Merge remote-tracking branch 'origin/3.0' into feature/dnode

contrib/CMakeLists.txt

@@ -228,7 +228,7 @@ endif()
 
 # iconv
 if(${BUILD_WITH_ICONV})
-    add_subdirectory(iconv EXCLUDE_FROM_ALL)
+    add_library(iconv STATIC iconv/win_iconv.c)
 endif(${BUILD_WITH_ICONV})
 
 # wingetopt

example/src/tstream.c

@@ -25,7 +25,7 @@ int32_t init_env() {
     return -1;
   }
 
-  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2");
+  TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 1");
   if (taos_errno(pRes) != 0) {
     printf("error in create db, reason:%s\n", taos_errstr(pRes));
     return -1;
@@ -78,11 +78,14 @@ int32_t create_stream() {
   taos_free_result(pRes);
 
   /*const char* sql = "select min(k), max(k), sum(k) from tu1";*/
-  const char* sql = "select min(k), max(k), sum(k) as sum_of_k from st1";
+  /*const char* sql = "select min(k), max(k), sum(k) as sum_of_k from st1";*/
   /*const char* sql = "select sum(k) from tu1 interval(10m)";*/
-  pRes = tmq_create_stream(pConn, "stream1", "out1", sql);
+  /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/
+  pRes = taos_query(
+      pConn,
+      "create stream stream1 trigger window_close as select min(k), max(k), sum(k) as sum_of_k from tu1 interval(10m)");
   if (taos_errno(pRes) != 0) {
-    printf("failed to create stream out1, reason:%s\n", taos_errstr(pRes));
+    printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes));
     return -1;
   }
   taos_free_result(pRes);

include/client/taos.h

@@ -86,9 +86,9 @@ typedef struct taosField {
 } TAOS_FIELD;
 
 #ifdef WINDOWS
-  #define DLL_EXPORT    __declspec(dllexport)
+#define DLL_EXPORT __declspec(dllexport)
 #else
-  #define DLL_EXPORT 
+#define DLL_EXPORT
 #endif
 
 typedef void (*__taos_async_fn_t)(void *param, TAOS_RES *, int code);
@@ -271,10 +271,8 @@ DLL_EXPORT int64_t     tmq_get_response_offset(tmq_message_t *message);
 /* --------------------TMPORARY INTERFACE FOR TESTING--------------------- */
 #if 0
 DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *sql, int sqlLen);
-#endif
-
 DLL_EXPORT TAOS_RES *tmq_create_stream(TAOS *taos, const char *streamName, const char *tbName, const char *sql);
-
+#endif
 /* ------------------------------ TMQ END -------------------------------- */
 #if 1  // Shuduo: temporary enable for app build
 typedef void (*TAOS_SUBSCRIBE_CALLBACK)(TAOS_SUB *tsub, TAOS_RES *res, void *param, int code);

include/common/systable.h

+/*
+ * 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/>.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "os.h"
+
+#ifndef TDENGINE_SYSTABLE_H
+#define TDENGINE_SYSTABLE_H
+
+#define TSDB_INFORMATION_SCHEMA_DB            "information_schema"
+#define TSDB_PERFORMANCE_SCHEMA_DB            "performance_schema"
+#define TSDB_INS_TABLE_DNODES                 "dnodes"
+#define TSDB_INS_TABLE_MNODES                 "mnodes"
+#define TSDB_INS_TABLE_MODULES                "modules"
+#define TSDB_INS_TABLE_QNODES                 "qnodes"
+#define TSDB_INS_TABLE_BNODES                 "bnodes"
+#define TSDB_INS_TABLE_SNODES                 "snodes"
+#define TSDB_INS_TABLE_CLUSTER                "cluster"
+#define TSDB_INS_TABLE_USER_DATABASES         "user_databases"
+#define TSDB_INS_TABLE_USER_FUNCTIONS         "user_functions"
+#define TSDB_INS_TABLE_USER_INDEXES           "user_indexes"
+#define TSDB_INS_TABLE_USER_STABLES           "user_stables"
+#define TSDB_INS_TABLE_USER_STREAMS           "user_streams"
+#define TSDB_INS_TABLE_USER_TABLES            "user_tables"
+#define TSDB_INS_TABLE_USER_TABLE_DISTRIBUTED "user_table_distributed"
+#define TSDB_INS_TABLE_USER_USERS             "user_users"
+#define TSDB_INS_TABLE_LICENCES               "grants"
+#define TSDB_INS_TABLE_VGROUPS                "vgroups"
+#define TSDB_INS_TABLE_VNODES                 "vnodes"
+#define TSDB_INS_TABLE_CONFIGS                "configs"
+
+#define TSDB_PERFORMANCE_SCHEMA_DB            "performance_schema"
+#define TSDB_PERFS_TABLE_SMAS                 "smas"
+#define TSDB_PERFS_TABLE_SUBSCRIBES           "subscribes"
+#define TSDB_PERFS_TABLE_CONNECTIONS          "connections"
+#define TSDB_PERFS_TABLE_QUERIES              "queries"
+#define TSDB_PERFS_TABLE_TOPICS               "topics"
+#define TSDB_PERFS_TABLE_CONSUMERS            "consumers"
+#define TSDB_PERFS_TABLE_SUBSCRIPTIONS        "subscriptions"
+#define TSDB_PERFS_TABLE_OFFSETS              "offsets"
+#define TSDB_PERFS_TABLE_TRANS                "trans"
+#define TSDB_PERFS_TABLE_STREAMS              "streams"
+
+typedef struct SSysDbTableSchema {
+  const char   *name;
+  const int32_t type;
+  const int32_t bytes;
+} SSysDbTableSchema;
+
+typedef struct SSysTableMeta {
+  const char              *name;
+  const SSysDbTableSchema *schema;
+  const int32_t            colNum;
+} SSysTableMeta;
+
+void getInfosDbMeta(const SSysTableMeta** pInfosTableMeta, size_t* size);
+void getPerfDbMeta(const SSysTableMeta** pPerfsTableMeta, size_t* size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // TDENGINE_SYSTABLE_H

include/common/tcommon.h

@@ -65,10 +65,8 @@ typedef struct SDataBlockInfo {
   STimeWindow window;
   int32_t     rows;
   int32_t     rowSize;
-  union {
-    int64_t uid;  // from which table of uid, comes from this data block
-    int64_t blockId;
-  };
+  int64_t     uid;      // the uid of table, from which current data block comes
+  int64_t     blockId;  // block id, generated by physical planner
   uint64_t    groupId;  // no need to serialize
   int16_t     numOfCols;
   int16_t     hasVarCol;

include/common/tmsg.h

@@ -1038,6 +1038,7 @@ typedef struct {
   int8_t  compressed;
   int32_t compLen;
   int32_t numOfRows;
+  int32_t numOfCols;
   char    data[];
 } SRetrieveTableRsp;
 
@@ -1473,7 +1474,6 @@ _err:
 // this message is sent from mnode to mnode(read thread to write thread), so there is no need for serialization or
 // deserialization
 typedef struct {
-  int8_t*   mqInReb;
   SHashObj* rebSubHash;  // SHashObj<key, SMqRebSubscribe>
 } SMqDoRebalanceMsg;
 

include/common/trow.h

@@ -595,6 +595,34 @@ static FORCE_INLINE int32_t tdSRowSetInfo(SRowBuilder *pBuilder, int32_t nCols,
   return TSDB_CODE_SUCCESS;
 }
 
