags;
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  pDst->numOfFuncs = pCreate->numOfFuncs;
785
  pDst->commentLen = pCreate->commentLen;
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  pDst->pFuncs = pCreate->pFuncs;
  pCreate->pFuncs = NULL;
788

789
  if (pDst->commentLen > 0) {
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    pDst->comment = taosMemoryCalloc(pDst->commentLen + 1, 1);
791
    if (pDst->comment == NULL) {
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      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }
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    memcpy(pDst->comment, pCreate->pComment, pDst->commentLen + 1);
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  }
797

798 799 800 801
  pDst->ast1Len = pCreate->ast1Len;
  if (pDst->ast1Len > 0) {
    pDst->pAst1 = taosMemoryCalloc(pDst->ast1Len, 1);
    if (pDst->pAst1 == NULL) {
802 803 804
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }
805
    memcpy(pDst->pAst1, pCreate->pAst1, pDst->ast1Len);
806 807
  }

808 809 810 811
  pDst->ast2Len = pCreate->ast2Len;
  if (pDst->ast2Len > 0) {
    pDst->pAst2 = taosMemoryCalloc(pDst->ast2Len, 1);
    if (pDst->pAst2 == NULL) {
812 813 814
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }
815
    memcpy(pDst->pAst2, pCreate->pAst2, pDst->ast2Len);
816 817
  }

818 819 820
  pDst->pColumns = taosMemoryCalloc(1, pDst->numOfColumns * sizeof(SSchema));
  pDst->pTags = taosMemoryCalloc(1, pDst->numOfTags * sizeof(SSchema));
  if (pDst->pColumns == NULL || pDst->pTags == NULL) {
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    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }
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  if(pDst->nextColId < 0 || pDst->nextColId >= 0x7fff - pDst->numOfColumns - pDst->numOfTags){
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    terrno = TSDB_CODE_MND_FIELD_VALUE_OVERFLOW;
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    return -1;
  }

830
  for (int32_t i = 0; i < pDst->numOfColumns; ++i) {
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    SField  *pField = taosArrayGet(pCreate->pColumns, i);
832
    SSchema *pSchema = &pDst->pColumns[i];
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    pSchema->type = pField->type;
    pSchema->bytes = pField->bytes;
835
    pSchema->flags = pField->flags;
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    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
837 838
    pSchema->colId = pDst->nextColId;
    pDst->nextColId++;
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  }

841
  for (int32_t i = 0; i < pDst->numOfTags; ++i) {
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    SField  *pField = taosArrayGet(pCreate->pTags, i);
843
    SSchema *pSchema = &pDst->pTags[i];
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    pSchema->type = pField->type;
    pSchema->bytes = pField->bytes;
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    if (i == 0) {
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      SSCHMEA_SET_IDX_ON(pSchema);
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    }
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    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
850 851
    pSchema->colId = pDst->nextColId;
    pDst->nextColId++;
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  }
853 854 855
  return 0;
}

856
static int32_t mndCreateStb(SMnode *pMnode, SRpcMsg *pReq, SMCreateStbReq *pCreate, SDbObj *pDb) {
857
  SStbObj stbObj = {0};
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  int32_t code = -1;
859

860
  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_DB_INSIDE, pReq, "create-stb");
861
  if (pTrans == NULL) goto _OVER;
862

863
  mInfo("trans:%d, used to create stb:%s", pTrans->id, pCreate->name);
864
  if (mndBuildStbFromReq(pMnode, &stbObj, pCreate, pDb) != 0) goto _OVER;
865
  if (mndAddStbToTrans(pMnode, pTrans, pDb, &stbObj) < 0) goto _OVER;
866
  if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
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  code = 0;

869
_OVER:
870
  mndTransDrop(pTrans);
871
  mndStbActionDelete(pMnode->pSdb, &stbObj);
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  return code;
873
}
874

875
int32_t mndAddStbToTrans(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
876
  mndTransSetDbName(pTrans, pDb->name, pStb->name);
877
  if (mndTrancCheckConflict(pMnode, pTrans) != 0) return -1;
878 879 880 881 882 883 884
  if (mndSetCreateStbRedoLogs(pMnode, pTrans, pDb, pStb) != 0) return -1;
  if (mndSetCreateStbUndoLogs(pMnode, pTrans, pDb, pStb) != 0) return -1;
  if (mndSetCreateStbCommitLogs(pMnode, pTrans, pDb, pStb) != 0) return -1;
  if (mndSetCreateStbRedoActions(pMnode, pTrans, pDb, pStb) != 0) return -1;
  if (mndSetCreateStbUndoActions(pMnode, pTrans, pDb, pStb) != 0) return -1;
  return 0;
}
885

886
static int32_t mndProcessTtlTimer(SRpcMsg *pReq) {
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  SMnode           *pMnode = pReq->info.node;
  SSdb             *pSdb = pMnode->pSdb;
  SVgObj           *pVgroup = NULL;
  void             *pIter = NULL;
891
  SVDropTtlTableReq ttlReq = {.timestampSec = taosGetTimestampSec()};
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  int32_t           reqLen = tSerializeSVDropTtlTableReq(NULL, 0, &ttlReq);
  int32_t           contLen = reqLen + sizeof(SMsgHead);
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895 896
  mInfo("start to process ttl timer");

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  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;

901
    SMsgHead *pHead = rpcMallocCont(contLen);
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    if (pHead == NULL) {
903
      sdbCancelFetch(pSdb, pVgroup);
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      sdbRelease(pSdb, pVgroup);
      continue;
    }
    pHead->contLen = htonl(contLen);
    pHead->vgId = htonl(pVgroup->vgId);
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    tSerializeSVDropTtlTableReq((char *)pHead + sizeof(SMsgHead), contLen, &ttlReq);
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911
    SRpcMsg rpcMsg = {.msgType = TDMT_VND_DROP_TTL_TABLE, .pCont = pHead, .contLen = contLen, .info = pReq->info};
912
    SEpSet  epSet = mndGetVgroupEpset(pMnode, pVgroup);
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    int32_t code = tmsgSendReq(&epSet, &rpcMsg);
914
    if (code != 0) {
S
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      mError("vgId:%d, failed to send drop ttl table request to vnode since 0x%x", pVgroup->vgId, code);
916
    } else {
917
      mInfo("vgId:%d, send drop ttl table request to vnode, time:%" PRId32, pVgroup->vgId, ttlReq.timestampSec);
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    }
    sdbRelease(pSdb, pVgroup);
  }
921

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  return 0;
}

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static int32_t mndFindSuperTableTagIndex(const SStbObj *pStb, const char *tagName) {
  for (int32_t tag = 0; tag < pStb->numOfTags; tag++) {
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    if (strcmp(pStb->pTags[tag].name, tagName) == 0) {
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      return tag;
    }
  }

  return -1;
}

static int32_t mndFindSuperTableColumnIndex(const SStbObj *pStb, const char *colName) {
  for (int32_t col = 0; col < pStb->numOfColumns; col++) {
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    if (strcmp(pStb->pColumns[col].name, colName) == 0) {
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      return col;
    }
  }

  return -1;
}

static int32_t mndBuildStbFromAlter(SStbObj *pStb, SStbObj *pDst, SMCreateStbReq *createReq) {
  taosRLockLatch(&pStb->lock);
  memcpy(pDst, pStb, sizeof(SStbObj));
  taosRUnLockLatch(&pStb->lock);

  pDst->updateTime = taosGetTimestampMs();
  pDst->numOfColumns = createReq->numOfColumns;
  pDst->numOfTags = createReq->numOfTags;
  pDst->pColumns = taosMemoryCalloc(1, pDst->numOfColumns * sizeof(SSchema));
  pDst->pTags = taosMemoryCalloc(1, pDst->numOfTags * sizeof(SSchema));
  if (pDst->pColumns == NULL || pDst->pTags == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

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  if(pDst->nextColId < 0 || pDst->nextColId >= 0x7fff - pDst->numOfColumns - pDst->numOfTags){
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    terrno = TSDB_CODE_MND_FIELD_VALUE_OVERFLOW;
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    return -1;
  }

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  for (int32_t i = 0; i < pDst->numOfColumns; ++i) {
    SField  *pField = taosArrayGet(createReq->pColumns, i);
    SSchema *pSchema = &pDst->pColumns[i];
    pSchema->type = pField->type;
    pSchema->bytes = pField->bytes;
    pSchema->flags = pField->flags;
    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
    int32_t cIndex = mndFindSuperTableColumnIndex(pStb, pField->name);
973
    if (cIndex >= 0) {
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      pSchema->colId = pStb->pColumns[cIndex].colId;
975
    } else {
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      pSchema->colId = pDst->nextColId++;
    }
  }

  for (int32_t i = 0; i < pDst->numOfTags; ++i) {
    SField  *pField = taosArrayGet(createReq->pTags, i);
    SSchema *pSchema = &pDst->pTags[i];
    pSchema->type = pField->type;
    pSchema->bytes = pField->bytes;
    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
    int32_t cIndex = mndFindSuperTableTagIndex(pStb, pField->name);
987
    if (cIndex >= 0) {
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      pSchema->colId = pStb->pTags[cIndex].colId;
989
    } else {
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      pSchema->colId = pDst->nextColId++;
    }
  }
  pDst->tagVer = createReq->tagVer;
  pDst->colVer = createReq->colVer;
  return TSDB_CODE_SUCCESS;
}

998
static int32_t mndProcessCreateStbReq(SRpcMsg *pReq) {
999
  SMnode        *pMnode = pReq->info.node;
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  int32_t        code = -1;
  SStbObj       *pStb = NULL;
  SDbObj        *pDb = NULL;
  SMCreateStbReq createReq = {0};
1004
  bool           isAlter = false;
1005

1006
  if (tDeserializeSMCreateStbReq(pReq->pCont, pReq->contLen, &createReq) != 0) {
S
Shengliang Guan 已提交
1007
    terrno = TSDB_CODE_INVALID_MSG;
1008
    goto _OVER;
S
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1009
  }
1010

1011
  mInfo("stb:%s, start to create", createReq.name);
S
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1012 1013
  if (mndCheckCreateStbReq(&createReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
1014
    goto _OVER;
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1015
  }
1016

S
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1017
  pStb = mndAcquireStb(pMnode, createReq.name);
1018
  if (pStb != NULL) {
S
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1019
    if (createReq.igExists) {
1020
      if (createReq.source == TD_REQ_FROM_APP) {
1021
        mInfo("stb:%s, already exist, ignore exist is set", createReq.name);
1022 1023 1024
        code = 0;
        goto _OVER;
      } else if (pStb->uid != createReq.suid) {
1025 1026
        mInfo("stb:%s, alter table does not need to be done, because table is deleted", createReq.name);
        code = 0;
1027 1028
        goto _OVER;
      } else if (createReq.tagVer > 0 || createReq.colVer > 0) {
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        int32_t tagDelta = createReq.tagVer - pStb->tagVer;
        int32_t colDelta = createReq.colVer - pStb->colVer;
        int32_t verDelta = tagDelta + colDelta;
1032 1033 1034 1035 1036 1037 1038
        mInfo("stb:%s, already exist while create, input tagVer:%d colVer:%d, exist tagVer:%d colVer:%d",
              createReq.name, createReq.tagVer, createReq.colVer, pStb->tagVer, pStb->colVer);
        if (tagDelta <= 0 && colDelta <= 0) {
          mInfo("stb:%s, schema version is not incremented and nothing needs to be done", createReq.name);
          code = 0;
          goto _OVER;
        } else if ((tagDelta == 1 || colDelta == 1) && (verDelta == 1)) {
1039
          isAlter = true;
1040 1041 1042 1043 1044 1045 1046
          mInfo("stb:%s, schema version is only increased by 1 number, do alter operation", createReq.name);
        } else {
          mError("stb:%s, schema version increase more than 1 number, error is returned", createReq.name);
          terrno = TSDB_CODE_MND_INVALID_SCHEMA_VER;
          goto _OVER;
        }
      } else {
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1047 1048
        mError("stb:%s, already exist while create, input tagVer:%d colVer:%d is invalid, origin tagVer:%d colVer:%d",
               createReq.name, createReq.tagVer, createReq.colVer, pStb->tagVer, pStb->colVer);
1049 1050 1051
        terrno = TSDB_CODE_MND_INVALID_SCHEMA_VER;
        goto _OVER;
      }
1052 1053
    } else {
      terrno = TSDB_CODE_MND_STB_ALREADY_EXIST;
1054
      goto _OVER;
1055
    }
S
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1056
  } else if (terrno != TSDB_CODE_MND_STB_NOT_EXIST) {
1057
    goto _OVER;
1058
  } else if (createReq.source == TD_REQ_FROM_TAOX && (createReq.tagVer != 1 || createReq.colVer != 1)) {
1059 1060 1061
    mInfo("stb:%s, alter table does not need to be done, because table is deleted", createReq.name);
    code = 0;
    goto _OVER;
1062 1063
  }

S
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1064
  pDb = mndAcquireDbByStb(pMnode, createReq.name);
1065 1066
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
1067
    goto _OVER;
1068 1069
  }

1070
  if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_WRITE_DB, pDb) != 0) {
1071
    goto _OVER;
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  }

1074
  int32_t numOfStbs = -1;
1075 1076 1077 1078
  if (mndGetNumOfStbs(pMnode, pDb->name, &numOfStbs) != 0) {
    goto _OVER;
  }

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  if (pDb->cfg.numOfStables == 1 && numOfStbs != 0) {
1080 1081 1082 1083
    terrno = TSDB_CODE_MND_SINGLE_STB_MODE_DB;
    goto _OVER;
  }

1084 1085 1086 1087 1088
  if ((terrno = grantCheck(TSDB_GRANT_STABLE)) < 0) {
    code = -1;
    goto _OVER;
  }

1089
  if (isAlter) {
1090
    bool    needRsp = false;
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    SStbObj pDst = {0};
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    if (mndBuildStbFromAlter(pStb, &pDst, &createReq) != 0) {
      taosMemoryFreeClear(pDst.pTags);
      taosMemoryFreeClear(pDst.pColumns);
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      goto _OVER;
    }

    code = mndAlterStbImp(pMnode, pReq, pDb, &pDst, needRsp, NULL, 0);
    taosMemoryFreeClear(pDst.pTags);
    taosMemoryFreeClear(pDst.pColumns);
1101 1102 1103
  } else {
    code = mndCreateStb(pMnode, pReq, &createReq, pDb);
  }
1104
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
1105

1106
_OVER:
1107
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
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    mError("stb:%s, failed to create since %s", createReq.name, terrstr());
1109 1110
  }

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  mndReleaseStb(pMnode, pStb);
  mndReleaseDb(pMnode, pDb);
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  tFreeSMCreateStbReq(&createReq);
S
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  return code;
1116 1117
}