+/**
+ * @brief
+ *
+ * @param pBuilder
+ * @param nCols
+ * @param nBoundCols use -1 if not available
+ * @param flen
+ * @return FORCE_INLINE
+ */
+static FORCE_INLINE int32_t tdSRowSetTpInfo(SRowBuilder *pBuilder, int32_t nCols, int32_t flen) {
+  pBuilder->flen = flen;
+  pBuilder->nCols = nCols;
+  if (pBuilder->flen <= 0 || pBuilder->nCols <= 0) {
+    TASSERT(0);
+    terrno = TSDB_CODE_INVALID_PARA;
+    return terrno;
+  }
+#ifdef TD_SUPPORT_BITMAP
+  // the primary TS key is stored separatedly
+  pBuilder->nBitmaps = (int16_t)TD_BITMAP_BYTES(pBuilder->nCols - 1);
+#else
+  pBuilder->nBitmaps = 0;
+  pBuilder->nBoundBitmaps = 0;
+#endif
+  return TSDB_CODE_SUCCESS;
+}
+
+
 /**
  * @brief To judge row type: STpRow/SKvRow
  *
@@ -1376,7 +1404,7 @@ static void tdSRowPrint(STSRow *row, STSchema *pSchema, const char* tag) {
   printf("%s >>>", tag);
   for (int i = 0; i < pSchema->numOfCols; ++i) {
     STColumn *stCol = pSchema->columns + i;
-    SCellVal  sVal = {.valType = 255, .val = NULL};
+    SCellVal  sVal = { 255, NULL};
     if (!tdSTSRowIterNext(&iter, stCol->colId, stCol->type, &sVal)) {
       break;
     }
@@ -1385,7 +1413,6 @@ static void tdSRowPrint(STSRow *row, STSchema *pSchema, const char* tag) {
   }
   printf("\n");
 }
-
 #ifdef TROW_ORIGIN_HZ
 typedef struct {
   uint32_t nRows;

include/libs/executor/dataSinkMgt.h

@@ -45,6 +45,7 @@ typedef struct SInputData {
 
 typedef struct SOutputData {
   int32_t numOfRows;
+  int32_t numOfCols;
   int8_t  compressed;
   char*   pData;
   bool    queryEnd;

include/libs/executor/executor.h

@@ -33,6 +33,7 @@ typedef struct SReadHandle {
   void* meta;
   void* config;
   void* vnode;
+  void* mnd;
 } SReadHandle;
 
 #define STREAM_DATA_TYPE_SUBMIT_BLOCK 0x1

include/libs/function/function.h

@@ -165,7 +165,7 @@ typedef struct SInputColumnInfoData {
   SColumnInfoData  *pPTS;           // primary timestamp column
   SColumnInfoData **pData;
   SColumnDataAgg  **pColumnDataAgg;
-  uint64_t          uid;            // table uid
+  uint64_t          uid;            // table uid, used to set the tag value when building the final query result for selectivity functions.
 } SInputColumnInfoData;
 
 // sql function runtime context

include/libs/function/functionMgt.h

@@ -40,6 +40,7 @@ typedef enum EFunctionType {
   FUNCTION_TYPE_STDDEV,
   FUNCTION_TYPE_SUM,
   FUNCTION_TYPE_TWA,
+  FUNCTION_TYPE_HISTOGRAM,
 
   // nonstandard SQL function
   FUNCTION_TYPE_BOTTOM = 500,

include/libs/stream/tstream.h

@@ -35,19 +35,6 @@ enum {
   STREAM_CREATED_BY__SMA,
 };
 
-#if 0
-// pipe  -> fetch/pipe queue
-// merge -> merge      queue
-// write -> write      queue
-enum {
-  TASK_DISPATCH_MSG__SND_PIPE = 1,
-  TASK_DISPATCH_MSG__SND_MERGE,
-  TASK_DISPATCH_MSG__VND_PIPE,
-  TASK_DISPATCH_MSG__VND_MERGE,
-  TASK_DISPATCH_MSG__VND_WRITE,
-};
-#endif
-
 typedef struct {
   int32_t nodeId;  // 0 for snode
   SEpSet  epSet;
@@ -100,10 +87,6 @@ typedef struct {
   int8_t reserved;
 } STaskSinkFetch;
 
-typedef struct {
-  int8_t reserved;
-} STaskSinkShow;
-
 enum {
   TASK_SOURCE__SCAN = 1,
   TASK_SOURCE__PIPE,
@@ -128,7 +111,6 @@ enum {
   TASK_SINK__TABLE,
   TASK_SINK__SMA,
   TASK_SINK__FETCH,
-  TASK_SINK__SHOW,
 };
 
 typedef struct {
@@ -155,7 +137,6 @@ typedef struct {
     STaskSinkTb    tbSink;
     STaskSinkSma   smaSink;
     STaskSinkFetch fetchSink;
-    STaskSinkShow  showSink;
   };
 
   // dispatch

include/util/tdef.h

@@ -97,43 +97,6 @@ extern const int32_t TYPE_BYTES[15];
 #define TSDB_TIME_PRECISION_MICRO_DIGITS 16
 #define TSDB_TIME_PRECISION_NANO_DIGITS  19
 
-#define TSDB_INFORMATION_SCHEMA_DB            "information_schema"
-#define TSDB_PERFORMANCE_SCHEMA_DB            "performance_schema"
-#define TSDB_INS_TABLE_DNODES                 "dnodes"
-#define TSDB_INS_TABLE_MNODES                 "mnodes"
-#define TSDB_INS_TABLE_MODULES                "modules"
-#define TSDB_INS_TABLE_QNODES                 "qnodes"
-#define TSDB_INS_TABLE_BNODES                 "bnodes"
-#define TSDB_INS_TABLE_SNODES                 "snodes"
-#define TSDB_INS_TABLE_CLUSTER                "cluster"
-#define TSDB_INS_TABLE_USER_DATABASES         "user_databases"
-#define TSDB_INS_TABLE_USER_FUNCTIONS         "user_functions"
-#define TSDB_INS_TABLE_USER_INDEXES           "user_indexes"
-#define TSDB_INS_TABLE_USER_STABLES           "user_stables"
-#define TSDB_INS_TABLE_USER_STREAMS           "user_streams"
-#define TSDB_INS_TABLE_USER_TABLES            "user_tables"
-#define TSDB_INS_TABLE_USER_TABLE_DISTRIBUTED "user_table_distributed"
-#define TSDB_INS_TABLE_USER_USERS             "user_users"
-#define TSDB_INS_TABLE_LICENCES               "grants"
-#define TSDB_INS_TABLE_VGROUPS                "vgroups"
-#define TSDB_INS_TABLE_CONSUMERS              "consumers"
-#define TSDB_INS_TABLE_SUBSCRIBES             "subscribes"
-#define TSDB_INS_TABLE_TRANS                  "trans"
-#define TSDB_INS_TABLE_SMAS                   "smas"
-#define TSDB_INS_TABLE_CONFIGS                "configs"
-#define TSDB_INS_TABLE_CONNS                  "connections"
-#define TSDB_INS_TABLE_QUERIES                "queries"
-#define TSDB_INS_TABLE_VNODES                 "vnodes"
-
-#define TSDB_PERFORMANCE_SCHEMA_DB     "performance_schema"
-#define TSDB_PERFS_TABLE_CONNECTIONS   "connections"
-#define TSDB_PERFS_TABLE_QUERIES       "queries"
-#define TSDB_PERFS_TABLE_TOPICS        "topics"
-#define TSDB_PERFS_TABLE_CONSUMERS     "consumers"
-#define TSDB_PERFS_TABLE_SUBSCRIPTIONS "subscriptions"
-#define TSDB_PERFS_TABLE_OFFSETS       "offsets"
-#define TSDB_PERFS_TABLE_STREAMS       "streams"
-
 #define TSDB_INDEX_TYPE_SMA      "SMA"
 #define TSDB_INDEX_TYPE_FULLTEXT "FULLTEXT"
 