S
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1118
static int32_t mndCheckAlterStbReq(SMAlterStbReq *pAlter) {
S
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  if (pAlter->commentLen >= 0) return 0;
  if (pAlter->ttl != 0) return 0;
1121

S
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  if (pAlter->numOfFields < 1 || pAlter->numOfFields != (int32_t)taosArrayGetSize(pAlter->pFields)) {
    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
    return -1;
  }
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  for (int32_t i = 0; i < pAlter->numOfFields; ++i) {
    SField *pField = taosArrayGet(pAlter->pFields, i);
    if (pField->name[0] == 0) {
S
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      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
      return -1;
    }
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  }

  return 0;
}

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int32_t mndAllocStbSchemas(const SStbObj *pOld, SStbObj *pNew) {
1139 1140
  pNew->pTags = taosMemoryCalloc(pNew->numOfTags, sizeof(SSchema));
  pNew->pColumns = taosMemoryCalloc(pNew->numOfColumns, sizeof(SSchema));
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1141 1142 1143 1144 1145 1146 1147 1148 1149 1150
  if (pNew->pTags == NULL || pNew->pColumns == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

  memcpy(pNew->pColumns, pOld->pColumns, sizeof(SSchema) * pOld->numOfColumns);
  memcpy(pNew->pTags, pOld->pTags, sizeof(SSchema) * pOld->numOfTags);
  return 0;
}

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static int32_t mndUpdateStbCommentAndTTL(const SStbObj *pOld, SStbObj *pNew, char *pComment, int32_t commentLen,
                                         int32_t ttl) {
1153 1154
  if (commentLen > 0) {
    pNew->commentLen = commentLen;
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    pNew->comment = taosMemoryCalloc(1, commentLen + 1);
1156 1157 1158 1159
    if (pNew->comment == NULL) {
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }
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    memcpy(pNew->comment, pComment, commentLen + 1);
1161
  } else if (commentLen == 0) {
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    pNew->commentLen = 0;
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  } else {
1164
  }
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  if (ttl >= 0) {
    pNew->ttl = ttl;
  }
1169 1170 1171 1172 1173 1174 1175

  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }
  return 0;
}

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static int32_t mndAddSuperTableTag(const SStbObj *pOld, SStbObj *pNew, SArray *pFields, int32_t ntags) {
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  if (pOld->numOfTags + ntags > TSDB_MAX_TAGS) {
    terrno = TSDB_CODE_MND_TOO_MANY_TAGS;
    return -1;
  }

  if (pOld->numOfColumns + ntags + pOld->numOfTags > TSDB_MAX_COLUMNS) {
    terrno = TSDB_CODE_MND_TOO_MANY_COLUMNS;
    return -1;
  }

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  pNew->numOfTags = pNew->numOfTags + ntags;
  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }
1191

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  if(pNew->nextColId < 0 || pNew->nextColId >= 0x7fff - ntags){
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    terrno = TSDB_CODE_MND_FIELD_VALUE_OVERFLOW;
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    return -1;
  }

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  for (int32_t i = 0; i < ntags; i++) {
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    SField *pField = taosArrayGet(pFields, i);
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    if (mndFindSuperTableColumnIndex(pOld, pField->name) >= 0) {
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      terrno = TSDB_CODE_MND_COLUMN_ALREADY_EXIST;
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      return -1;
    }

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    if (mndFindSuperTableTagIndex(pOld, pField->name) >= 0) {
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      terrno = TSDB_CODE_MND_TAG_ALREADY_EXIST;
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      return -1;
    }

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    SSchema *pSchema = &pNew->pTags[pOld->numOfTags + i];
    pSchema->bytes = pField->bytes;
    pSchema->type = pField->type;
    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
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    pSchema->colId = pNew->nextColId;
    pNew->nextColId++;
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1216
    mInfo("stb:%s, start to add tag %s", pNew->name, pSchema->name);
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  }

1219
  pNew->tagVer++;
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  return 0;
}

1223
static int32_t mndCheckAlterColForTopic(SMnode *pMnode, const char *stbFullName, int64_t suid, col_id_t colId) {
1224 1225 1226 1227 1228 1229 1230
  SSdb *pSdb = pMnode->pSdb;
  void *pIter = NULL;
  while (1) {
    SMqTopicObj *pTopic = NULL;
    pIter = sdbFetch(pSdb, SDB_TOPIC, pIter, (void **)&pTopic);
    if (pIter == NULL) break;

1231
    mInfo("topic:%s, check tag and column modifiable, stb:%s suid:%" PRId64 " colId:%d, subType:%d sql:%s",
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          pTopic->name, stbFullName, suid, colId, pTopic->subType, pTopic->sql);
1233
    if (pTopic->ast == NULL) {
1234 1235 1236 1237 1238 1239
      sdbRelease(pSdb, pTopic);
      continue;
    }

    SNode *pAst = NULL;
    if (nodesStringToNode(pTopic->ast, &pAst) != 0) {
1240 1241 1242
      terrno = TSDB_CODE_MND_FIELD_CONFLICT_WITH_TOPIC;
      mError("topic:%s, create ast error", pTopic->name);
      sdbRelease(pSdb, pTopic);
1243 1244 1245 1246 1247 1248 1249 1250
      return -1;
    }

    SNodeList *pNodeList = NULL;
    nodesCollectColumns((SSelectStmt *)pAst, SQL_CLAUSE_FROM, NULL, COLLECT_COL_TYPE_ALL, &pNodeList);
    SNode *pNode = NULL;
    FOREACH(pNode, pNodeList) {
      SColumnNode *pCol = (SColumnNode *)pNode;
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      mInfo("topic:%s, check colId:%d tableId:%" PRId64 " ctbStbUid:%" PRId64, pTopic->name, pCol->colId, pCol->tableId,
            pTopic->ctbStbUid);
1253 1254

      if (pCol->tableId != suid && pTopic->ctbStbUid != suid) {
1255
        mInfo("topic:%s, check colId:%d passed", pTopic->name, pCol->colId);
1256 1257 1258 1259 1260
        goto NEXT;
      }
      if (pCol->colId > 0 && pCol->colId == colId) {
        terrno = TSDB_CODE_MND_FIELD_CONFLICT_WITH_TOPIC;
        mError("topic:%s, check colId:%d conflicted", pTopic->name, pCol->colId);
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        nodesDestroyNode(pAst);
        nodesDestroyList(pNodeList);
        sdbRelease(pSdb, pTopic);
1264 1265
        return -1;
      }
1266
      mInfo("topic:%s, check colId:%d passed", pTopic->name, pCol->colId);
1267 1268 1269 1270 1271
    }

  NEXT:
    sdbRelease(pSdb, pTopic);
    nodesDestroyNode(pAst);
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    nodesDestroyList(pNodeList);
1273
  }
1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286
  return 0;
}

static int32_t mndCheckAlterColForStream(SMnode *pMnode, const char *stbFullName, int64_t suid, col_id_t colId) {
  SSdb *pSdb = pMnode->pSdb;
  void *pIter = NULL;
  while (1) {
    SStreamObj *pStream = NULL;
    pIter = sdbFetch(pSdb, SDB_STREAM, pIter, (void **)&pStream);
    if (pIter == NULL) break;

    SNode *pAst = NULL;
    if (nodesStringToNode(pStream->ast, &pAst) != 0) {
1287 1288 1289
      terrno = TSDB_CODE_MND_INVALID_STREAM_OPTION;
      mError("stream:%s, create ast error", pStream->name);
      sdbRelease(pSdb, pStream);
1290 1291 1292 1293 1294 1295 1296 1297 1298 1299
      return -1;
    }

    SNodeList *pNodeList = NULL;
    nodesCollectColumns((SSelectStmt *)pAst, SQL_CLAUSE_FROM, NULL, COLLECT_COL_TYPE_ALL, &pNodeList);
    SNode *pNode = NULL;
    FOREACH(pNode, pNodeList) {
      SColumnNode *pCol = (SColumnNode *)pNode;

      if (pCol->tableId != suid) {
1300
        mInfo("stream:%s, check colId:%d passed", pStream->name, pCol->colId);
1301 1302 1303 1304 1305
        goto NEXT;
      }
      if (pCol->colId > 0 && pCol->colId == colId) {
        terrno = TSDB_CODE_MND_STREAM_MUST_BE_DELETED;
        mError("stream:%s, check colId:%d conflicted", pStream->name, pCol->colId);
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        nodesDestroyNode(pAst);
        nodesDestroyList(pNodeList);
        sdbRelease(pSdb, pStream);
1309 1310
        return -1;
      }
1311
      mInfo("stream:%s, check colId:%d passed", pStream->name, pCol->colId);
1312 1313 1314 1315 1316
    }

  NEXT:
    sdbRelease(pSdb, pStream);
    nodesDestroyNode(pAst);
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    nodesDestroyList(pNodeList);
1318 1319 1320
  }
  return 0;
}
1321

1322 1323 1324
static int32_t mndCheckAlterColForTSma(SMnode *pMnode, const char *stbFullName, int64_t suid, col_id_t colId) {
  SSdb *pSdb = pMnode->pSdb;
  void *pIter = NULL;
1325 1326 1327 1328 1329
  while (1) {
    SSmaObj *pSma = NULL;
    pIter = sdbFetch(pSdb, SDB_SMA, pIter, (void **)&pSma);
    if (pIter == NULL) break;

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    mInfo("tsma:%s, check tag and column modifiable, stb:%s suid:%" PRId64 " colId:%d, sql:%s", pSma->name, stbFullName,
          suid, colId, pSma->sql);
1332 1333 1334 1335 1336

    SNode *pAst = NULL;
    if (nodesStringToNode(pSma->ast, &pAst) != 0) {
      terrno = TSDB_CODE_SDB_INVALID_DATA_CONTENT;
      mError("tsma:%s, check tag and column modifiable, stb:%s suid:%" PRId64 " colId:%d failed since parse AST err",
1337
             pSma->name, stbFullName, suid, colId);
1338 1339 1340 1341 1342 1343 1344 1345
      return -1;
    }

    SNodeList *pNodeList = NULL;
    nodesCollectColumns((SSelectStmt *)pAst, SQL_CLAUSE_FROM, NULL, COLLECT_COL_TYPE_ALL, &pNodeList);
    SNode *pNode = NULL;
    FOREACH(pNode, pNodeList) {
      SColumnNode *pCol = (SColumnNode *)pNode;
1346
      mInfo("tsma:%s, check colId:%d tableId:%" PRId64, pSma->name, pCol->colId, pCol->tableId);
1347 1348

      if ((pCol->tableId != suid) && (pSma->stbUid != suid)) {
1349
        mInfo("tsma:%s, check colId:%d passed", pSma->name, pCol->colId);
1350
        goto NEXT;
1351 1352 1353 1354
      }
      if ((pCol->colId) > 0 && (pCol->colId == colId)) {
        terrno = TSDB_CODE_MND_FIELD_CONFLICT_WITH_TSMA;
        mError("tsma:%s, check colId:%d conflicted", pSma->name, pCol->colId);
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        nodesDestroyNode(pAst);
        nodesDestroyList(pNodeList);
        sdbRelease(pSdb, pSma);
1358 1359
        return -1;
      }
1360
      mInfo("tsma:%s, check colId:%d passed", pSma->name, pCol->colId);
1361 1362
    }

1363
  NEXT:
1364 1365
    sdbRelease(pSdb, pSma);
    nodesDestroyNode(pAst);
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    nodesDestroyList(pNodeList);
1367
  }
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
  return 0;
}

int32_t mndCheckColAndTagModifiable(SMnode *pMnode, const char *stbFullName, int64_t suid, col_id_t colId) {
  if (mndCheckAlterColForTopic(pMnode, stbFullName, suid, colId) < 0) {
    return -1;
  }
  if (mndCheckAlterColForStream(pMnode, stbFullName, suid, colId) < 0) {
    return -1;
  }
1378

1379 1380 1381
  if (mndCheckAlterColForTSma(pMnode, stbFullName, suid, colId) < 0) {
    return -1;
  }
1382 1383 1384
  return 0;
}

1385
static int32_t mndDropSuperTableTag(SMnode *pMnode, const SStbObj *pOld, SStbObj *pNew, const char *tagName) {
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  int32_t tag = mndFindSuperTableTagIndex(pOld, tagName);
  if (tag < 0) {
    terrno = TSDB_CODE_MND_TAG_NOT_EXIST;
    return -1;
  }

1392
  col_id_t colId = pOld->pTags[tag].colId;
1393
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
1394 1395 1396
    return -1;
  }

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  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  memmove(pNew->pTags + tag, pNew->pTags + tag + 1, sizeof(SSchema) * (pNew->numOfTags - tag - 1));
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  pNew->numOfTags--;
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1404
  pNew->tagVer++;
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  // if (mndDropIndexByTag(pMnode, pOld, tagName) != 0) {
  //   return -1;
  // }
1409
  mInfo("stb:%s, start to drop tag %s", pNew->name, tagName);
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  return 0;
}

1413
static int32_t mndAlterStbTagName(SMnode *pMnode, const SStbObj *pOld, SStbObj *pNew, SArray *pFields) {
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  if ((int32_t)taosArrayGetSize(pFields) != 2) {
    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
    return -1;
  }

  SField *pField0 = taosArrayGet(pFields, 0);
  SField *pField1 = taosArrayGet(pFields, 1);

  const char *oldTagName = pField0->name;
  const char *newTagName = pField1->name;

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  int32_t tag = mndFindSuperTableTagIndex(pOld, oldTagName);
  if (tag < 0) {
    terrno = TSDB_CODE_MND_TAG_NOT_EXIST;
    return -1;
  }

1431
  col_id_t colId = pOld->pTags[tag].colId;
1432
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
1433 1434 1435
    return -1;
  }

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  if (mndFindSuperTableTagIndex(pOld, newTagName) >= 0) {
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1437
    terrno = TSDB_CODE_MND_TAG_ALREADY_EXIST;
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    return -1;
  }

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  if (mndFindSuperTableColumnIndex(pOld, newTagName) >= 0) {
    terrno = TSDB_CODE_MND_COLUMN_ALREADY_EXIST;
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    return -1;
  }

  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  SSchema *pSchema = (SSchema *)(pNew->pTags + tag);
  memcpy(pSchema->name, newTagName, TSDB_COL_NAME_LEN);

1453
  pNew->tagVer++;
1454
  mInfo("stb:%s, start to modify tag %s to %s", pNew->name, oldTagName, newTagName);
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  return 0;
}

1458
static int32_t mndAlterStbTagBytes(SMnode *pMnode, const SStbObj *pOld, SStbObj *pNew, const SField *pField) {
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  int32_t tag = mndFindSuperTableTagIndex(pOld, pField->name);
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  if (tag < 0) {
    terrno = TSDB_CODE_MND_TAG_NOT_EXIST;
    return -1;
  }

1465
  col_id_t colId = pOld->pTags[tag].colId;
1466
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
1467 1468 1469
    return -1;
  }

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  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  SSchema *pTag = pNew->pTags + tag;

1476
  if (!(pTag->type == TSDB_DATA_TYPE_BINARY || pTag->type == TSDB_DATA_TYPE_NCHAR || pTag->type == TSDB_DATA_TYPE_GEOMETRY)) {
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    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
    return -1;
  }

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1481
  if (pField->bytes <= pTag->bytes) {
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    terrno = TSDB_CODE_MND_INVALID_ROW_BYTES;
    return -1;
  }

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1486
  pTag->bytes = pField->bytes;
1487
  pNew->tagVer++;
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1488

1489
  mInfo("stb:%s, start to modify tag len %s to %d", pNew->name, pField->name, pField->bytes);
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1490 1491 1492
  return 0;
}

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static int32_t mndAddSuperTableColumn(const SStbObj *pOld, SStbObj *pNew, SArray *pFields, int32_t ncols) {
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  if (pOld->numOfColumns + ncols + pOld->numOfTags > TSDB_MAX_COLUMNS) {
    terrno = TSDB_CODE_MND_TOO_MANY_COLUMNS;
    return -1;
  }

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  pNew->numOfColumns = pNew->numOfColumns + ncols;
  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

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  if(pNew->nextColId < 0 || pNew->nextColId >= 0x7fff - ncols){
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1505
    terrno = TSDB_CODE_MND_FIELD_VALUE_OVERFLOW;
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    return -1;
  }

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1509
  for (int32_t i = 0; i < ncols; i++) {
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1510
    SField *pField = taosArrayGet(pFields, i);
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1511
    if (mndFindSuperTableColumnIndex(pOld, pField->name) >= 0) {
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1512
      terrno = TSDB_CODE_MND_COLUMN_ALREADY_EXIST;
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1513 1514 1515
      return -1;
    }

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1516
    if (mndFindSuperTableTagIndex(pOld, pField->name) >= 0) {
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1517
      terrno = TSDB_CODE_MND_TAG_ALREADY_EXIST;
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1518 1519 1520
      return -1;
    }

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    SSchema *pSchema = &pNew->pColumns[pOld->numOfColumns + i];
    pSchema->bytes = pField->bytes;
    pSchema->type = pField->type;
    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
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1525 1526
    pSchema->colId = pNew->nextColId;
    pNew->nextColId++;
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1527

1528
    mInfo("stb:%s, start to add column %s", pNew->name, pSchema->name);
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1529 1530
  }

1531
  pNew->colVer++;
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  return 0;
}

1535
static int32_t mndDropSuperTableColumn(SMnode *pMnode, const SStbObj *pOld, SStbObj *pNew, const char *colName) {
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1536
  int32_t col = mndFindSuperTableColumnIndex(pOld, colName);
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1537
  if (col < 0) {
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1538 1539 1540 1541
    terrno = TSDB_CODE_MND_COLUMN_NOT_EXIST;
    return -1;
  }

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1542 1543 1544 1545 1546 1547 1548 1549 1550 1551
  if (col == 0) {
    terrno = TSDB_CODE_MND_INVALID_STB_ALTER_OPTION;
    return -1;
  }

  if (pOld->numOfColumns == 2) {
    terrno = TSDB_CODE_MND_INVALID_STB_ALTER_OPTION;
    return -1;
  }

1552
  col_id_t colId = pOld->pColumns[col].colId;
1553
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
1554 1555 1556
    return -1;
  }

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  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  memmove(pNew->pColumns + col, pNew->pColumns + col + 1, sizeof(SSchema) * (pNew->numOfColumns - col - 1));
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  pNew->numOfColumns--;
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1563

1564
  pNew->colVer++;
1565
  mInfo("stb:%s, start to drop col %s", pNew->name, colName);
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  return 0;
}

1569
static int32_t mndAlterStbColumnBytes(SMnode *pMnode, const SStbObj *pOld, SStbObj *pNew, const SField *pField) {
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1570
  int32_t col = mndFindSuperTableColumnIndex(pOld, pField->name);
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  if (col < 0) {
    terrno = TSDB_CODE_MND_COLUMN_NOT_EXIST;
    return -1;
  }

  uint32_t nLen = 0;
  for (int32_t i = 0; i < pOld->numOfColumns; ++i) {
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    nLen += (pOld->pColumns[i].colId == col) ? pField->bytes : pOld->pColumns[i].bytes;
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  }

  if (nLen > TSDB_MAX_BYTES_PER_ROW) {
    terrno = TSDB_CODE_MND_INVALID_ROW_BYTES;
    return -1;
  }

1586
  col_id_t colId = pOld->pColumns[col].colId;
1587
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
1588 1589 1590
    return -1;
  }

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  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  SSchema *pCol = pNew->pColumns + col;
1596
  if (!(pCol->type == TSDB_DATA_TYPE_BINARY || pCol->type == TSDB_DATA_TYPE_NCHAR || pCol->type == TSDB_DATA_TYPE_GEOMETRY)) {
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    terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
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    return -1;
  }

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  if (pField->bytes <= pCol->bytes) {
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    terrno = TSDB_CODE_MND_INVALID_ROW_BYTES;
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    return -1;
  }

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  pCol->bytes = pField->bytes;
1607
  pNew->colVer++;
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1609
  mInfo("stb:%s, start to modify col len %s to %d", pNew->name, pField->name, pField->bytes);
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  return 0;
}

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static int32_t mndSetAlterStbRedoLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
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  SSdbRaw *pRedoRaw = mndStbActionEncode(pStb);
  if (pRedoRaw == NULL) return -1;
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  if (mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
    sdbFreeRaw(pRedoRaw);
    return -1;
  }
1620
  if (sdbSetRawStatus(pRedoRaw, SDB_STATUS_READY) != 0) return -1;
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  return 0;
}

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static int32_t mndSetAlterStbCommitLogs(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
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  SSdbRaw *pCommitRaw = mndStbActionEncode(pStb);
  if (pCommitRaw == NULL) return -1;
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  if (mndTransAppendCommitlog(pTrans, pCommitRaw) != 0) {
    sdbFreeRaw(pCommitRaw);
    return -1;
  }
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  if (sdbSetRawStatus(pCommitRaw, SDB_STATUS_READY) != 0) return -1;

  return 0;
}

1637 1638
static int32_t mndSetAlterStbRedoActions(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb, void *alterOriData,
                                         int32_t alterOriDataLen) {
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  SSdb   *pSdb = pMnode->pSdb;
  SVgObj *pVgroup = NULL;
  void   *pIter = NULL;
  int32_t contLen;

  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;
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    if (!mndVgroupInDb(pVgroup, pDb->uid)) {
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      sdbRelease(pSdb, pVgroup);
      continue;
    }

1652
    void *pReq = mndBuildVCreateStbReq(pMnode, pVgroup, pStb, &contLen, alterOriData, alterOriDataLen);
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    if (pReq == NULL) {
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    STransAction action = {0};
    action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
    action.pCont = pReq;
    action.contLen = contLen;
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    action.msgType = TDMT_VND_ALTER_STB;
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    if (mndTransAppendRedoAction(pTrans, &action) != 0) {
1664
      taosMemoryFree(pReq);
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      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    sdbRelease(pSdb, pVgroup);
  }

  return 0;
}

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dengyihao 已提交
1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711
static int32_t mndSetAlterStbRedoActions2(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb,
                                          void *alterOriData, int32_t alterOriDataLen) {
  SSdb   *pSdb = pMnode->pSdb;
  SVgObj *pVgroup = NULL;
  void   *pIter = NULL;
  int32_t contLen;

  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;
    if (!mndVgroupInDb(pVgroup, pDb->uid)) {
      sdbRelease(pSdb, pVgroup);
      continue;
    }

    void *pReq = mndBuildVCreateStbReq(pMnode, pVgroup, pStb, &contLen, alterOriData, alterOriDataLen);
    if (pReq == NULL) {
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    STransAction action = {0};
    action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
    action.pCont = pReq;
    action.contLen = contLen;
    action.msgType = TDMT_VND_CREATE_INDEX;
    if (mndTransAppendRedoAction(pTrans, &action) != 0) {
      taosMemoryFree(pReq);
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    sdbRelease(pSdb, pVgroup);
  }

  return 0;
}
1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722
static int32_t mndBuildStbSchemaImp(SDbObj *pDb, SStbObj *pStb, const char *tbName, STableMetaRsp *pRsp) {
  taosRLockLatch(&pStb->lock);

  int32_t totalCols = pStb->numOfColumns + pStb->numOfTags;
  pRsp->pSchemas = taosMemoryCalloc(totalCols, sizeof(SSchema));
  if (pRsp->pSchemas == NULL) {
    taosRUnLockLatch(&pStb->lock);
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

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  tstrncpy(pRsp->dbFName, pStb->db, sizeof(pRsp->dbFName));
  tstrncpy(pRsp->tbName, tbName, sizeof(pRsp->tbName));
  tstrncpy(pRsp->stbName, tbName, sizeof(pRsp->stbName));
1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749
  pRsp->dbId = pDb->uid;
  pRsp->numOfTags = pStb->numOfTags;
  pRsp->numOfColumns = pStb->numOfColumns;
  pRsp->precision = pDb->cfg.precision;
  pRsp->tableType = TSDB_SUPER_TABLE;
  pRsp->sversion = pStb->colVer;
  pRsp->tversion = pStb->tagVer;
  pRsp->suid = pStb->uid;
  pRsp->tuid = pStb->uid;

  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
    SSchema *pSchema = &pRsp->pSchemas[i];
    SSchema *pSrcSchema = &pStb->pColumns[i];
    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
    pSchema->type = pSrcSchema->type;
    pSchema->colId = pSrcSchema->colId;
    pSchema->bytes = pSrcSchema->bytes;
  }

  for (int32_t i = 0; i < pStb->numOfTags; ++i) {
    SSchema *pSchema = &pRsp->pSchemas[i + pStb->numOfColumns];
    SSchema *pSrcSchema = &pStb->pTags[i];
    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
    pSchema->type = pSrcSchema->type;
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dengyihao 已提交
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    pSchema->flags = pSrcSchema->flags;
1751 1752 1753 1754 1755 1756 1757 1758
    pSchema->colId = pSrcSchema->colId;
    pSchema->bytes = pSrcSchema->bytes;
  }

  taosRUnLockLatch(&pStb->lock);
  return 0;
}

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static int32_t mndBuildStbCfgImp(SDbObj *pDb, SStbObj *pStb, const char *tbName, STableCfgRsp *pRsp) {
  taosRLockLatch(&pStb->lock);

  int32_t totalCols = pStb->numOfColumns + pStb->numOfTags;
  pRsp->pSchemas = taosMemoryCalloc(totalCols, sizeof(SSchema));
  if (pRsp->pSchemas == NULL) {
    taosRUnLockLatch(&pStb->lock);
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }

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  tstrncpy(pRsp->dbFName, pStb->db, sizeof(pRsp->dbFName));
  tstrncpy(pRsp->tbName, tbName, sizeof(pRsp->tbName));
  tstrncpy(pRsp->stbName, tbName, sizeof(pRsp->stbName));
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  pRsp->numOfTags = pStb->numOfTags;
  pRsp->numOfColumns = pStb->numOfColumns;
  pRsp->tableType = TSDB_SUPER_TABLE;
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  pRsp->delay1 = pStb->maxdelay[0];
  pRsp->delay2 = pStb->maxdelay[1];
  pRsp->watermark1 = pStb->watermark[0];
  pRsp->watermark2 = pStb->watermark[1];
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  pRsp->ttl = pStb->ttl;
  pRsp->commentLen = pStb->commentLen;
  if (pStb->commentLen > 0) {
1783
    pRsp->pComment = taosStrdup(pStb->comment);
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  }

  for (int32_t i = 0; i < pStb->numOfColumns; ++i) {
    SSchema *pSchema = &pRsp->pSchemas[i];
    SSchema *pSrcSchema = &pStb->pColumns[i];
    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
    pSchema->type = pSrcSchema->type;
    pSchema->colId = pSrcSchema->colId;
    pSchema->bytes = pSrcSchema->bytes;
  }

  for (int32_t i = 0; i < pStb->numOfTags; ++i) {
    SSchema *pSchema = &pRsp->pSchemas[i + pStb->numOfColumns];
    SSchema *pSrcSchema = &pStb->pTags[i];
    memcpy(pSchema->name, pSrcSchema->name, TSDB_COL_NAME_LEN);
    pSchema->type = pSrcSchema->type;
    pSchema->colId = pSrcSchema->colId;
    pSchema->bytes = pSrcSchema->bytes;
  }

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  if (pStb->numOfFuncs > 0) {
1805
    pRsp->pFuncs = taosArrayDup(pStb->pFuncs, NULL);
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  }
1807

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  taosRUnLockLatch(&pStb->lock);
  return 0;
}

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static int32_t mndBuildStbSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp,
                                 int32_t *smaVer) {
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825
  char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
  snprintf(tbFName, sizeof(tbFName), "%s.%s", dbFName, tbName);

  SDbObj *pDb = mndAcquireDb(pMnode, dbFName);
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
    return -1;
  }

  SStbObj *pStb = mndAcquireStb(pMnode, tbFName);
  if (pStb == NULL) {
    mndReleaseDb(pMnode, pDb);
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    terrno = TSDB_CODE_PAR_TABLE_NOT_EXIST;
1827 1828 1829
    return -1;
  }

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1830 1831 1832 1833
  if (smaVer) {
    *smaVer = pStb->smaVer;
  }

1834 1835 1836 1837 1838 1839
  int32_t code = mndBuildStbSchemaImp(pDb, pStb, tbName, pRsp);
  mndReleaseDb(pMnode, pDb);
  mndReleaseStb(pMnode, pStb);
  return code;
}

D
dapan1121 已提交
1840
static int32_t mndBuildStbCfg(SMnode *pMnode, const char *dbFName, const char *tbName, STableCfgRsp *pRsp) {
1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855
  char tbFName[TSDB_TABLE_FNAME_LEN] = {0};
  snprintf(tbFName, sizeof(tbFName), "%s.%s", dbFName, tbName);

  SDbObj *pDb = mndAcquireDb(pMnode, dbFName);
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
    return -1;
  }

  SStbObj *pStb = mndAcquireStb(pMnode, tbFName);
  if (pStb == NULL) {
    mndReleaseDb(pMnode, pDb);
    terrno = TSDB_CODE_PAR_TABLE_NOT_EXIST;
    return -1;
  }
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1857
  int32_t code = mndBuildStbCfgImp(pDb, pStb, tbName, pRsp);
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1859 1860 1861 1862
  mndReleaseDb(pMnode, pDb);
  mndReleaseStb(pMnode, pStb);
  return code;
}
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1864
static int32_t mndBuildSMAlterStbRsp(SDbObj *pDb, SStbObj *pObj, void **pCont, int32_t *pLen) {
1865
  int32_t       ret;
D
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1866
  SEncoder      ec = {0};
1867
  uint32_t      contLen = 0;
D
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  SMAlterStbRsp alterRsp = {0};
1869
  SName         name = {0};
1870
  tNameFromString(&name, pObj->name, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);
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  alterRsp.pMeta = taosMemoryCalloc(1, sizeof(STableMetaRsp));
  if (NULL == alterRsp.pMeta) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }
1877