@@ -205,16 +168,6 @@ typedef enum ELogicConditionType {
   LOGIC_COND_TYPE_NOT,
 } ELogicConditionType;
 
-#define FUNCTION_CEIL  4500
-#define FUNCTION_FLOOR 4501
-#define FUNCTION_ABS   4502
-#define FUNCTION_ROUND 4503
-
-#define FUNCTION_LENGTH 4800
-#define FUNCTION_CONCAT 4801
-#define FUNCTION_LTRIM  4802
-#define FUNCTION_RTRIM  4803
-
 #define TSDB_NAME_DELIMITER_LEN 1
 
 #define TSDB_UNI_LEN  24
@@ -417,21 +370,9 @@ typedef enum ELogicConditionType {
  * 1. ordinary sub query for select * from super_table
  * 2. all sqlobj generated by createSubqueryObj with this flag
  */
-#define TSDB_QUERY_TYPE_SUBQUERY        0x02u
-#define TSDB_QUERY_TYPE_STABLE_SUBQUERY 0x04u  // two-stage subquery for super table
-
-#define TSDB_QUERY_TYPE_TABLE_QUERY      0x08u  // query ordinary table; below only apply to client side
-#define TSDB_QUERY_TYPE_STABLE_QUERY     0x10u  // query on super table
-#define TSDB_QUERY_TYPE_JOIN_QUERY       0x20u  // join query
-#define TSDB_QUERY_TYPE_PROJECTION_QUERY 0x40u  // select *,columns... query
-#define TSDB_QUERY_TYPE_JOIN_SEC_STAGE   0x80u  // join sub query at the second stage
-
-#define TSDB_QUERY_TYPE_TAG_FILTER_QUERY 0x400u
 #define TSDB_QUERY_TYPE_INSERT           0x100u  // insert type
-#define TSDB_QUERY_TYPE_MULTITABLE_QUERY 0x200u
 #define TSDB_QUERY_TYPE_FILE_INSERT      0x400u   // insert data from file
 #define TSDB_QUERY_TYPE_STMT_INSERT      0x800u   // stmt insert type
-#define TSDB_QUERY_TYPE_NEST_SUBQUERY    0x1000u  // nested sub query
 
 #define TSDB_QUERY_HAS_TYPE(x, _type)   (((x) & (_type)) != 0)
 #define TSDB_QUERY_SET_TYPE(x, _type)   ((x) |= (_type))

source/client/src/tmq.c

@@ -667,7 +667,7 @@ tmq_resp_err_t tmq_subscribe(tmq_t* tmq, const tmq_list_t* topic_list) {
   if (code != 0) goto FAIL;
 
   while (TSDB_CODE_MND_CONSUMER_NOT_READY == tmqAskEp(tmq, false)) {
-    tscDebug("not ready, retry");
+    tscDebug("consumer not ready, retry");
     taosMsleep(500);
   }
 
@@ -693,6 +693,7 @@ void tmq_conf_set_offset_commit_cb(tmq_conf_t* conf, tmq_commit_cb* cb) {
   conf->commitCb = cb;
 }
 
+#if 0
 TAOS_RES* tmq_create_stream(TAOS* taos, const char* streamName, const char* tbName, const char* sql) {
   STscObj*     pTscObj = (STscObj*)taos;
   SRequestObj* pRequest = NULL;
@@ -777,6 +778,7 @@ _return:
 
   return pRequest;
 }
+#endif
 
 #if 0
 int32_t tmqGetSkipLogNum(tmq_message_t* tmq_message) {

source/client/test/clientTests.cpp

@@ -659,10 +659,15 @@ TEST(testCase, agg_query_tables) {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
   ASSERT_NE(pConn, nullptr);
 
-  TAOS_RES* pRes = taos_query(pConn, "use abc1");
+  TAOS_RES* pRes = taos_query(pConn, "use db");
+  if (taos_errno(pRes) != 0) {
+    printf("failed to use db, reason:%s\n", taos_errstr(pRes));
+    taos_free_result(pRes);
+    ASSERT_TRUE(false);
+  }
   taos_free_result(pRes);
 
-  pRes = taos_query(pConn, "select now() from m1");
+  pRes = taos_query(pConn, "select tbname from st1");
   if (taos_errno(pRes) != 0) {
     printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
     taos_free_result(pRes);

source/dnode/mnode/impl/inc/mndConsumer.h

@@ -44,6 +44,11 @@ SSdbRow *mndConsumerActionDecode(SSdbRaw *pRaw);
 
 int32_t mndSetConsumerCommitLogs(SMnode *pMnode, STrans *pTrans, SMqConsumerObj *pConsumer);
 
+bool mndRebTryStart();
+void mndRebEnd();
+void mndRebCntInc();
+void mndRebCntDec();
+
 #ifdef __cplusplus
 }
 #endif

source/dnode/mnode/impl/inc/mndDef.h

@@ -388,15 +388,12 @@ typedef struct {
   int8_t         type;
   int8_t         replica;
   int16_t        numOfColumns;
-  int32_t        rowSize;
   int32_t        numOfRows;
   void*          pIter;
   SMnode*        pMnode;
   STableMetaRsp* pMeta;
   bool           sysDbRsp;
   char           db[TSDB_DB_FNAME_LEN];
-  int16_t        offset[TSDB_MAX_COLUMNS];
-  int32_t        bytes[TSDB_MAX_COLUMNS];
 } SShowObj;
 
 typedef struct {

source/dnode/mnode/impl/inc/mndInfoSchema.h

@@ -22,18 +22,6 @@
 extern "C" {
 #endif
 
-typedef struct SInfosTableSchema {
-  const char   *name;
-  const int32_t type;
-  const int32_t bytes;
-} SInfosTableSchema;
-
-typedef struct SInfosTableMeta {
-  const char              *name;
-  const SInfosTableSchema *schema;
-  const int32_t            colNum;
-} SInfosTableMeta;
-
 int32_t mndInitInfos(SMnode *pMnode);
 void    mndCleanupInfos(SMnode *pMnode);
 int32_t mndBuildInsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp);

source/dnode/mnode/impl/inc/mndPerfSchema.h

@@ -22,18 +22,6 @@
 extern "C" {
 #endif
 
-typedef struct SPerfsTableSchema {
-  char   *name;
-  int32_t type;
-  int32_t bytes;
-} SPerfsTableSchema;
-
-typedef struct SPerfsTableMeta {
-  char                    *name;
-  const SPerfsTableSchema *schema;
-  int32_t                  colNum;
-} SPerfsTableMeta;
-
 int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char *tbName, STableMetaRsp *pRsp);
 int32_t mndInitPerfs(SMnode *pMnode);
 void mndCleanupPerfs(SMnode *pMnode);

source/dnode/mnode/impl/inc/mndShow.h

@@ -17,6 +17,7 @@
 #define _TD_MND_SHOW_H_
 
 #include "mndInt.h"
+#include "systable.h"
 
 #ifdef __cplusplus
 extern "C" {

source/dnode/mnode/impl/inc/mndTrans.h

@@ -36,8 +36,8 @@ typedef struct {
 typedef enum {
   TEST_TRANS_START_FUNC = 1,
   TEST_TRANS_STOP_FUNC = 2,
-  CONSUME_TRANS_START_FUNC = 3,
-  CONSUME_TRANS_STOP_FUNC = 4,
+  MQ_REB_TRANS_START_FUNC = 3,
+  MQ_REB_TRANS_STOP_FUNC = 4,
 } ETrnFuncType;
 
 typedef void (*TransCbFp)(SMnode *pMnode, void *param, int32_t paramLen);

source/dnode/mnode/impl/src/mndBnode.c

@@ -453,7 +453,7 @@ static int32_t mndRetrieveBnodes(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
     colDataAppend(pColInfo, numOfRows, (const char *)&pObj->id, false);
 
     char buf[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(buf, pObj->pDnode->ep, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(buf, pObj->pDnode->ep, pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, buf, false);

source/dnode/mnode/impl/src/mndCluster.c

@@ -194,7 +194,7 @@ static int32_t mndRetrieveClusters(SNodeMsg *pMsg, SShowObj *pShow, SSDataBlock
     colDataAppend(pColInfo, numOfRows, (const char*) &pCluster->id, false);
 
     char buf[tListLen(pCluster->name) + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(buf, pCluster->name, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(buf, pCluster->name, pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, buf, false);

source/dnode/mnode/impl/src/mndConsumer.c

@@ -35,7 +35,7 @@
 
 #define MND_CONSUMER_LOST_HB_CNT 3
 
-static int8_t mqInRebFlag = 0;
+static int8_t mqRebLock = 0;
 
 static const char *mndConsumerStatusName(int status);
 
@@ -75,6 +75,17 @@ int32_t mndInitConsumer(SMnode *pMnode) {
 
 void mndCleanupConsumer(SMnode *pMnode) {}
 
+bool mndRebTryStart() {
+  int8_t old = atomic_val_compare_exchange_8(&mqRebLock, 0, 1);
+  return old == 0;
+}
+
+void mndRebEnd() { atomic_sub_fetch_8(&mqRebLock, 1); }
+
+void mndRebCntInc() { atomic_add_fetch_8(&mqRebLock, 1); }
+
+void mndRebCntDec() { atomic_sub_fetch_8(&mqRebLock, 1); }
+
 static int32_t mndProcessConsumerLostMsg(SNodeMsg *pMsg) {
   SMnode             *pMnode = pMsg->pNode;
   SMqConsumerLostMsg *pLostMsg = pMsg->rpcMsg.pCont;
@@ -143,8 +154,7 @@ static int32_t mndProcessMqTimerMsg(SNodeMsg *pMsg) {
   void           *pIter = NULL;
 
   // rebalance cannot be parallel
-  int8_t old = atomic_val_compare_exchange_8(&mqInRebFlag, 0, 1);
-  if (old != 0) {
+  if (!mndRebTryStart()) {
     mInfo("mq rebalance already in progress, do nothing");
     return 0;
   }
@@ -152,7 +162,6 @@ static int32_t mndProcessMqTimerMsg(SNodeMsg *pMsg) {
   SMqDoRebalanceMsg *pRebMsg = rpcMallocCont(sizeof(SMqDoRebalanceMsg));
   pRebMsg->rebSubHash = taosHashInit(64, MurmurHash3_32, true, HASH_NO_LOCK);
   // TODO set cleanfp
-  pRebMsg->mqInReb = &mqInRebFlag;
 
   // iterate all consumers, find all modification
   while (1) {
@@ -223,7 +232,7 @@ static int32_t mndProcessMqTimerMsg(SNodeMsg *pMsg) {
     taosHashCleanup(pRebMsg->rebSubHash);
     rpcFreeCont(pRebMsg);
     mTrace("mq rebalance finished, no modification");
-    atomic_store_8(&mqInRebFlag, 0);
+    mndRebEnd();
   }
   return 0;
 }

source/dnode/mnode/impl/src/mndDb.c

@@ -23,6 +23,7 @@
 #include "mndTrans.h"
 #include "mndUser.h"
 #include "mndVgroup.h"
+#include "systable.h"
 
 #define DB_VER_NUMBER   1
 #define DB_RESERVE_SIZE 64
@@ -1192,7 +1193,7 @@ static int32_t mndProcessUseDbReq(SNodeMsg *pReq) {
   }
 
   char *p = strchr(usedbReq.db, '.');
-  if (p && 0 == strcmp(p + 1, TSDB_INFORMATION_SCHEMA_DB)) {
+  if (p && ((0 == strcmp(p + 1, TSDB_INFORMATION_SCHEMA_DB) || (0 == strcmp(p + 1, TSDB_PERFORMANCE_SCHEMA_DB))))) {
     memcpy(usedbRsp.db, usedbReq.db, TSDB_DB_FNAME_LEN);
     int32_t vgVersion = mndGetGlobalVgroupVersion(pMnode);
     if (usedbReq.vgVersion < vgVersion) {
@@ -1386,12 +1387,13 @@ static void dumpDbInfoData(SSDataBlock *pBlock, SDbObj *pDb, SShowObj *pShow, in
                            bool sysDb) {
   int32_t cols = 0;
 
-  char       *buf = taosMemoryMalloc(pShow->bytes[cols]);
+  int32_t bytes = pShow->pMeta->pSchemas[cols].bytes;
+  char       *buf = taosMemoryMalloc(bytes);
   const char *name = mndGetDbStr(pDb->name);
   if (name != NULL) {
-    STR_WITH_MAXSIZE_TO_VARSTR(buf, name, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(buf, name, bytes);
   } else {
-    STR_WITH_MAXSIZE_TO_VARSTR(buf, "NULL", pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(buf, "NULL", bytes);
   }
 
   char *status = "ready";
@@ -1429,7 +1431,6 @@ static void dumpDbInfoData(SSDataBlock *pBlock, SDbObj *pDb, SShowObj *pShow, in
     colDataAppend(pColInfo, rows, (const char *)&pDb->cfg.replications, false);
 
     const char *src = pDb->cfg.strict ? "strict" : "nostrict";
-    char        b[9 + VARSTR_HEADER_SIZE] = {0};
     STR_WITH_SIZE_TO_VARSTR(b, src, strlen(src));
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, rows, (const char *)b, false);
@@ -1499,8 +1500,10 @@ static void dumpDbInfoData(SSDataBlock *pBlock, SDbObj *pDb, SShowObj *pShow, in
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, rows, (const char *)t, false);
 