1878
  ret = mndBuildStbSchemaImp(pDb, pObj, name.tname, alterRsp.pMeta);
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  if (ret) {
    tFreeSMAlterStbRsp(&alterRsp);
    return ret;
  }
1883

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  tEncodeSize(tEncodeSMAlterStbRsp, &alterRsp, contLen, ret);
  if (ret) {
    tFreeSMAlterStbRsp(&alterRsp);
    return ret;
  }

1890
  void *cont = taosMemoryMalloc(contLen);
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1891 1892 1893 1894 1895 1896 1897 1898
  tEncoderInit(&ec, cont, contLen);
  tEncodeSMAlterStbRsp(&ec, &alterRsp);
  tEncoderClear(&ec);

  tFreeSMAlterStbRsp(&alterRsp);

  *pCont = cont;
  *pLen = contLen;
1899

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  return 0;
}

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int32_t mndBuildSMCreateStbRsp(SMnode *pMnode, char *dbFName, char *stbFName, void **pCont, int32_t *pLen) {
  int32_t ret = -1;
1905 1906 1907 1908 1909 1910 1911 1912 1913
  SDbObj *pDb = mndAcquireDb(pMnode, dbFName);
  if (NULL == pDb) {
    return -1;
  }

  SStbObj *pObj = mndAcquireStb(pMnode, stbFName);
  if (NULL == pObj) {
    goto _OVER;
  }
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  SEncoder       ec = {0};
  uint32_t       contLen = 0;
1917
  SMCreateStbRsp stbRsp = {0};
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  SName          name = {0};
1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
  tNameFromString(&name, pObj->name, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);

  stbRsp.pMeta = taosMemoryCalloc(1, sizeof(STableMetaRsp));
  if (NULL == stbRsp.pMeta) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    goto _OVER;
  }

  ret = mndBuildStbSchemaImp(pDb, pObj, name.tname, stbRsp.pMeta);
  if (ret) {
    tFreeSMCreateStbRsp(&stbRsp);
    goto _OVER;
  }

  tEncodeSize(tEncodeSMCreateStbRsp, &stbRsp, contLen, ret);
  if (ret) {
    tFreeSMCreateStbRsp(&stbRsp);
    goto _OVER;
  }

  void *cont = taosMemoryMalloc(contLen);
  tEncoderInit(&ec, cont, contLen);
  tEncodeSMCreateStbRsp(&ec, &stbRsp);
  tEncoderClear(&ec);

  tFreeSMCreateStbRsp(&stbRsp);

  *pCont = cont;
  *pLen = contLen;

  ret = 0;
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1951 1952 1953 1954
_OVER:
  if (pObj) {
    mndReleaseStb(pMnode, pObj);
  }
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1956 1957 1958 1959 1960 1961 1962
  if (pDb) {
    mndReleaseDb(pMnode, pDb);
  }

  return ret;
}

1963 1964
static int32_t mndAlterStbImp(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb, bool needRsp,
                              void *alterOriData, int32_t alterOriDataLen) {
1965
  int32_t code = -1;
1966
  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_DB_INSIDE, pReq, "alter-stb");
1967 1968
  if (pTrans == NULL) goto _OVER;

1969
  mInfo("trans:%d, used to alter stb:%s", pTrans->id, pStb->name);
1970
  mndTransSetDbName(pTrans, pDb->name, pStb->name);
1971
  if (mndTrancCheckConflict(pMnode, pTrans) != 0) goto _OVER;
1972 1973 1974 1975 1976 1977 1978 1979 1980 1981

  if (needRsp) {
    void   *pCont = NULL;
    int32_t contLen = 0;
    if (mndBuildSMAlterStbRsp(pDb, pStb, &pCont, &contLen) != 0) goto _OVER;
    mndTransSetRpcRsp(pTrans, pCont, contLen);
  }

  if (mndSetAlterStbRedoLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
  if (mndSetAlterStbCommitLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
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wmmhello 已提交
1982
  if (mndSetAlterStbRedoActions(pMnode, pTrans, pDb, pStb, alterOriData, alterOriDataLen) != 0) goto _OVER;
1983 1984 1985 1986 1987 1988 1989 1990 1991
  if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;

  code = 0;

_OVER:
  mndTransDrop(pTrans);
  return code;
}

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dengyihao 已提交
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
static int32_t mndAlterStbAndUpdateTagIdxImp(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb, bool needRsp,
                                             void *alterOriData, int32_t alterOriDataLen, const SMAlterStbReq *pAlter) {
  int32_t code = -1;
  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_DB_INSIDE, pReq, "alter-stb");
  if (pTrans == NULL) goto _OVER;

  mInfo("trans:%d, used to alter stb:%s", pTrans->id, pStb->name);
  mndTransSetDbName(pTrans, pDb->name, pStb->name);

  if (mndTrancCheckConflict(pMnode, pTrans) != 0) goto _OVER;

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  if (needRsp) {
    void   *pCont = NULL;
    int32_t contLen = 0;
    if (mndBuildSMAlterStbRsp(pDb, pStb, &pCont, &contLen) != 0) goto _OVER;
    mndTransSetRpcRsp(pTrans, pCont, contLen);
  }

dengyihao's avatar
dengyihao 已提交
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059
  if (pAlter->alterType == TSDB_ALTER_TABLE_DROP_TAG) {
    SIdxObj idxObj = {0};
    SField *pField0 = taosArrayGet(pAlter->pFields, 0);
    bool    exist = false;
    if (mndGetIdxsByTagName(pMnode, pStb, pField0->name, &idxObj) == 0) {
      exist = true;
    }
    if (mndSetAlterStbRedoLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
    if (mndSetAlterStbCommitLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;

    if (exist == true) {
      if (mndSetDropIdxRedoLogs(pMnode, pTrans, &idxObj) != 0) goto _OVER;
      if (mndSetDropIdxCommitLogs(pMnode, pTrans, &idxObj) != 0) goto _OVER;
    }

    if (mndSetAlterStbRedoActions(pMnode, pTrans, pDb, pStb, alterOriData, alterOriDataLen) != 0) goto _OVER;
    if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;

  } else if (pAlter->alterType == TSDB_ALTER_TABLE_UPDATE_TAG_NAME) {
    SIdxObj     idxObj = {0};
    SField     *pField0 = taosArrayGet(pAlter->pFields, 0);
    SField     *pField1 = taosArrayGet(pAlter->pFields, 1);
    const char *oTagName = pField0->name;
    const char *nTagName = pField1->name;
    bool        exist = false;

    if (mndGetIdxsByTagName(pMnode, pStb, pField0->name, &idxObj) == 0) {
      exist = true;
    }

    if (mndSetAlterStbRedoLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
    if (mndSetAlterStbCommitLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;

    if (exist == true) {
      memcpy(idxObj.colName, nTagName, strlen(nTagName));
      idxObj.colName[strlen(nTagName)] = 0;
      if (mndSetAlterIdxRedoLogs(pMnode, pTrans, &idxObj) != 0) goto _OVER;
      if (mndSetAlterIdxCommitLogs(pMnode, pTrans, &idxObj) != 0) goto _OVER;
    }

    if (mndSetAlterStbRedoActions(pMnode, pTrans, pDb, pStb, alterOriData, alterOriDataLen) != 0) goto _OVER;
    if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
  }
  code = 0;

_OVER:
  mndTransDrop(pTrans);
  return code;
}

2060
static int32_t mndAlterStb(SMnode *pMnode, SRpcMsg *pReq, const SMAlterStbReq *pAlter, SDbObj *pDb, SStbObj *pOld) {
2061 2062 2063 2064
  bool    needRsp = true;
  int32_t code = -1;
  SField *pField0 = NULL;

S
Shengliang Guan 已提交
2065 2066 2067
  SStbObj stbObj = {0};
  taosRLockLatch(&pOld->lock);
  memcpy(&stbObj, pOld, sizeof(SStbObj));
2068
  taosRUnLockLatch(&pOld->lock);
S
Shengliang Guan 已提交
2069 2070 2071
  stbObj.pColumns = NULL;
  stbObj.pTags = NULL;
  stbObj.updateTime = taosGetTimestampMs();
D
dapan1121 已提交
2072
  stbObj.lock = 0;
dengyihao's avatar
dengyihao 已提交
2073
  bool updateTagIndex = false;
S
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2074
  switch (pAlter->alterType) {
S
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2075
    case TSDB_ALTER_TABLE_ADD_TAG:
S
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2076
      code = mndAddSuperTableTag(pOld, &stbObj, pAlter->pFields, pAlter->numOfFields);
S
Shengliang Guan 已提交
2077
      break;
S
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2078
    case TSDB_ALTER_TABLE_DROP_TAG:
2079
      pField0 = taosArrayGet(pAlter->pFields, 0);
2080
      code = mndDropSuperTableTag(pMnode, pOld, &stbObj, pField0->name);
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dengyihao 已提交
2081
      updateTagIndex = true;
S
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2082
      break;
S
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2083
    case TSDB_ALTER_TABLE_UPDATE_TAG_NAME:
2084
      code = mndAlterStbTagName(pMnode, pOld, &stbObj, pAlter->pFields);
dengyihao's avatar
dengyihao 已提交
2085
      updateTagIndex = true;
S
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2086
      break;
S
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2087
    case TSDB_ALTER_TABLE_UPDATE_TAG_BYTES:
2088
      pField0 = taosArrayGet(pAlter->pFields, 0);
2089
      code = mndAlterStbTagBytes(pMnode, pOld, &stbObj, pField0);
S
Shengliang Guan 已提交
2090 2091
      break;
    case TSDB_ALTER_TABLE_ADD_COLUMN:
S
Shengliang Guan 已提交
2092
      code = mndAddSuperTableColumn(pOld, &stbObj, pAlter->pFields, pAlter->numOfFields);
S
Shengliang Guan 已提交
2093 2094
      break;
    case TSDB_ALTER_TABLE_DROP_COLUMN:
2095
      pField0 = taosArrayGet(pAlter->pFields, 0);
2096
      code = mndDropSuperTableColumn(pMnode, pOld, &stbObj, pField0->name);
S
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2097
      break;
S
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2098
    case TSDB_ALTER_TABLE_UPDATE_COLUMN_BYTES:
2099
      pField0 = taosArrayGet(pAlter->pFields, 0);
2100
      code = mndAlterStbColumnBytes(pMnode, pOld, &stbObj, pField0);
S
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2101
      break;
2102
    case TSDB_ALTER_TABLE_UPDATE_OPTIONS:
D
dapan1121 已提交
2103
      needRsp = false;
S
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2104
      code = mndUpdateStbCommentAndTTL(pOld, &stbObj, pAlter->comment, pAlter->commentLen, pAlter->ttl);
2105
      break;
S
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2106
    default:
D
dapan1121 已提交
2107
      needRsp = false;
S
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2108
      terrno = TSDB_CODE_OPS_NOT_SUPPORT;
S
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2109 2110 2111
      break;
  }

2112
  if (code != 0) goto _OVER;
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2113 2114 2115 2116 2117
  if (updateTagIndex == false) {
    code = mndAlterStbImp(pMnode, pReq, pDb, &stbObj, needRsp, pReq->pCont, pReq->contLen);
  } else {
    code = mndAlterStbAndUpdateTagIdxImp(pMnode, pReq, pDb, &stbObj, needRsp, pReq->pCont, pReq->contLen, pAlter);
  }
S
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2118

2119
_OVER:
2120 2121
  taosMemoryFreeClear(stbObj.pTags);
  taosMemoryFreeClear(stbObj.pColumns);
2122 2123 2124
  if (pAlter->commentLen > 0) {
    taosMemoryFreeClear(stbObj.comment);
  }
S
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2125 2126
  return code;
}
S
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2127

2128
static int32_t mndProcessAlterStbReq(SRpcMsg *pReq) {
2129
  SMnode       *pMnode = pReq->info.node;
S
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2130 2131 2132 2133
  int32_t       code = -1;
  SDbObj       *pDb = NULL;
  SStbObj      *pStb = NULL;
  SMAlterStbReq alterReq = {0};
S
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2134

2135
  if (tDeserializeSMAlterStbReq(pReq->pCont, pReq->contLen, &alterReq) != 0) {
S
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2136
    terrno = TSDB_CODE_INVALID_MSG;
2137
    goto _OVER;
S
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2138
  }
S
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2139

2140
  mInfo("stb:%s, start to alter", alterReq.name);
2141
  if (mndCheckAlterStbReq(&alterReq) != 0) goto _OVER;
S
Shengliang Guan 已提交
2142

S
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2143
  pDb = mndAcquireDbByStb(pMnode, alterReq.name);
S
Shengliang Guan 已提交
2144 2145
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_INVALID_DB;
2146
    goto _OVER;
S
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2147 2148
  }

S
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2149
  pStb = mndAcquireStb(pMnode, alterReq.name);
S
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2150 2151
  if (pStb == NULL) {
    terrno = TSDB_CODE_MND_STB_NOT_EXIST;
2152
    goto _OVER;
S
Shengliang Guan 已提交
2153
  }
S
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2154

2155
  if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_WRITE_DB, pDb) != 0) {
2156
    goto _OVER;
S
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2157 2158
  }

S
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2159
  code = mndAlterStb(pMnode, pReq, &alterReq, pDb, pStb);
2160
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
S
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2161

2162
_OVER:
2163
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
S
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2164
    mError("stb:%s, failed to alter since %s", alterReq.name, terrstr());
S
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2165 2166
  }

S
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2167 2168
  mndReleaseStb(pMnode, pStb);
  mndReleaseDb(pMnode, pDb);
2169
  tFreeSMAltertbReq(&alterReq);
S
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2170 2171

  return code;
S
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2172
}
2173

S
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2174 2175 2176
static int32_t mndSetDropStbRedoLogs(SMnode *pMnode, STrans *pTrans, SStbObj *pStb) {
  SSdbRaw *pRedoRaw = mndStbActionEncode(pStb);
  if (pRedoRaw == NULL) return -1;
S
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2177 2178 2179 2180
  if (mndTransAppendRedolog(pTrans, pRedoRaw) != 0) {
    sdbFreeRaw(pRedoRaw);
    return -1;
  }
S
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2181 2182 2183 2184 2185 2186 2187 2188
  if (sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPING) != 0) return -1;

  return 0;
}

static int32_t mndSetDropStbCommitLogs(SMnode *pMnode, STrans *pTrans, SStbObj *pStb) {
  SSdbRaw *pCommitRaw = mndStbActionEncode(pStb);
  if (pCommitRaw == NULL) return -1;
S
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2189 2190 2191 2192
  if (mndTransAppendCommitlog(pTrans, pCommitRaw) != 0) {
    sdbFreeRaw(pCommitRaw);
    return -1;
  }
S
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2193 2194 2195 2196 2197
  if (sdbSetRawStatus(pCommitRaw, SDB_STATUS_DROPPED) != 0) return -1;

  return 0;
}

S
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2198 2199 2200 2201
static int32_t mndSetDropStbRedoActions(SMnode *pMnode, STrans *pTrans, SDbObj *pDb, SStbObj *pStb) {
  SSdb   *pSdb = pMnode->pSdb;
  SVgObj *pVgroup = NULL;
  void   *pIter = NULL;
S
Shengliang Guan 已提交
2202