+    //  single stable model
+    int8_t m = 0;
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
-    colDataAppend(pColInfo, rows, (const char *)&pDb->cfg.numOfStables, false);
+    colDataAppend(pColInfo, rows, (const char *)&m, false);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols);
     colDataAppend(pColInfo, rows, (const char *)b, false);

source/dnode/mnode/impl/src/mndDef.c

@@ -418,6 +418,9 @@ int32_t tEncodeSStreamObj(SCoder *pEncoder, const SStreamObj *pObj) {
   if (tEncodeI32(pEncoder, pObj->version) < 0) return -1;
   if (tEncodeI8(pEncoder, pObj->status) < 0) return -1;
   if (tEncodeI8(pEncoder, pObj->createdBy) < 0) return -1;
+  if (tEncodeI8(pEncoder, pObj->trigger) < 0) return -1;
+  if (tEncodeI32(pEncoder, pObj->triggerParam) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->waterMark) < 0) return -1;
   if (tEncodeI32(pEncoder, pObj->fixedSinkVgId) < 0) return -1;
   if (tEncodeI64(pEncoder, pObj->smaId) < 0) return -1;
   if (tEncodeCStr(pEncoder, pObj->sql) < 0) return -1;
@@ -464,6 +467,9 @@ int32_t tDecodeSStreamObj(SCoder *pDecoder, SStreamObj *pObj) {
   if (tDecodeI32(pDecoder, &pObj->version) < 0) return -1;
   if (tDecodeI8(pDecoder, &pObj->status) < 0) return -1;
   if (tDecodeI8(pDecoder, &pObj->createdBy) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pObj->trigger) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pObj->triggerParam) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->waterMark) < 0) return -1;
   if (tDecodeI32(pDecoder, &pObj->fixedSinkVgId) < 0) return -1;
   if (tDecodeI64(pDecoder, &pObj->smaId) < 0) return -1;
   if (tDecodeCStrAlloc(pDecoder, &pObj->sql) < 0) return -1;

source/dnode/mnode/impl/src/mndDnode.c

@@ -705,7 +705,7 @@ static int32_t mndRetrieveDnodes(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
     colDataAppend(pColInfo, numOfRows, (const char *)&pDnode->id, false);
 
     char buf[tListLen(pDnode->ep) + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(buf, pDnode->ep, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(buf, pDnode->ep,   pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, buf, false);

source/dnode/mnode/impl/src/mndFunc.c

@@ -517,14 +517,14 @@ static int32_t mndRetrieveFuncs(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     cols = 0;
 
     char b1[tListLen(pFunc->name) + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(b1, pFunc->name, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(b1, pFunc->name, pShow->pMeta->pSchemas[cols].bytes);
 
     SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)b1, false);
 
     if (pFunc->pComment) {
-      char *b2 = taosMemoryCalloc(1, pShow->bytes[cols]);
-      STR_WITH_MAXSIZE_TO_VARSTR(b2, pFunc->pComment, pShow->bytes[cols]);
+      char *b2 = taosMemoryCalloc(1, pShow->pMeta->pSchemas[cols].bytes);
+      STR_WITH_MAXSIZE_TO_VARSTR(b2, pFunc->pComment, pShow->pMeta->pSchemas[cols].bytes);
 
       pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
       colDataAppend(pColInfo, numOfRows, (const char *)b2, false);
@@ -540,7 +540,7 @@ static int32_t mndRetrieveFuncs(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
 
     char b3[TSDB_TYPE_STR_MAX_LEN] = {0};
     STR_WITH_MAXSIZE_TO_VARSTR(b3, mnodeGenTypeStr(buf, TSDB_TYPE_STR_MAX_LEN, pFunc->outputType, pFunc->outputLen),
-                               pShow->bytes[cols]);
+                               pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)b3, false);

source/dnode/mnode/impl/src/mndInfoSchema.c

@@ -14,255 +14,10 @@
  */
 
 #define _DEFAULT_SOURCE
-#include "mndInfoSchema.h"
+#include "systable.h"
 #include "mndInt.h"
 