S
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2203 2204 2205
  while (1) {
    pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
    if (pIter == NULL) break;
S
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2206
    if (!mndVgroupInDb(pVgroup, pDb->uid)) {
S
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2207 2208 2209 2210
      sdbRelease(pSdb, pVgroup);
      continue;
    }

S
Shengliang Guan 已提交
2211
    int32_t contLen = 0;
S
Shengliang Guan 已提交
2212
    void   *pReq = mndBuildVDropStbReq(pMnode, pVgroup, pStb, &contLen);
S
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2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224
    if (pReq == NULL) {
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      terrno = TSDB_CODE_OUT_OF_MEMORY;
      return -1;
    }

    STransAction action = {0};
    action.epSet = mndGetVgroupEpset(pMnode, pVgroup);
    action.pCont = pReq;
    action.contLen = contLen;
    action.msgType = TDMT_VND_DROP_STB;
S
Shengliang Guan 已提交
2225
    action.acceptableCode = TSDB_CODE_TDB_STB_NOT_EXIST;
S
Shengliang Guan 已提交
2226
    if (mndTransAppendRedoAction(pTrans, &action) != 0) {
2227
      taosMemoryFree(pReq);
S
Shengliang Guan 已提交
2228 2229 2230 2231 2232 2233 2234 2235 2236 2237
      sdbCancelFetch(pSdb, pIter);
      sdbRelease(pSdb, pVgroup);
      return -1;
    }
    sdbRelease(pSdb, pVgroup);
  }

  return 0;
}

2238
static int32_t mndDropStb(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb) {
S
Shengliang Guan 已提交
2239
  int32_t code = -1;
2240
  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_DB_INSIDE, pReq, "drop-stb");
2241
  if (pTrans == NULL) goto _OVER;
S
Shengliang Guan 已提交
2242

2243
  mInfo("trans:%d, used to drop stb:%s", pTrans->id, pStb->name);
2244
  mndTransSetDbName(pTrans, pDb->name, pStb->name);
2245
  if (mndTrancCheckConflict(pMnode, pTrans) != 0) goto _OVER;
S
Shengliang Guan 已提交
2246

2247 2248 2249
  if (mndSetDropStbRedoLogs(pMnode, pTrans, pStb) != 0) goto _OVER;
  if (mndSetDropStbCommitLogs(pMnode, pTrans, pStb) != 0) goto _OVER;
  if (mndSetDropStbRedoActions(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
dengyihao's avatar
dengyihao 已提交
2250
  if (mndDropIdxsByStb(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
2251
  if (mndDropSmasByStb(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
2252
  if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;
S
Shengliang Guan 已提交
2253 2254
  code = 0;

2255
_OVER:
S
Shengliang Guan 已提交
2256
  mndTransDrop(pTrans);
S
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2257
  return code;
S
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2258 2259
}

2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274
static int32_t mndCheckDropStbForTopic(SMnode *pMnode, const char *stbFullName, int64_t suid) {
  SSdb *pSdb = pMnode->pSdb;
  void *pIter = NULL;
  while (1) {
    SMqTopicObj *pTopic = NULL;
    pIter = sdbFetch(pSdb, SDB_TOPIC, pIter, (void **)&pTopic);
    if (pIter == NULL) break;

    if (pTopic->subType == TOPIC_SUB_TYPE__TABLE) {
      if (pTopic->stbUid == suid) {
        sdbRelease(pSdb, pTopic);
        return -1;
      }
    }

2275
    if (pTopic->ast == NULL) {
2276 2277 2278 2279 2280 2281
      sdbRelease(pSdb, pTopic);
      continue;
    }

    SNode *pAst = NULL;
    if (nodesStringToNode(pTopic->ast, &pAst) != 0) {
2282 2283 2284
      terrno = TSDB_CODE_MND_INVALID_TOPIC_OPTION;
      mError("topic:%s, create ast error", pTopic->name);
      sdbRelease(pSdb, pTopic);
2285 2286 2287 2288 2289 2290 2291 2292 2293
      return -1;
    }

    SNodeList *pNodeList = NULL;
    nodesCollectColumns((SSelectStmt *)pAst, SQL_CLAUSE_FROM, NULL, COLLECT_COL_TYPE_ALL, &pNodeList);
    SNode *pNode = NULL;
    FOREACH(pNode, pNodeList) {
      SColumnNode *pCol = (SColumnNode *)pNode;

2294
      if (pCol->tableId == suid) {
2295 2296
        sdbRelease(pSdb, pTopic);
        nodesDestroyNode(pAst);
L
Liu Jicong 已提交
2297
        nodesDestroyList(pNodeList);
2298 2299 2300 2301 2302 2303 2304 2305
        return -1;
      } else {
        goto NEXT;
      }
    }
  NEXT:
    sdbRelease(pSdb, pTopic);
    nodesDestroyNode(pAst);
L
Liu Jicong 已提交
2306
    nodesDestroyList(pNodeList);
2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318
  }
  return 0;
}

static int32_t mndCheckDropStbForStream(SMnode *pMnode, const char *stbFullName, int64_t suid) {
  SSdb *pSdb = pMnode->pSdb;
  void *pIter = NULL;
  while (1) {
    SStreamObj *pStream = NULL;
    pIter = sdbFetch(pSdb, SDB_STREAM, pIter, (void **)&pStream);
    if (pIter == NULL) break;

2319 2320 2321 2322 2323 2324
    if (pStream->smaId != 0) {
      sdbRelease(pSdb, pStream);
      continue;
    }

    if (pStream->targetStbUid == suid) {
2325 2326 2327 2328
      sdbRelease(pSdb, pStream);
      return -1;
    }

2329 2330
    SNode *pAst = NULL;
    if (nodesStringToNode(pStream->ast, &pAst) != 0) {
2331 2332 2333
      terrno = TSDB_CODE_MND_INVALID_STREAM_OPTION;
      mError("stream:%s, create ast error", pStream->name);
      sdbRelease(pSdb, pStream);
2334 2335 2336 2337 2338 2339 2340 2341 2342
      return -1;
    }

    SNodeList *pNodeList = NULL;
    nodesCollectColumns((SSelectStmt *)pAst, SQL_CLAUSE_FROM, NULL, COLLECT_COL_TYPE_ALL, &pNodeList);
    SNode *pNode = NULL;
    FOREACH(pNode, pNodeList) {
      SColumnNode *pCol = (SColumnNode *)pNode;

2343
      if (pCol->tableId == suid) {
2344 2345
        sdbRelease(pSdb, pStream);
        nodesDestroyNode(pAst);
L
Liu Jicong 已提交
2346
        nodesDestroyList(pNodeList);
2347 2348 2349 2350 2351 2352 2353 2354
        return -1;
      } else {
        goto NEXT;
      }
    }
  NEXT:
    sdbRelease(pSdb, pStream);
    nodesDestroyNode(pAst);
L
Liu Jicong 已提交
2355
    nodesDestroyList(pNodeList);
2356 2357 2358 2359
  }
  return 0;
}

dengyihao's avatar
dengyihao 已提交
2360
static int32_t mndProcessDropTtltbReq(SRpcMsg *pRsp) { return 0; }
2361

2362
static int32_t mndProcessDropStbReq(SRpcMsg *pReq) {
2363
  SMnode      *pMnode = pReq->info.node;
S
Shengliang Guan 已提交
2364 2365 2366
  int32_t      code = -1;
  SDbObj      *pDb = NULL;
  SStbObj     *pStb = NULL;
S
Shengliang Guan 已提交
2367
  SMDropStbReq dropReq = {0};
S
Shengliang Guan 已提交
2368

2369
  if (tDeserializeSMDropStbReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
S
Shengliang Guan 已提交
2370
    terrno = TSDB_CODE_INVALID_MSG;
2371
    goto _OVER;
S
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2372
  }
S
Shengliang Guan 已提交
2373

2374
  mInfo("stb:%s, start to drop", dropReq.name);
S
Shengliang Guan 已提交
2375

S
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2376
  pStb = mndAcquireStb(pMnode, dropReq.name);
S
Shengliang Guan 已提交
2377
  if (pStb == NULL) {
S
Shengliang Guan 已提交
2378
    if (dropReq.igNotExists) {
2379
      mInfo("stb:%s, not exist, ignore not exist is set", dropReq.name);
S
Shengliang Guan 已提交
2380
      code = 0;
2381
      goto _OVER;
S
Shengliang Guan 已提交
2382 2383
    } else {
      terrno = TSDB_CODE_MND_STB_NOT_EXIST;
2384
      goto _OVER;
S
Shengliang Guan 已提交
2385 2386 2387
    }
  }

wmmhello's avatar
wmmhello 已提交
2388 2389
  if (dropReq.source == TD_REQ_FROM_TAOX && pStb->uid != dropReq.suid) {
    code = 0;
2390 2391 2392
    goto _OVER;
  }

S
Shengliang Guan 已提交
2393
  pDb = mndAcquireDbByStb(pMnode, dropReq.name);
S
Shengliang Guan 已提交
2394 2395
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
2396
    goto _OVER;
S
Shengliang Guan 已提交
2397 2398
  }

2399
  if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_WRITE_DB, pDb) != 0) {
2400
    goto _OVER;
S
Shengliang Guan 已提交
2401 2402
  }

2403 2404 2405 2406 2407 2408 2409 2410 2411 2412
  if (mndCheckDropStbForTopic(pMnode, dropReq.name, pStb->uid) < 0) {
    terrno = TSDB_CODE_MND_TOPIC_MUST_BE_DELETED;
    goto _OVER;
  }

  if (mndCheckDropStbForStream(pMnode, dropReq.name, pStb->uid) < 0) {
    terrno = TSDB_CODE_MND_STREAM_MUST_BE_DELETED;
    goto _OVER;
  }

S
Shengliang Guan 已提交
2413
  code = mndDropStb(pMnode, pReq, pDb, pStb);
2414
  if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
S
Shengliang Guan 已提交
2415

2416
_OVER:
2417
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
S
Shengliang Guan 已提交
2418
    mError("stb:%s, failed to drop since %s", dropReq.name, terrstr());
S
Shengliang Guan 已提交
2419 2420
  }

S
Shengliang Guan 已提交
2421 2422 2423
  mndReleaseDb(pMnode, pDb);
  mndReleaseStb(pMnode, pStb);
  return code;
S
Shengliang Guan 已提交
2424
}
2425

2426 2427
static int32_t mndProcessTableMetaReq(SRpcMsg *pReq) {
  SMnode       *pMnode = pReq->info.node;
S
Shengliang Guan 已提交
2428 2429 2430
  int32_t       code = -1;
  STableInfoReq infoReq = {0};
  STableMetaRsp metaRsp = {0};
D
dapan 已提交
2431

2432 2433 2434 2435
  SUserObj *pUser = mndAcquireUser(pMnode, pReq->info.conn.user);
  if (pUser == NULL) return 0;
  bool sysinfo = pUser->sysInfo;

2436
  if (tDeserializeSTableInfoReq(pReq->pCont, pReq->contLen, &infoReq) != 0) {
S
Shengliang Guan 已提交
2437
    terrno = TSDB_CODE_INVALID_MSG;
2438
    goto _OVER;
S
Shengliang Guan 已提交
2439
  }
D
dapan 已提交
2440

D
dapan1121 已提交
2441
  if (0 == strcmp(infoReq.dbFName, TSDB_INFORMATION_SCHEMA_DB)) {
2442
    mInfo("information_schema table:%s.%s, start to retrieve meta", infoReq.dbFName, infoReq.tbName);
2443
    if (mndBuildInsTableSchema(pMnode, infoReq.dbFName, infoReq.tbName, sysinfo, &metaRsp) != 0) {
2444
      goto _OVER;
D
dapan1121 已提交
2445
    }
D
dapan1121 已提交
2446
  } else if (0 == strcmp(infoReq.dbFName, TSDB_PERFORMANCE_SCHEMA_DB)) {
2447
    mInfo("performance_schema table:%s.%s, start to retrieve meta", infoReq.dbFName, infoReq.tbName);
D
dapan1121 已提交
2448
    if (mndBuildPerfsTableSchema(pMnode, infoReq.dbFName, infoReq.tbName, &metaRsp) != 0) {
2449
      goto _OVER;
D
dapan1121 已提交
2450
    }
D
dapan1121 已提交
2451
  } else {
2452
    mInfo("stb:%s.%s, start to retrieve meta", infoReq.dbFName, infoReq.tbName);
D
dapan1121 已提交
2453
    if (mndBuildStbSchema(pMnode, infoReq.dbFName, infoReq.tbName, &metaRsp, NULL) != 0) {
2454
      goto _OVER;
D
dapan1121 已提交
2455
    }
S
Shengliang Guan 已提交
2456
  }
S
Shengliang Guan 已提交
2457

S
Shengliang Guan 已提交
2458 2459 2460
  int32_t rspLen = tSerializeSTableMetaRsp(NULL, 0, &metaRsp);
  if (rspLen < 0) {
    terrno = TSDB_CODE_INVALID_MSG;
2461
    goto _OVER;
S
Shengliang Guan 已提交
2462
  }
S
Shengliang Guan 已提交
2463

S
Shengliang Guan 已提交
2464
  void *pRsp = rpcMallocCont(rspLen);
S
Shengliang Guan 已提交
2465 2466
  if (pRsp == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
2467
    goto _OVER;
S
Shengliang Guan 已提交
2468
  }
D
dapan 已提交
2469

S
Shengliang Guan 已提交
2470
  tSerializeSTableMetaRsp(pRsp, rspLen, &metaRsp);
2471 2472
  pReq->info.rsp = pRsp;
  pReq->info.rspLen = rspLen;
S
Shengliang Guan 已提交
2473
  code = 0;
S
Shengliang Guan 已提交
2474

2475
  mTrace("%s.%s, meta is retrieved", infoReq.dbFName, infoReq.tbName);
D
dapan 已提交
2476