-#define SYSTABLE_SCH_TABLE_NAME_LEN ((TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
-#define SYSTABLE_SCH_DB_NAME_LEN    ((TSDB_DB_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
-#define SYSTABLE_SCH_COL_NAME_LEN   ((TSDB_COL_NAME_LEN - 1) + VARSTR_HEADER_SIZE)
-
-static const SInfosTableSchema dnodesSchema[] = {
-    {.name = "id", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
-    {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "vnodes", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
-    {.name = "max_vnodes", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
-    {.name = "status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "note", .bytes = 256 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema mnodesSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "role", .bytes = 12 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "role_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema modulesSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "endpoint", .bytes = 134 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "module", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema qnodesSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema snodesSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema bnodesSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "endpoint", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema clusterSchema[] = {
-    {.name = "id", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "name", .bytes = TSDB_CLUSTER_ID_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema userDBSchema[] = {
-    {.name = "name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "vgroups", .bytes = 2, .type = TSDB_DATA_TYPE_SMALLINT},
-    {.name = "ntables", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "replica", .bytes = 2, .type = TSDB_DATA_TYPE_TINYINT},
-    {.name = "strict", .bytes = 9 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "duration", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "keep", .bytes = 24 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "buffer", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "pagesize", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "pages", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "minrows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "maxrows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "wal", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
-    {.name = "fsync", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "comp", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
-    {.name = "cachelast", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
-    {.name = "precision", .bytes = 2 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "single_stable", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},
-    {.name = "status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    // {.name = "update", .bytes = 1, .type = TSDB_DATA_TYPE_TINYINT},  // disable update
-};
-
-static const SInfosTableSchema userFuncSchema[] = {
-    {.name = "name", .bytes = TSDB_FUNC_NAME_LEN - 1 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "comment", .bytes = PATH_MAX - 1 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "aggregate", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "output_type", .bytes = TSDB_TYPE_STR_MAX_LEN - 1 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "code_len", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "bufsize", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-};
-
-static const SInfosTableSchema userIdxSchema[] = {
-    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "table_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "index_database", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "index_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "column_name", .bytes = SYSTABLE_SCH_COL_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "index_type", .bytes = 10, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "index_extensions", .bytes = 256, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema userStbsSchema[] = {
-    {.name = "stable_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "columns", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "tags", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "last_update", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "table_comment", .bytes = 1024 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema userTblsSchema[] = {
-    {.name = "table_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "columns", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "stable_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "uid", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "vgroup_id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "ttl", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "table_comment", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "type", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema userTblDistSchema[] = {
-    {.name = "db_name", .bytes = 32 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "table_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "distributed_histogram", .bytes = 500 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "min_of_rows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "max_of_rows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "avg_of_rows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "stddev_of_rows", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "rows", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "blocks", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "storage_size", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "compression_ratio", .bytes = 8, .type = TSDB_DATA_TYPE_DOUBLE},
-    {.name = "rows_in_mem", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "seek_header_time", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-};
-
-static const SInfosTableSchema userUsersSchema[] = {
-    {.name = "name", .bytes = TSDB_USER_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "privilege", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema grantsSchema[] = {
-    {.name = "version", .bytes = 8 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "expire time", .bytes = 19 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "expired", .bytes = 5 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "storage(GB)", .bytes = 21 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "timeseries", .bytes = 21 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "databases", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "users", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "accounts", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "dnodes", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "connections", .bytes = 11 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "streams", .bytes = 9 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "cpu cores", .bytes = 9 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "speed(PPS)", .bytes = 9 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "querytime", .bytes = 9 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema vgroupsSchema[] = {
-    {.name = "vgroup_id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "tables", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "v1_dnode", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "v1_status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "v2_dnode", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "v2_status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "v3_dnode", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "v3_status", .bytes = 10 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "status", .bytes = 12 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "nfiles", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "file_size", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-};
-
-static const SInfosTableSchema smaSchema[] = {
-    {.name = "sma_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "stable_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema transSchema[] = {
-    {.name = "id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "created_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "stage", .bytes = TSDB_TRANS_STAGE_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "db", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "type", .bytes = TSDB_TRANS_TYPE_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "last_exec_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "last_error", .bytes = (TSDB_TRANS_ERROR_LEN - 1) + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema configSchema[] = {
-    {.name = "name", .bytes = TSDB_CONFIG_OPTION_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "value", .bytes = TSDB_CONIIG_VALUE_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableSchema connSchema[] = {
-    {.name = "connId", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "user", .bytes = TSDB_USER_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "program", .bytes = TSDB_APP_NAME_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "pid", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "ip:port", .bytes = TSDB_IPv4ADDR_LEN + 6 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "login_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "last_access", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SInfosTableSchema querySchema[] = {
-    {.name = "queryId", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "connId", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "user", .bytes = TSDB_USER_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "ip:port", .bytes = TSDB_IPv4ADDR_LEN + 6 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "qid", .bytes = 22 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "created_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "time", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "sql_obj_id", .bytes = QUERY_OBJ_ID_SIZE + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "pid", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "ep", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "stable_query", .bytes = 1, .type = TSDB_DATA_TYPE_BOOL},
-    {.name = "sub_queries", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "sub_query_info", .bytes = TSDB_SHOW_SUBQUERY_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "sql", .bytes = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_VARCHAR},
-};
-
-static const SInfosTableMeta infosMeta[] = {
-    {TSDB_INS_TABLE_DNODES, dnodesSchema, tListLen(dnodesSchema)},
-    {TSDB_INS_TABLE_MNODES, mnodesSchema, tListLen(mnodesSchema)},
-    {TSDB_INS_TABLE_MODULES, modulesSchema, tListLen(modulesSchema)},
-    {TSDB_INS_TABLE_QNODES, qnodesSchema, tListLen(qnodesSchema)},
-    {TSDB_INS_TABLE_SNODES, snodesSchema, tListLen(snodesSchema)},
-    {TSDB_INS_TABLE_BNODES, bnodesSchema, tListLen(bnodesSchema)},
-    {TSDB_INS_TABLE_CLUSTER, clusterSchema, tListLen(clusterSchema)},
-    {TSDB_INS_TABLE_USER_DATABASES, userDBSchema, tListLen(userDBSchema)},
-    {TSDB_INS_TABLE_USER_FUNCTIONS, userFuncSchema, tListLen(userFuncSchema)},
-    {TSDB_INS_TABLE_USER_INDEXES, userIdxSchema, tListLen(userIdxSchema)},
-    {TSDB_INS_TABLE_USER_STABLES, userStbsSchema, tListLen(userStbsSchema)},
-    {TSDB_INS_TABLE_USER_TABLES, userTblsSchema, tListLen(userTblsSchema)},
-    {TSDB_INS_TABLE_USER_TABLE_DISTRIBUTED, userTblDistSchema, tListLen(userTblDistSchema)},
-    {TSDB_INS_TABLE_USER_USERS, userUsersSchema, tListLen(userUsersSchema)},
-    {TSDB_INS_TABLE_LICENCES, grantsSchema, tListLen(grantsSchema)},
-    {TSDB_INS_TABLE_VGROUPS, vgroupsSchema, tListLen(vgroupsSchema)},
-    {TSDB_INS_TABLE_TRANS, transSchema, tListLen(transSchema)},
-    {TSDB_INS_TABLE_SMAS, smaSchema, tListLen(smaSchema)},
-    {TSDB_INS_TABLE_CONFIGS, configSchema, tListLen(configSchema)},
-    {TSDB_INS_TABLE_CONNS, connSchema, tListLen(connSchema)},
-    {TSDB_INS_TABLE_QUERIES, querySchema, tListLen(querySchema)},
-};
-
-static int32_t mndInitInfosTableSchema(const SInfosTableSchema *pSrc, int32_t colNum, SSchema **pDst) {
+static int32_t mndInitInfosTableSchema(const SSysDbTableSchema *pSrc, int32_t colNum, SSchema **pDst) {
   SSchema *schema = taosMemoryCalloc(colNum, sizeof(SSchema));
   if (NULL == schema) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -288,11 +43,15 @@ static int32_t mndInsInitMeta(SHashObj *hash) {
   meta.sversion = 1;
   meta.tversion = 1;
 
-  for (int32_t i = 0; i < tListLen(infosMeta); ++i) {
-    tstrncpy(meta.tbName, infosMeta[i].name, sizeof(meta.tbName));
-    meta.numOfColumns = infosMeta[i].colNum;
+  size_t size = 0;
+  const SSysTableMeta* pInfosTableMeta = NULL;
+  getInfosDbMeta(&pInfosTableMeta, &size);
+
+  for (int32_t i = 0; i < size; ++i) {
+    tstrncpy(meta.tbName, pInfosTableMeta[i].name, sizeof(meta.tbName));
+    meta.numOfColumns = pInfosTableMeta[i].colNum;
 
-    if (mndInitInfosTableSchema(infosMeta[i].schema, infosMeta[i].colNum, &meta.pSchemas)) {
+    if (mndInitInfosTableSchema(pInfosTableMeta[i].schema, pInfosTableMeta[i].colNum, &meta.pSchemas)) {
       return -1;
     }
 

source/dnode/mnode/impl/src/mndMnode.c

@@ -619,14 +619,14 @@ static int32_t mndRetrieveMnodes(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
     colDataAppend(pColInfo, numOfRows, (const char *)&pObj->id, false);
 
     char b1[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(b1, pObj->pDnode->ep, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(b1, pObj->pDnode->ep, pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, b1, false);
 
     const char *roles = syncStr(pObj->role);
     char       *b2 = taosMemoryCalloc(1, strlen(roles) + VARSTR_HEADER_SIZE);
-    STR_WITH_MAXSIZE_TO_VARSTR(b2, roles, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(b2, roles, pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)b2, false);