2477
_OVER:
S
Shengliang Guan 已提交
2478 2479 2480
  if (code != 0) {
    mError("stb:%s.%s, failed to retrieve meta since %s", infoReq.dbFName, infoReq.tbName, terrstr());
  }
S
Shengliang Guan 已提交
2481

2482
  mndReleaseUser(pMnode, pUser);
S
Shengliang Guan 已提交
2483 2484 2485
  tFreeSTableMetaRsp(&metaRsp);
  return code;
}
S
Shengliang Guan 已提交
2486

D
dapan1121 已提交
2487
static int32_t mndProcessTableCfgReq(SRpcMsg *pReq) {
2488 2489 2490 2491
  SMnode      *pMnode = pReq->info.node;
  int32_t      code = -1;
  STableCfgReq cfgReq = {0};
  STableCfgRsp cfgRsp = {0};
D
dapan1121 已提交
2492 2493 2494 2495 2496 2497 2498

  if (tDeserializeSTableCfgReq(pReq->pCont, pReq->contLen, &cfgReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    goto _OVER;
  }

  if (0 == strcmp(cfgReq.dbFName, TSDB_INFORMATION_SCHEMA_DB)) {
2499
    mInfo("information_schema table:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
D
dapan1121 已提交
2500 2501 2502 2503
    if (mndBuildInsTableCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
      goto _OVER;
    }
  } else if (0 == strcmp(cfgReq.dbFName, TSDB_PERFORMANCE_SCHEMA_DB)) {
2504
    mInfo("performance_schema table:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
D
dapan1121 已提交
2505 2506 2507 2508
    if (mndBuildPerfsTableCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
      goto _OVER;
    }
  } else {
2509
    mInfo("stb:%s.%s, start to retrieve cfg", cfgReq.dbFName, cfgReq.tbName);
D
dapan1121 已提交
2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542
    if (mndBuildStbCfg(pMnode, cfgReq.dbFName, cfgReq.tbName, &cfgRsp) != 0) {
      goto _OVER;
    }
  }

  int32_t rspLen = tSerializeSTableCfgRsp(NULL, 0, &cfgRsp);
  if (rspLen < 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    goto _OVER;
  }

  void *pRsp = rpcMallocCont(rspLen);
  if (pRsp == NULL) {
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    goto _OVER;
  }

  tSerializeSTableCfgRsp(pRsp, rspLen, &cfgRsp);
  pReq->info.rsp = pRsp;
  pReq->info.rspLen = rspLen;
  code = 0;

  mTrace("%s.%s, cfg is retrieved", cfgReq.dbFName, cfgReq.tbName);

_OVER:
  if (code != 0) {
    mError("stb:%s.%s, failed to retrieve cfg since %s", cfgReq.dbFName, cfgReq.tbName, terrstr());
  }

  tFreeSTableCfgRsp(&cfgRsp);
  return code;
}

D
dapan1121 已提交
2543
int32_t mndValidateStbInfo(SMnode *pMnode, SSTableVersion *pStbVersions, int32_t numOfStbs, void **ppRsp,
S
Shengliang Guan 已提交
2544
                           int32_t *pRspLen) {
D
dapan1121 已提交
2545
  SSTbHbRsp hbRsp = {0};
D
dapan1121 已提交
2546 2547
  hbRsp.pMetaRsp = taosArrayInit(numOfStbs, sizeof(STableMetaRsp));
  if (hbRsp.pMetaRsp == NULL) {
S
Shengliang Guan 已提交
2548 2549 2550
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }
S
Shengliang Guan 已提交
2551

D
dapan1121 已提交
2552
  hbRsp.pIndexRsp = taosArrayInit(numOfStbs, sizeof(STableIndexRsp));
D
dapan1121 已提交
2553
  if (NULL == hbRsp.pIndexRsp) {
D
dapan1121 已提交
2554
    taosArrayDestroy(hbRsp.pMetaRsp);
D
dapan1121 已提交
2555 2556 2557
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
  }
L
Liu Jicong 已提交
2558

S
Shengliang Guan 已提交
2559
  for (int32_t i = 0; i < numOfStbs; ++i) {
D
dapan1121 已提交
2560
    SSTableVersion *pStbVersion = &pStbVersions[i];
S
Shengliang Guan 已提交
2561 2562 2563
    pStbVersion->suid = be64toh(pStbVersion->suid);
    pStbVersion->sversion = ntohs(pStbVersion->sversion);
    pStbVersion->tversion = ntohs(pStbVersion->tversion);
D
dapan1121 已提交
2564
    pStbVersion->smaVer = ntohl(pStbVersion->smaVer);
S
Shengliang Guan 已提交
2565

S
Shengliang Guan 已提交
2566
    STableMetaRsp metaRsp = {0};
L
Liu Jicong 已提交
2567
    int32_t       smaVer = 0;
2568
    mInfo("stb:%s.%s, start to retrieve meta", pStbVersion->dbFName, pStbVersion->stbName);
D
dapan1121 已提交
2569
    if (mndBuildStbSchema(pMnode, pStbVersion->dbFName, pStbVersion->stbName, &metaRsp, &smaVer) != 0) {
S
Shengliang Guan 已提交
2570 2571
      metaRsp.numOfColumns = -1;
      metaRsp.suid = pStbVersion->suid;
2572 2573 2574
      tstrncpy(metaRsp.dbFName, pStbVersion->dbFName, sizeof(metaRsp.dbFName));
      tstrncpy(metaRsp.tbName, pStbVersion->stbName, sizeof(metaRsp.tbName));
      tstrncpy(metaRsp.stbName, pStbVersion->stbName, sizeof(metaRsp.stbName));
D
dapan1121 已提交
2575
      taosArrayPush(hbRsp.pMetaRsp, &metaRsp);
D
dapan1121 已提交
2576
      continue;
D
dapan 已提交
2577
    }
S
Shengliang Guan 已提交
2578

D
dapan1121 已提交
2579
    if (pStbVersion->sversion != metaRsp.sversion || pStbVersion->tversion != metaRsp.tversion) {
D
dapan1121 已提交
2580
      taosArrayPush(hbRsp.pMetaRsp, &metaRsp);
D
dapan1121 已提交
2581 2582
    } else {
      tFreeSTableMetaRsp(&metaRsp);
S
Shengliang Guan 已提交
2583
    }
D
dapan1121 已提交
2584

D
dapan1121 已提交
2585
    if (pStbVersion->smaVer && pStbVersion->smaVer != smaVer) {
L
Liu Jicong 已提交
2586 2587
      bool           exist = false;
      char           tbFName[TSDB_TABLE_FNAME_LEN];
D
dapan1121 已提交
2588
      STableIndexRsp indexRsp = {0};
D
dapan1121 已提交
2589 2590 2591 2592 2593
      indexRsp.pIndex = taosArrayInit(10, sizeof(STableIndexInfo));
      if (NULL == indexRsp.pIndex) {
        terrno = TSDB_CODE_OUT_OF_MEMORY;
        return -1;
      }
L
Liu Jicong 已提交
2594

D
dapan1121 已提交
2595
      sprintf(tbFName, "%s.%s", pStbVersion->dbFName, pStbVersion->stbName);
D
dapan1121 已提交
2596
      int32_t code = mndGetTableSma(pMnode, tbFName, &indexRsp, &exist);
D
dapan1121 已提交
2597
      if (code || !exist) {
D
dapan1121 已提交
2598 2599 2600
        indexRsp.suid = pStbVersion->suid;
        indexRsp.version = -1;
        indexRsp.pIndex = NULL;
D
dapan1121 已提交
2601
      }
D
dapan1121 已提交
2602

D
dapan1121 已提交
2603 2604
      strcpy(indexRsp.dbFName, pStbVersion->dbFName);
      strcpy(indexRsp.tbName, pStbVersion->stbName);
D
dapan1121 已提交
2605 2606

      taosArrayPush(hbRsp.pIndexRsp, &indexRsp);
D
dapan1121 已提交
2607
    }
S
Shengliang Guan 已提交
2608
  }
S
Shengliang Guan 已提交
2609

D
dapan1121 已提交
2610
  int32_t rspLen = tSerializeSSTbHbRsp(NULL, 0, &hbRsp);
S
Shengliang Guan 已提交
2611
  if (rspLen < 0) {
D
dapan1121 已提交
2612
    tFreeSSTbHbRsp(&hbRsp);
S
Shengliang Guan 已提交
2613 2614
    terrno = TSDB_CODE_INVALID_MSG;
    return -1;
D
dapan 已提交
2615 2616
  }

2617
  void *pRsp = taosMemoryMalloc(rspLen);
S
Shengliang Guan 已提交
2618
  if (pRsp == NULL) {
D
dapan1121 已提交
2619
    tFreeSSTbHbRsp(&hbRsp);
S
Shengliang Guan 已提交
2620 2621
    terrno = TSDB_CODE_OUT_OF_MEMORY;
    return -1;
D
dapan 已提交
2622 2623
  }

D
dapan1121 已提交
2624 2625
  tSerializeSSTbHbRsp(pRsp, rspLen, &hbRsp);
  tFreeSSTbHbRsp(&hbRsp);
S
Shengliang Guan 已提交
2626 2627
  *ppRsp = pRsp;
  *pRspLen = rspLen;
D
dapan 已提交
2628 2629 2630
  return 0;
}

2631
int32_t mndGetNumOfStbs(SMnode *pMnode, char *dbName, int32_t *pNumOfStbs) {
S
Shengliang Guan 已提交
2632
  SSdb   *pSdb = pMnode->pSdb;
S
Shengliang Guan 已提交
2633 2634 2635 2636 2637 2638
  SDbObj *pDb = mndAcquireDb(pMnode, dbName);
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
    return -1;
  }

2639
  int32_t numOfStbs = 0;
2640
  void   *pIter = NULL;
S
Shengliang Guan 已提交
2641
  while (1) {
2642
    SStbObj *pStb = NULL;
2643
    pIter = sdbFetch(pSdb, SDB_STB, pIter, (void **)&pStb);
S
Shengliang Guan 已提交
2644 2645
    if (pIter == NULL) break;

S
Shengliang Guan 已提交
2646
    if (pStb->dbUid == pDb->uid) {
2647
      numOfStbs++;
S
Shengliang Guan 已提交
2648 2649
    }

2650
    sdbRelease(pSdb, pStb);
S
Shengliang Guan 已提交
2651 2652
  }

2653
  *pNumOfStbs = numOfStbs;
S
Shengliang Guan 已提交
2654
  mndReleaseDb(pMnode, pDb);
S
Shengliang Guan 已提交
2655 2656 2657
  return 0;
}

L
Liu Jicong 已提交
2658 2659 2660 2661 2662 2663 2664
void mndExtractDbNameFromStbFullName(const char *stbFullName, char *dst) {
  SName name = {0};
  tNameFromString(&name, stbFullName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);

  tNameGetFullDbName(&name, dst);
}

C
cademfly 已提交
2665 2666 2667 2668 2669 2670 2671
void mndExtractShortDbNameFromStbFullName(const char *stbFullName, char *dst) {
  SName name = {0};
  tNameFromString(&name, stbFullName, T_NAME_ACCT | T_NAME_DB | T_NAME_TABLE);

  tNameGetDbName(&name, dst);
}

L
Liu Jicong 已提交
2672
void mndExtractTbNameFromStbFullName(const char *stbFullName, char *dst, int32_t dstSize) {
S
Shengliang Guan 已提交
2673 2674
  int32_t pos = -1;
  int32_t num = 0;
L
Liu Jicong 已提交
2675 2676
  for (pos = 0; stbFullName[pos] != 0; ++pos) {
    if (stbFullName[pos] == TS_PATH_DELIMITER[0]) num++;
S
Shengliang Guan 已提交
2677 2678 2679 2680
    if (num == 2) break;
  }

  if (num == 2) {
L
Liu Jicong 已提交
2681
    tstrncpy(dst, stbFullName + pos + 1, dstSize);
S
Shengliang Guan 已提交
2682 2683 2684
  }
}