source/dnode/mnode/impl/src/mndPerfSchema.c

@@ -14,92 +14,11 @@
  */
 
 #define _DEFAULT_SOURCE
-#include "mndPerfSchema.h"
 #include "mndInt.h"
-
-//!!!! Note: only APPEND columns in below tables, NO insert !!!!
-static const SPerfsTableSchema connectionsSchema[] = {
-    {.name = "conn_id", .bytes = 4, .type = TSDB_DATA_TYPE_UINT},
-    {.name = "user", .bytes = TSDB_USER_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "program", .bytes = TSDB_APP_NAME_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "pid", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "end_point", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "login_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "last_access", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-static const SPerfsTableSchema queriesSchema[] = {
-    {.name = "query_id", .bytes = 4, .type = TSDB_DATA_TYPE_UBIGINT},
-    {.name = "sql", .bytes = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "user", .bytes = TSDB_USER_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "pid", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "fqdn", .bytes = TSDB_FQDN_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "exec_time", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "sub_queries", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "sub_query_info", .bytes = TSDB_SHOW_SUBQUERY_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-};
-
-static const SPerfsTableSchema topicSchema[] = {
-    {.name = "topic_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "db_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "sql", .bytes = TSDB_SHOW_SQL_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    // TODO config
-};
-
-static const SPerfsTableSchema consumerSchema[] = {
-    {.name = "consumer_id", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "group_id", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "app_id", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "status", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "topics", .bytes = TSDB_SHOW_LIST_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "pid", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "end_point", .bytes = TSDB_EP_LEN + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "up_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "subscribe_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "rebalance_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-};
-
-static const SPerfsTableSchema subscriptionSchema[] = {
-    {.name = "topic_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "group_id", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "vgroup_id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "consumer_id", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-};
-
-static const SPerfsTableSchema offsetSchema[] = {
-    {.name = "topic_name", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "group_id", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "vgroup_id", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-    {.name = "committed_offset", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "current_offset", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "skip_log_cnt", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-};
-
-static const SPerfsTableSchema streamSchema[] = {
-    {.name = "stream_name", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "create_time", .bytes = 8, .type = TSDB_DATA_TYPE_TIMESTAMP},
-    {.name = "sql", .bytes = TSDB_SHOW_SQL_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "status", .bytes = 20 + VARSTR_HEADER_SIZE, .type = TSDB_DATA_TYPE_BINARY},
-    {.name = "source_db", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "target_db", .bytes = SYSTABLE_SCH_DB_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "target_table", .bytes = SYSTABLE_SCH_TABLE_NAME_LEN, .type = TSDB_DATA_TYPE_VARCHAR},
-    {.name = "watermark", .bytes = 8, .type = TSDB_DATA_TYPE_BIGINT},
-    {.name = "trigger", .bytes = 4, .type = TSDB_DATA_TYPE_INT},
-};
-
-static const SPerfsTableMeta perfsMeta[] = {
-    {TSDB_PERFS_TABLE_CONNECTIONS, connectionsSchema, tListLen(connectionsSchema)},
-    {TSDB_PERFS_TABLE_QUERIES, queriesSchema, tListLen(queriesSchema)},
-    {TSDB_PERFS_TABLE_TOPICS, topicSchema, tListLen(topicSchema)},
-    {TSDB_PERFS_TABLE_CONSUMERS, consumerSchema, tListLen(consumerSchema)},
-    {TSDB_PERFS_TABLE_SUBSCRIPTIONS, subscriptionSchema, tListLen(subscriptionSchema)},
-    {TSDB_PERFS_TABLE_OFFSETS, offsetSchema, tListLen(offsetSchema)},
-    {TSDB_PERFS_TABLE_STREAMS, streamSchema, tListLen(streamSchema)},
-};
+#include "systable.h"
 
 // connection/application/
-int32_t mndInitPerfsTableSchema(const SPerfsTableSchema *pSrc, int32_t colNum, SSchema **pDst) {
+int32_t mndInitPerfsTableSchema(const SSysDbTableSchema *pSrc, int32_t colNum, SSchema **pDst) {
   SSchema *schema = taosMemoryCalloc(colNum, sizeof(SSchema));
   if (NULL == schema) {
     terrno = TSDB_CODE_OUT_OF_MEMORY;
@@ -126,11 +45,15 @@ int32_t mndPerfsInitMeta(SHashObj *hash) {
   meta.sversion = 1;
   meta.tversion = 1;
 
-  for (int32_t i = 0; i < tListLen(perfsMeta); ++i) {
-    strcpy(meta.tbName, perfsMeta[i].name);
-    meta.numOfColumns = perfsMeta[i].colNum;
+  size_t size = 0;
+  const SSysTableMeta* pSysDbTableMeta = NULL;
+  getPerfDbMeta(&pSysDbTableMeta, &size);
+
+  for (int32_t i = 0; i < size; ++i) {
+    strcpy(meta.tbName, pSysDbTableMeta[i].name);
+    meta.numOfColumns = pSysDbTableMeta[i].colNum;
 
-    if (mndInitPerfsTableSchema(perfsMeta[i].schema, perfsMeta[i].colNum, &meta.pSchemas)) {
+    if (mndInitPerfsTableSchema(pSysDbTableMeta[i].schema, pSysDbTableMeta[i].colNum, &meta.pSchemas)) {
       return -1;
     }
 
@@ -166,7 +89,6 @@ int32_t mndBuildPerfsTableSchema(SMnode *pMnode, const char *dbFName, const char
   }
 
   memcpy(pRsp->pSchemas, meta->pSchemas, meta->numOfColumns * sizeof(SSchema));
-
   return 0;
 }
 

source/dnode/mnode/impl/src/mndProfile.c

@@ -570,38 +570,39 @@ static int32_t mndRetrieveConns(SNodeMsg *pReq, SShowObj *pShow, char *data, int
     if (pConn == NULL) break;
 
     cols = 0;
-
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+#if 0
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
     *(uint32_t *)pWrite = pConn->id;
     cols++;
 
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->user, pShow->bytes[cols]);
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->user, pShow->pMeta->pSchemas[cols].bytes);
     cols++;
 
     // app name
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->app, pShow->bytes[cols]);
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->app, pShow->pMeta->pSchemas[cols].bytes);
     cols++;
 
     // app pid
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
     *(int32_t *)pWrite = pConn->pid;
     cols++;
 
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
     taosIpPort2String(pConn->ip, pConn->port, ipStr);
-    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(pWrite, ipStr, pShow->pMeta->pSchemas[cols].bytes);
     cols++;
 
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
     *(int64_t *)pWrite = pConn->loginTimeMs;
     cols++;
 
-    pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+    pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
     if (pConn->lastAccessTimeMs < pConn->loginTimeMs) pConn->lastAccessTimeMs = pConn->loginTimeMs;
     *(int64_t *)pWrite = pConn->lastAccessTimeMs;
     cols++;
+#endif
 
     numOfRows++;
   }
@@ -643,67 +644,67 @@ static int32_t mndRetrieveQueries(SNodeMsg *pReq, SShowObj *pShow, char *data, i
       SQueryDesc *pDesc = pConn->pQueries + i;
       cols = 0;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int64_t *)pWrite = htobe64(pDesc->queryId);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int64_t *)pWrite = htobe64(pConn->id);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->user, pShow->bytes[cols]);
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pConn->user, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       snprintf(str, tListLen(str), "%s:%u", taosIpStr(pConn->ip), pConn->port);
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, str, pShow->bytes[cols]);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, str, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
       char handleBuf[24] = {0};
       snprintf(handleBuf, tListLen(handleBuf), "%" PRIu64, htobe64(pDesc->qId));
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
 
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, handleBuf, pShow->bytes[cols]);
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, handleBuf, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int64_t *)pWrite = htobe64(pDesc->stime);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int64_t *)pWrite = htobe64(pDesc->useconds);
       cols++;
 
       snprintf(str, tListLen(str), "0x%" PRIx64, htobe64(pDesc->sqlObjId));
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, str, pShow->bytes[cols]);
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, str, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int32_t *)pWrite = htonl(pDesc->pid);
       cols++;
 
       char epBuf[TSDB_EP_LEN + 1] = {0};
       snprintf(epBuf, tListLen(epBuf), "%s:%u", pDesc->fqdn, pConn->port);
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, epBuf, pShow->bytes[cols]);
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, epBuf, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(bool *)pWrite = pDesc->stableQuery;
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
       *(int32_t *)pWrite = htonl(pDesc->numOfSub);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->subSqlInfo, pShow->bytes[cols]);
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->subSqlInfo, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
-      pWrite = data + pShow->offset[cols] * rows + pShow->bytes[cols] * numOfRows;
-      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, pShow->bytes[cols]);
+      pWrite = data + pShow->offset[cols] * rows + pShow->pMeta->pSchemas[cols].bytes * numOfRows;
+      STR_WITH_MAXSIZE_TO_VARSTR(pWrite, pDesc->sql, pShow->pMeta->pSchemas[cols].bytes);
       cols++;
 
       numOfRows++;