dengyihao's avatar
dengyihao 已提交
2685 2686 2687 2688 2689 2690
// static int32_t mndProcessRetrieveStbReq(SRpcMsg *pReq) {
//   SMnode    *pMnode = pReq->info.node;
//   SShowMgmt *pMgmt = &pMnode->showMgmt;
//   SShowObj  *pShow = NULL;
//   int32_t    rowsToRead = SHOW_STEP_SIZE;
//   int32_t    rowsRead = 0;
2691
//
dengyihao's avatar
dengyihao 已提交
2692 2693 2694 2695 2696
//   SRetrieveTableReq retrieveReq = {0};
//   if (tDeserializeSRetrieveTableReq(pReq->pCont, pReq->contLen, &retrieveReq) != 0) {
//     terrno = TSDB_CODE_INVALID_MSG;
//     return -1;
//   }
2697
//
dengyihao's avatar
dengyihao 已提交
2698 2699 2700 2701 2702
//   SMnode    *pMnode = pReq->info.node;
//   SSdb      *pSdb = pMnode->pSdb;
//   int32_t    numOfRows = 0;
//   SDbObj    *pDb = NULL;
//   ESdbStatus objStatus = 0;
2703
//
dengyihao's avatar
dengyihao 已提交
2704 2705 2706
//   SUserObj *pUser = mndAcquireUser(pMnode, pReq->info.conn.user);
//   if (pUser == NULL) return 0;
//   bool sysinfo = pUser->sysInfo;
2707
//
dengyihao's avatar
dengyihao 已提交
2708
//   // Append the information_schema database into the result.
2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769
////  if (!pShow->sysDbRsp) {
////    SDbObj infoschemaDb = {0};
////    setInformationSchemaDbCfg(pMnode, &infoschemaDb);
////    size_t numOfTables = 0;
////    getVisibleInfosTablesNum(sysinfo, &numOfTables);
////    mndDumpDbInfoData(pMnode, pBlock, &infoschemaDb, pShow, numOfRows, numOfTables, true, 0, 1);
////
////    numOfRows += 1;
////
////    SDbObj perfschemaDb = {0};
////    setPerfSchemaDbCfg(pMnode, &perfschemaDb);
////    numOfTables = 0;
////    getPerfDbMeta(NULL, &numOfTables);
////    mndDumpDbInfoData(pMnode, pBlock, &perfschemaDb, pShow, numOfRows, numOfTables, true, 0, 1);
////
////    numOfRows += 1;
////    pShow->sysDbRsp = true;
////  }
//
//  SSDataBlock* p = buildInfoSchemaTableMetaBlock(TSDB_INS_TABLE_COLS);
//  blockDataEnsureCapacity(p, rowsToRead);
//
//  size_t               size = 0;
//  const SSysTableMeta* pSysDbTableMeta = NULL;
//
//  getInfosDbMeta(&pSysDbTableMeta, &size);
//  p->info.rows = buildDbColsInfoBlock(sysinfo, p, pSysDbTableMeta, size, TSDB_INFORMATION_SCHEMA_DB);
//
//  getPerfDbMeta(&pSysDbTableMeta, &size);
//  p->info.rows = buildDbColsInfoBlock(sysinfo, p, pSysDbTableMeta, size, TSDB_PERFORMANCE_SCHEMA_DB);
//
//  blockDataDestroy(p);
//
//
//  while (numOfRows < rowsToRead) {
//    pShow->pIter = sdbFetchAll(pSdb, SDB_DB, pShow->pIter, (void **)&pDb, &objStatus, true);
//    if (pShow->pIter == NULL) break;
//    if (strncmp(retrieveReq.db, pDb->name, strlen(retrieveReq.db)) != 0){
//      continue;
//    }
//    if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_READ_OR_WRITE_DB, pDb) != 0) {
//      continue;
//    }
//
//    while (numOfRows < rowsToRead) {
//      pShow->pIter = sdbFetch(pSdb, SDB_STB, pShow->pIter, (void **)&pStb);
//      if (pShow->pIter == NULL) break;
//
//      if (pDb != NULL && pStb->dbUid != pDb->uid) {
//        sdbRelease(pSdb, pStb);
//        continue;
//      }
//
//      cols = 0;
//
//      SName name = {0};
//      char  stbName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
//      mndExtractTbNameFromStbFullName(pStb->name, &stbName[VARSTR_HEADER_SIZE], TSDB_TABLE_NAME_LEN);
//      varDataSetLen(stbName, strlen(&stbName[VARSTR_HEADER_SIZE]));
//
//      SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2770
//      colDataSetVal(pColInfo, numOfRows, (const char *)stbName, false);
2771 2772 2773 2774 2775 2776 2777
//
//      char db[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
//      tNameFromString(&name, pStb->db, T_NAME_ACCT | T_NAME_DB);
//      tNameGetDbName(&name, varDataVal(db));
//      varDataSetLen(db, strlen(varDataVal(db)));
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2778
//      colDataSetVal(pColInfo, numOfRows, (const char *)db, false);
2779 2780
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2781
//      colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->createdTime, false);
2782 2783
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2784
//      colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->numOfColumns, false);
2785 2786
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2787
//      colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->numOfTags, false);
2788 2789
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2790
//      colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->updateTime, false);  // number of tables
2791 2792 2793 2794 2795
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
//      if (pStb->commentLen > 0) {
//        char comment[TSDB_TB_COMMENT_LEN + VARSTR_HEADER_SIZE] = {0};
//        STR_TO_VARSTR(comment, pStb->comment);
2796
//        colDataSetVal(pColInfo, numOfRows, comment, false);
2797 2798 2799
//      } else if (pStb->commentLen == 0) {
//        char comment[VARSTR_HEADER_SIZE + VARSTR_HEADER_SIZE] = {0};
//        STR_TO_VARSTR(comment, "");
2800
//        colDataSetVal(pColInfo, numOfRows, comment, false);
2801
//      } else {
X
Xiaoyu Wang 已提交
2802
//        colDataSetNULL(pColInfo, numOfRows);
2803 2804 2805 2806 2807 2808 2809
//      }
//
//      char watermark[64 + VARSTR_HEADER_SIZE] = {0};
//      sprintf(varDataVal(watermark), "%" PRId64 "a,%" PRId64 "a", pStb->watermark[0], pStb->watermark[1]);
//      varDataSetLen(watermark, strlen(varDataVal(watermark)));
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2810
//      colDataSetVal(pColInfo, numOfRows, (const char *)watermark, false);
2811 2812 2813 2814 2815 2816
//
//      char maxDelay[64 + VARSTR_HEADER_SIZE] = {0};
//      sprintf(varDataVal(maxDelay), "%" PRId64 "a,%" PRId64 "a", pStb->maxdelay[0], pStb->maxdelay[1]);
//      varDataSetLen(maxDelay, strlen(varDataVal(maxDelay)));
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2817
//      colDataSetVal(pColInfo, numOfRows, (const char *)maxDelay, false);
2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835
//
//      char    rollup[160 + VARSTR_HEADER_SIZE] = {0};
//      int32_t rollupNum = (int32_t)taosArrayGetSize(pStb->pFuncs);
//      char   *sep = ", ";
//      int32_t sepLen = strlen(sep);
//      int32_t rollupLen = sizeof(rollup) - VARSTR_HEADER_SIZE - 2;
//      for (int32_t i = 0; i < rollupNum; ++i) {
//        char *funcName = taosArrayGet(pStb->pFuncs, i);
//        if (i) {
//          strncat(varDataVal(rollup), sep, rollupLen);
//          rollupLen -= sepLen;
//        }
//        strncat(varDataVal(rollup), funcName, rollupLen);
//        rollupLen -= strlen(funcName);
//      }
//      varDataSetLen(rollup, strlen(varDataVal(rollup)));
//
//      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2836
//      colDataSetVal(pColInfo, numOfRows, (const char *)rollup, false);
2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960
//
//      numOfRows++;
//      sdbRelease(pSdb, pStb);
//    }
//
//    if (pDb != NULL) {
//      mndReleaseDb(pMnode, pDb);
//    }
//
//    sdbRelease(pSdb, pDb);
//  }
//
//  pShow->numOfRows += numOfRows;
//  mndReleaseUser(pMnode, pUser);
//
//
//
//
//
//
//
//
//  ShowRetrieveFp retrieveFp = pMgmt->retrieveFps[pShow->type];
//  if (retrieveFp == NULL) {
//    mndReleaseShowObj(pShow, false);
//    terrno = TSDB_CODE_MSG_NOT_PROCESSED;
//    mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, terrstr());
//    return -1;
//  }
//
//  mDebug("show:0x%" PRIx64 ", start retrieve data, type:%d", pShow->id, pShow->type);
//  if (retrieveReq.user[0] != 0) {
//    memcpy(pReq->info.conn.user, retrieveReq.user, TSDB_USER_LEN);
//  } else {
//    memcpy(pReq->info.conn.user, TSDB_DEFAULT_USER, strlen(TSDB_DEFAULT_USER) + 1);
//  }
//  if (retrieveReq.db[0] && mndCheckShowPrivilege(pMnode, pReq->info.conn.user, pShow->type, retrieveReq.db) != 0) {
//    return -1;
//  }
//
//  int32_t numOfCols = pShow->pMeta->numOfColumns;
//
//  SSDataBlock *pBlock = createDataBlock();
//  for (int32_t i = 0; i < numOfCols; ++i) {
//    SColumnInfoData idata = {0};
//
//    SSchema *p = &pShow->pMeta->pSchemas[i];
//
//    idata.info.bytes = p->bytes;
//    idata.info.type = p->type;
//    idata.info.colId = p->colId;
//    blockDataAppendColInfo(pBlock, &idata);
//  }
//
//  blockDataEnsureCapacity(pBlock, rowsToRead);
//
//  if (mndCheckRetrieveFinished(pShow)) {
//    mDebug("show:0x%" PRIx64 ", read finished, numOfRows:%d", pShow->id, pShow->numOfRows);
//    rowsRead = 0;
//  } else {
//    rowsRead = (*retrieveFp)(pReq, pShow, pBlock, rowsToRead);
//    if (rowsRead < 0) {
//      terrno = rowsRead;
//      mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);
//      mndReleaseShowObj(pShow, true);
//      blockDataDestroy(pBlock);
//      return -1;
//    }
//
//    pBlock->info.rows = rowsRead;
//    mDebug("show:0x%" PRIx64 ", stop retrieve data, rowsRead:%d numOfRows:%d", pShow->id, rowsRead, pShow->numOfRows);
//  }
//
//  size = sizeof(SRetrieveMetaTableRsp) + sizeof(int32_t) + sizeof(SSysTableSchema) * pShow->pMeta->numOfColumns +
//         blockDataGetSize(pBlock) + blockDataGetSerialMetaSize(taosArrayGetSize(pBlock->pDataBlock));
//
//  SRetrieveMetaTableRsp *pRsp = rpcMallocCont(size);
//  if (pRsp == NULL) {
//    mndReleaseShowObj(pShow, false);
//    terrno = TSDB_CODE_OUT_OF_MEMORY;
//    mError("show:0x%" PRIx64 ", failed to retrieve data since %s", pShow->id, terrstr());
//    blockDataDestroy(pBlock);
//    return -1;
//  }
//
//  pRsp->handle = htobe64(pShow->id);
//
//  if (rowsRead > 0) {
//    char    *pStart = pRsp->data;
//    SSchema *ps = pShow->pMeta->pSchemas;
//
//    *(int32_t *)pStart = htonl(pShow->pMeta->numOfColumns);
//    pStart += sizeof(int32_t);  // number of columns
//
//    for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {
//      SSysTableSchema *pSchema = (SSysTableSchema *)pStart;
//      pSchema->bytes = htonl(ps[i].bytes);
//      pSchema->colId = htons(ps[i].colId);
//      pSchema->type = ps[i].type;
//
//      pStart += sizeof(SSysTableSchema);
//    }
//
//    int32_t len = blockEncode(pBlock, pStart, pShow->pMeta->numOfColumns);
//  }
//
//  pRsp->numOfRows = htonl(rowsRead);
//  pRsp->precision = TSDB_TIME_PRECISION_MILLI;  // millisecond time precision
//  pReq->info.rsp = pRsp;
//  pReq->info.rspLen = size;
//
//  if (rowsRead == 0 || rowsRead < rowsToRead) {
//    pRsp->completed = 1;
//    mDebug("show:0x%" PRIx64 ", retrieve completed", pShow->id);
//    mndReleaseShowObj(pShow, true);
//  } else {
//    mDebug("show:0x%" PRIx64 ", retrieve not completed yet", pShow->id);
//    mndReleaseShowObj(pShow, false);
//  }
//
//  blockDataDestroy(pBlock);
//  return TSDB_CODE_SUCCESS;
//}

2961 2962
static int32_t mndRetrieveStb(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
  SMnode  *pMnode = pReq->info.node;
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  SSdb    *pSdb = pMnode->pSdb;
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  int32_t  numOfRows = 0;
  SStbObj *pStb = NULL;
  int32_t  cols = 0;
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  SDbObj *pDb = NULL;
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  if (strlen(pShow->db) > 0) {
    pDb = mndAcquireDb(pMnode, pShow->db);
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    if (pDb == NULL) return terrno;
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  }
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  while (numOfRows < rows) {
2975
    pShow->pIter = sdbFetch(pSdb, SDB_STB, pShow->pIter, (void **)&pStb);
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    if (pShow->pIter == NULL) break;

2978
    if (pDb != NULL && pStb->dbUid != pDb->uid) {
2979
      sdbRelease(pSdb, pStb);
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      continue;
    }

    cols = 0;

2985
    SName name = {0};
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    char  stbName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
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    mndExtractTbNameFromStbFullName(pStb->name, &stbName[VARSTR_HEADER_SIZE], TSDB_TABLE_NAME_LEN);
2988
    varDataSetLen(stbName, strlen(&stbName[VARSTR_HEADER_SIZE]));
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    SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2991
    colDataSetVal(pColInfo, numOfRows, (const char *)stbName, false);
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    char db[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
    tNameFromString(&name, pStb->db, T_NAME_ACCT | T_NAME_DB);
2995 2996 2997
    tNameGetDbName(&name, varDataVal(db));
    varDataSetLen(db, strlen(varDataVal(db)));

2998
    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
2999
    colDataSetVal(pColInfo, numOfRows, (const char *)db, false);
3000 3001

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3002
    colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->createdTime, false);
3003 3004

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3005
    colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->numOfColumns, false);
3006 3007

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3008
    colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->numOfTags, false);
3009 3010

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3011
    colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->updateTime, false);  // number of tables
3012

3013
    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
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    if (pStb->commentLen > 0) {
      char comment[TSDB_TB_COMMENT_LEN + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(comment, pStb->comment);
3017
      colDataSetVal(pColInfo, numOfRows, comment, false);
3018
    } else if (pStb->commentLen == 0) {
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      char comment[VARSTR_HEADER_SIZE + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(comment, "");
3021
      colDataSetVal(pColInfo, numOfRows, comment, false);
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    } else {
3023
      colDataSetNULL(pColInfo, numOfRows);
3024
    }
3025

3026 3027 3028 3029 3030
    char watermark[64 + VARSTR_HEADER_SIZE] = {0};
    sprintf(varDataVal(watermark), "%" PRId64 "a,%" PRId64 "a", pStb->watermark[0], pStb->watermark[1]);
    varDataSetLen(watermark, strlen(varDataVal(watermark)));

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3031
    colDataSetVal(pColInfo, numOfRows, (const char *)watermark, false);
3032 3033 3034 3035 3036 3037

    char maxDelay[64 + VARSTR_HEADER_SIZE] = {0};
    sprintf(varDataVal(maxDelay), "%" PRId64 "a,%" PRId64 "a", pStb->maxdelay[0], pStb->maxdelay[1]);
    varDataSetLen(maxDelay, strlen(varDataVal(maxDelay)));

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3038
    colDataSetVal(pColInfo, numOfRows, (const char *)maxDelay, false);
3039

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    char    rollup[160 + VARSTR_HEADER_SIZE] = {0};
3041
    int32_t rollupNum = (int32_t)taosArrayGetSize(pStb->pFuncs);
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    char   *sep = ", ";
    int32_t sepLen = strlen(sep);
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    int32_t rollupLen = sizeof(rollup) - VARSTR_HEADER_SIZE - 2;
3045 3046 3047
    for (int32_t i = 0; i < rollupNum; ++i) {
      char *funcName = taosArrayGet(pStb->pFuncs, i);
      if (i) {
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        strncat(varDataVal(rollup), sep, rollupLen);
        rollupLen -= sepLen;
3050
      }
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      strncat(varDataVal(rollup), funcName, rollupLen);
      rollupLen -= strlen(funcName);
3053 3054 3055 3056
    }
    varDataSetLen(rollup, strlen(varDataVal(rollup)));

    pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3057
    colDataSetVal(pColInfo, numOfRows, (const char *)rollup, false);
3058

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    numOfRows++;
3060
    sdbRelease(pSdb, pStb);
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  }

3063 3064 3065 3066
  if (pDb != NULL) {
    mndReleaseDb(pMnode, pDb);
  }

3067
  pShow->numOfRows += numOfRows;
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  return numOfRows;
}

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static int32_t buildDbColsInfoBlock(const SSDataBlock *p, const SSysTableMeta *pSysDbTableMeta, size_t size,
                                    const char *dbName, const char *tbName) {
3073 3074 3075 3076 3077 3078 3079 3080 3081
  char    tName[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
  char    dName[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
  char    typeName[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
  int32_t numOfRows = p->info.rows;

  STR_TO_VARSTR(dName, dbName);
  STR_TO_VARSTR(typeName, "SYSTEM_TABLE");

  for (int32_t i = 0; i < size; ++i) {
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    const SSysTableMeta *pm = &pSysDbTableMeta[i];
    //    if (pm->sysInfo) {
    //      continue;
    //    }
    if (tbName[0] && strncmp(tbName, pm->name, TSDB_TABLE_NAME_LEN) != 0) {
3087 3088 3089
      continue;
    }

3090 3091
    STR_TO_VARSTR(tName, pm->name);

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    for (int32_t j = 0; j < pm->colNum; j++) {
3093
      // table name
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      SColumnInfoData *pColInfoData = taosArrayGet(p->pDataBlock, 0);
3095
      colDataSetVal(pColInfoData, numOfRows, tName, false);
3096

3097
      // database name
3098
      pColInfoData = taosArrayGet(p->pDataBlock, 1);
3099
      colDataSetVal(pColInfoData, numOfRows, dName, false);
3100 3101

      pColInfoData = taosArrayGet(p->pDataBlock, 2);
3102
      colDataSetVal(pColInfoData, numOfRows, typeName, false);
3103 3104 3105 3106 3107

      // col name
      char colName[TSDB_COL_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(colName, pm->schema[j].name);
      pColInfoData = taosArrayGet(p->pDataBlock, 3);
3108
      colDataSetVal(pColInfoData, numOfRows, colName, false);
3109 3110 3111 3112 3113 3114 3115

      // col type
      int8_t colType = pm->schema[j].type;
      pColInfoData = taosArrayGet(p->pDataBlock, 4);
      char colTypeStr[VARSTR_HEADER_SIZE + 32];
      int  colTypeLen = sprintf(varDataVal(colTypeStr), "%s", tDataTypes[colType].name);
      if (colType == TSDB_DATA_TYPE_VARCHAR) {
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        colTypeLen +=
            sprintf(varDataVal(colTypeStr) + colTypeLen, "(%d)", (int32_t)(pm->schema[j].bytes - VARSTR_HEADER_SIZE));
3118
      } else if (colType == TSDB_DATA_TYPE_NCHAR) {
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        colTypeLen += sprintf(varDataVal(colTypeStr) + colTypeLen, "(%d)",
                              (int32_t)((pm->schema[j].bytes - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE));
3121 3122
      }
      varDataSetLen(colTypeStr, colTypeLen);
3123
      colDataSetVal(pColInfoData, numOfRows, (char *)colTypeStr, false);
3124 3125

      pColInfoData = taosArrayGet(p->pDataBlock, 5);
3126
      colDataSetVal(pColInfoData, numOfRows, (const char *)&pm->schema[j].bytes, false);
3127 3128
      for (int32_t k = 6; k <= 8; ++k) {
        pColInfoData = taosArrayGet(p->pDataBlock, k);
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        colDataSetNULL(pColInfoData, numOfRows);
3130 3131 3132 3133 3134 3135 3136 3137 3138
      }

      numOfRows += 1;
    }
  }

  return numOfRows;
}

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static int32_t buildSysDbColsInfo(SSDataBlock *p, char *db, char *tb) {
3140
  size_t               size = 0;
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  const SSysTableMeta *pSysDbTableMeta = NULL;
3142

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  if (db[0] && strncmp(db, TSDB_INFORMATION_SCHEMA_DB, TSDB_DB_FNAME_LEN) != 0 &&
      strncmp(db, TSDB_PERFORMANCE_SCHEMA_DB, TSDB_DB_FNAME_LEN) != 0) {
3145 3146 3147
    return p->info.rows;
  }

3148
  getInfosDbMeta(&pSysDbTableMeta, &size);
3149
  p->info.rows = buildDbColsInfoBlock(p, pSysDbTableMeta, size, TSDB_INFORMATION_SCHEMA_DB, tb);
3150 3151

  getPerfDbMeta(&pSysDbTableMeta, &size);
3152
  p->info.rows = buildDbColsInfoBlock(p, pSysDbTableMeta, size, TSDB_PERFORMANCE_SCHEMA_DB, tb);
3153 3154 3155 3156 3157 3158 3159 3160 3161

  return p->info.rows;
}

static int32_t mndRetrieveStbCol(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
  SMnode  *pMnode = pReq->info.node;
  SSdb    *pSdb = pMnode->pSdb;
  SStbObj *pStb = NULL;

3162
  int32_t numOfRows = buildSysDbColsInfo(pBlock, pShow->db, pShow->filterTb);
3163
  mDebug("mndRetrieveStbCol get system table cols, rows:%d, db:%s", numOfRows, pShow->db);
3164 3165 3166 3167 3168 3169
  SDbObj *pDb = NULL;
  if (strlen(pShow->db) > 0) {
    pDb = mndAcquireDb(pMnode, pShow->db);
    if (pDb == NULL) return terrno;
  }

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  char typeName[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
3171
  STR_TO_VARSTR(typeName, "SUPER_TABLE");
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  bool fetch = pShow->restore ? false : true;
  pShow->restore = false;
3174
  while (numOfRows < rows) {
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    if (fetch) {
      pShow->pIter = sdbFetch(pSdb, SDB_STB, pShow->pIter, (void **)&pStb);
      if (pShow->pIter == NULL) break;
    } else {
      fetch = true;
      void  *pKey = taosHashGetKey(pShow->pIter, NULL);
      pStb = sdbAcquire(pSdb, SDB_STB, pKey);
      if (!pStb) continue;
    }
3184 3185 3186 3187 3188 3189 3190 3191 3192

    if (pDb != NULL && pStb->dbUid != pDb->uid) {
      sdbRelease(pSdb, pStb);
      continue;
    }

    SName name = {0};
    char  stbName[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
    mndExtractTbNameFromStbFullName(pStb->name, &stbName[VARSTR_HEADER_SIZE], TSDB_TABLE_NAME_LEN);
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    if (pShow->filterTb[0] && strncmp(pShow->filterTb, &stbName[VARSTR_HEADER_SIZE], TSDB_TABLE_NAME_LEN) != 0) {
3194 3195 3196
      sdbRelease(pSdb, pStb);
      continue;
    }
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    if ((numOfRows + pStb->numOfColumns) > rows) {
      pShow->restore = true;
      if (numOfRows == 0) {
        mError("mndRetrieveStbCol failed to get stable cols since buf:%d less than result:%d, stable name:%s, db:%s",
               rows, pStb->numOfColumns, pStb->name, pStb->db);
      }
      sdbRelease(pSdb, pStb);
      break;
    }

3208 3209
    varDataSetLen(stbName, strlen(&stbName[VARSTR_HEADER_SIZE]));

3210 3211
    mDebug("mndRetrieveStbCol get stable cols, stable name:%s, db:%s", pStb->name, pStb->db);

3212 3213 3214 3215 3216
    char db[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
    tNameFromString(&name, pStb->db, T_NAME_ACCT | T_NAME_DB);
    tNameGetDbName(&name, varDataVal(db));
    varDataSetLen(db, strlen(varDataVal(db)));

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    for (int i = 0; i < pStb->numOfColumns; i++) {
      int32_t          cols = 0;
3219
      SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3220
      colDataSetVal(pColInfo, numOfRows, (const char *)stbName, false);
3221 3222

      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3223
      colDataSetVal(pColInfo, numOfRows, (const char *)db, false);
3224 3225

      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
3226
      colDataSetVal(pColInfo, numOfRows, typeName, false);
3227 3228 3229 3230 3231

      // col name
      char colName[TSDB_COL_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
      STR_TO_VARSTR(colName, pStb->pColumns[i].name);
      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
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      colDataSetVal(pColInfo, numOfRows, colName, false);
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      // col type
      int8_t colType = pStb->pColumns[i].type;
      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
      char colTypeStr[VARSTR_HEADER_SIZE + 32];
      int  colTypeLen = sprintf(varDataVal(colTypeStr), "%s", tDataTypes[colType].name);
      if (colType == TSDB_DATA_TYPE_VARCHAR) {
        colTypeLen += sprintf(varDataVal(colTypeStr) + colTypeLen, "(%d)",
                              (int32_t)(pStb->pColumns[i].bytes - VARSTR_HEADER_SIZE));
      } else if (colType == TSDB_DATA_TYPE_NCHAR) {
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        colTypeLen += sprintf(varDataVal(colTypeStr) + colTypeLen, "(%d)",
                              (int32_t)((pStb->pColumns[i].bytes - VARSTR_HEADER_SIZE) / TSDB_NCHAR_SIZE));
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      }
      varDataSetLen(colTypeStr, colTypeLen);
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      colDataSetVal(pColInfo, numOfRows, (char *)colTypeStr, false);
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      pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
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      colDataSetVal(pColInfo, numOfRows, (const char *)&pStb->pColumns[i].bytes, false);
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      while (cols < pShow->numOfColumns) {
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        pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
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        colDataSetNULL(pColInfo, numOfRows);
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      }
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      numOfRows++;
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    }

    sdbRelease(pSdb, pStb);
  }

  if (pDb != NULL) {
    mndReleaseDb(pMnode, pDb);
  }

  pShow->numOfRows += numOfRows;
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  mDebug("mndRetrieveStbCol success, rows:%d, pShow->numOfRows:%d", numOfRows, pShow->numOfRows);

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  return numOfRows;
}

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static void mndCancelGetNextStb(SMnode *pMnode, void *pIter) {
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  SSdb *pSdb = pMnode->pSdb;
  sdbCancelFetch(pSdb, pIter);
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}
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const char *mndGetStbStr(const char *src) {
  char *posDb = strstr(src, TS_PATH_DELIMITER);
  if (posDb != NULL) ++posDb;
  if (posDb == NULL) return src;

  char *posStb = strstr(posDb, TS_PATH_DELIMITER);
  if (posStb != NULL) ++posStb;
  if (posStb == NULL) return posDb;
  return posStb;
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}
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static int32_t mndCheckIndexReq(SCreateTagIndexReq *pReq) {
  // impl
  return TSDB_CODE_SUCCESS;
}

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/*int32_t mndAddIndexImpl(SMnode *pMnode, SRpcMsg *pReq, SDbObj *pDb, SStbObj *pStb, bool needRsp, void *sql,
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                        int32_t len) {
  // impl later
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  int32_t code = 0;
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  STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_DB_INSIDE, pReq, "create-stb-index");
  if (pTrans == NULL) goto _OVER;

  mInfo("trans:%d, used to add index to stb:%s", pTrans->id, pStb->name);
  mndTransSetDbName(pTrans, pDb->name, pStb->name);
  if (mndTrancCheckConflict(pMnode, pTrans) != 0) goto _OVER;

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  if (mndSetAlterStbRedoLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
  if (mndSetAlterStbCommitLogs(pMnode, pTrans, pDb, pStb) != 0) goto _OVER;
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  if (mndSetAlterStbRedoActions2(pMnode, pTrans, pDb, pStb, sql, len) != 0) goto _OVER;
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  if (mndTransPrepare(pMnode, pTrans) != 0) goto _OVER;

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  return code;

_OVER:
  mndTransDrop(pTrans);
  return code;
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}
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static int32_t mndAddIndex(SMnode *pMnode, SRpcMsg *pReq, SCreateTagIndexReq *tagIdxReq, SDbObj *pDb, SStbObj *pOld) {
  bool    needRsp = true;
  int32_t code = -1;
  SField *pField0 = NULL;

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  SStbObj  stbObj = {0};
  SStbObj *pNew = &stbObj;

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  taosRLockLatch(&pOld->lock);
  memcpy(&stbObj, pOld, sizeof(SStbObj));
  taosRUnLockLatch(&pOld->lock);

  stbObj.pColumns = NULL;
  stbObj.pTags = NULL;
  stbObj.updateTime = taosGetTimestampMs();
  stbObj.lock = 0;

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  int32_t tag = mndFindSuperTableTagIndex(pOld, tagIdxReq->colName);
  if (tag < 0) {
    terrno = TSDB_CODE_MND_TAG_NOT_EXIST;
    return -1;
  }
  col_id_t colId = pOld->pTags[tag].colId;
  if (mndCheckColAndTagModifiable(pMnode, pOld->name, pOld->uid, colId) != 0) {
    return -1;
  }
  if (mndAllocStbSchemas(pOld, pNew) != 0) {
    return -1;
  }

  SSchema *pTag = pNew->pTags + tag;
  if (IS_IDX_ON(pTag)) {
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    terrno = TSDB_CODE_MND_TAG_INDEX_ALREADY_EXIST;
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    return -1;
  } else {
    pTag->flags |= COL_IDX_ON;
  }
  pNew->tagVer++;

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  code = mndAddIndexImpl(pMnode, pReq, pDb, pNew, needRsp, pReq->pCont, pReq->contLen);

  return code;
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}
static int32_t mndProcessCreateIndexReq(SRpcMsg *pReq) {
  SMnode            *pMnode = pReq->info.node;
  int32_t            code = -1;
  SDbObj            *pDb = NULL;
  SStbObj           *pStb = NULL;
  SCreateTagIndexReq tagIdxReq = {0};

  if (tDeserializeSCreateTagIdxReq(pReq->pCont, pReq->contLen, &tagIdxReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    goto _OVER;
  }

  mInfo("stb:%s, start to alter", tagIdxReq.stbName);

  if (mndCheckIndexReq(&tagIdxReq) != TSDB_CODE_SUCCESS) {
    goto _OVER;
  }

  pDb = mndAcquireDbByStb(pMnode, tagIdxReq.dbFName);
  if (pDb == NULL) {
    terrno = TSDB_CODE_MND_INVALID_DB;
    goto _OVER;
  }

  pStb = mndAcquireStb(pMnode, tagIdxReq.stbName);
  if (pStb == NULL) {
    terrno = TSDB_CODE_MND_STB_NOT_EXIST;
    goto _OVER;
  }
  if (mndCheckDbPrivilege(pMnode, pReq->info.conn.user, MND_OPER_WRITE_DB, pDb) != 0) {
    goto _OVER;
  }

  code = mndAddIndex(pMnode, pReq, &tagIdxReq, pDb, pStb);
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  if (terrno == TSDB_CODE_MND_TAG_INDEX_ALREADY_EXIST || terrno == TSDB_CODE_MND_TAG_NOT_EXIST) {
    return terrno;
  } else {
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    if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
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  }
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_OVER:
  if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
    mError("stb:%s, failed to create index since %s", tagIdxReq.stbName, terrstr());
  }
  mndReleaseStb(pMnode, pStb);
  mndReleaseDb(pMnode, pDb);
  return code;
}
static int32_t mndProcessDropIndexReq(SRpcMsg *pReq) {
  SMnode          *pMnode = pReq->info.node;
  int32_t          code = -1;
  SDbObj          *pDb = NULL;
  SStbObj         *pStb = NULL;
  SDropTagIndexReq dropReq = {0};
  if (tDeserializeSDropTagIdxReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
    terrno = TSDB_CODE_INVALID_MSG;
    goto _OVER;
  }
  //
  return TSDB_CODE_SUCCESS;
_OVER:
  return code;
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}*/