source/dnode/mnode/impl/src/mndQnode.c

@@ -517,7 +517,7 @@ static int32_t mndRetrieveQnodes(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
     colDataAppend(pColInfo, numOfRows, (const char *)&pObj->id, false);
 
     char ep[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(ep, pObj->pDnode->ep, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(ep, pObj->pDnode->ep, pShow->pMeta->pSchemas[cols].bytes);
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)ep, false);
 

source/dnode/mnode/impl/src/mndQuery.c

@@ -20,7 +20,7 @@
 
 int32_t mndProcessQueryMsg(SNodeMsg *pReq) {
   SMnode     *pMnode = pReq->pNode;
-  SReadHandle handle = {0};
+  SReadHandle handle = {.mnd = pMnode};
 
   mTrace("msg:%p, in query queue is processing", pReq);
   switch (pReq->rpcMsg.msgType) {

source/dnode/mnode/impl/src/mndScheduler.c

@@ -308,8 +308,7 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
         // sink part
         if (level == 0) {
           // only for inplace
-          pTask->sinkType = TASK_SINK__SHOW;
-          pTask->showSink.reserved = 0;
+          pTask->sinkType = TASK_SINK__NONE;
           if (!hasExtraSink) {
 #if 1
             if (pStream->createdBy == STREAM_CREATED_BY__SMA) {
@@ -368,8 +367,7 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
       pTask->sourceType = TASK_SOURCE__PIPE;
 
       // sink part
-      pTask->sinkType = TASK_SINK__SHOW;
-      /*pTask->sinkType = TASK_SINK__NONE;*/
+      pTask->sinkType = TASK_SINK__NONE;
 
       // dispatch part
       ASSERT(hasExtraSink);
@@ -456,7 +454,7 @@ int32_t mndScheduleStream(SMnode* pMnode, STrans* pTrans, SStreamObj* pStream) {
       pTask->sourceType = TASK_SOURCE__MERGE;
 
       // sink part
-      pTask->sinkType = TASK_SINK__SHOW;
+      pTask->sinkType = TASK_SINK__NONE;
 
       // dispatch part
       pTask->dispatchType = TASK_DISPATCH__NONE;

source/dnode/mnode/impl/src/mndShow.c

@@ -15,6 +15,7 @@
 
 #define _DEFAULT_SOURCE
 #include "mndShow.h"
+#include "systable.h"
 
 #define SHOW_STEP_SIZE 100
 
@@ -47,7 +48,7 @@ void mndCleanupShow(SMnode *pMnode) {
   }
 }
 
-static int32_t convertToRetrieveType(char* name, int32_t len) {
+static int32_t convertToRetrieveType(char *name, int32_t len) {
   int32_t type = -1;
 
   if (strncasecmp(name, TSDB_INS_TABLE_DNODES, len) == 0) {
@@ -72,8 +73,6 @@ static int32_t convertToRetrieveType(char* name, int32_t len) {
     //    type = TSDB_MGMT_TABLE_INDEX;
   } else if (strncasecmp(name, TSDB_INS_TABLE_USER_STABLES, len) == 0) {
     type = TSDB_MGMT_TABLE_STB;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_USER_STREAMS, len) == 0) {
-    type = TSDB_MGMT_TABLE_STREAMS;
   } else if (strncasecmp(name, TSDB_INS_TABLE_USER_TABLES, len) == 0) {
     type = TSDB_MGMT_TABLE_TABLE;
   } else if (strncasecmp(name, TSDB_INS_TABLE_USER_TABLE_DISTRIBUTED, len) == 0) {
@@ -84,26 +83,28 @@ static int32_t convertToRetrieveType(char* name, int32_t len) {
     type = TSDB_MGMT_TABLE_GRANTS;
   } else if (strncasecmp(name, TSDB_INS_TABLE_VGROUPS, len) == 0) {
     type = TSDB_MGMT_TABLE_VGROUP;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_CONSUMERS, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_CONSUMERS, len) == 0) {
     type = TSDB_MGMT_TABLE_CONSUMERS;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_SUBSCRIBES, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_SUBSCRIBES, len) == 0) {
     type = TSDB_MGMT_TABLE_SUBSCRIBES;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_TRANS, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_TRANS, len) == 0) {
     type = TSDB_MGMT_TABLE_TRANS;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_SMAS, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_SMAS, len) == 0) {
     type = TSDB_MGMT_TABLE_SMAS;
   } else if (strncasecmp(name, TSDB_INS_TABLE_CONFIGS, len) == 0) {
     type = TSDB_MGMT_TABLE_CONFIGS;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_CONNS, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_CONNECTIONS, len) == 0) {
     type = TSDB_MGMT_TABLE_CONNS;
-  } else if (strncasecmp(name, TSDB_INS_TABLE_QUERIES, len) == 0) {
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_QUERIES, len) == 0) {
     type = TSDB_MGMT_TABLE_QUERIES;
   } else if (strncasecmp(name, TSDB_INS_TABLE_VNODES, len) == 0) {
     type = TSDB_MGMT_TABLE_VNODES;
   } else if (strncasecmp(name, TSDB_PERFS_TABLE_TOPICS, len) == 0) {
     type = TSDB_MGMT_TABLE_TOPICS;
+  } else if (strncasecmp(name, TSDB_PERFS_TABLE_STREAMS, len) == 0) {
+    type = TSDB_MGMT_TABLE_STREAMS;
   } else {
-//    ASSERT(0);
+    //    ASSERT(0);
   }
 
   return type;
@@ -208,16 +209,6 @@ static int32_t mndProcessRetrieveSysTableReq(SNodeMsg *pReq) {
 
     pShow->pMeta = pMeta;
     pShow->numOfColumns = pShow->pMeta->numOfColumns;
-    int32_t offset = 0;
-
-    for (int32_t i = 0; i < pShow->pMeta->numOfColumns; ++i) {
-      pShow->offset[i] = offset;
-
-      int32_t bytes = pShow->pMeta->pSchemas[i].bytes;
-      pShow->rowSize += bytes;
-      pShow->bytes[i] = bytes;
-      offset += bytes;
-    }
   } else {
     pShow = mndAcquireShowObj(pMnode, retrieveReq.showId);
     if (pShow == NULL) {

source/dnode/mnode/impl/src/mndSnode.c

@@ -463,7 +463,7 @@ static int32_t mndRetrieveSnodes(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
     colDataAppend(pColInfo, numOfRows, (const char *)&pObj->id, false);
 
     char ep[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(ep, pObj->pDnode->ep, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(ep, pObj->pDnode->ep, pShow->pMeta->pSchemas[cols].bytes);
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)ep, false);

source/dnode/mnode/impl/src/mndStream.c

@@ -308,6 +308,8 @@ static int32_t mndCreateStream(SMnode *pMnode, SNodeMsg *pReq, SCMCreateStreamRe
   streamObj.smaId = 0;
   /*streamObj.physicalPlan = "";*/
   streamObj.logicalPlan = "not implemented";
+  streamObj.trigger = pCreate->triggerType;
+  streamObj.waterMark = pCreate->watermark;
 
   STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_TYPE_CREATE_STREAM, &pReq->rpcMsg);
   if (pTrans == NULL) {
@@ -431,7 +433,7 @@ static int32_t mndRetrieveStream(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
   SStreamObj *pStream = NULL;
 
   while (numOfRows < rows) {
-    pShow->pIter = sdbFetch(pSdb, SDB_TOPIC, pShow->pIter, (void **)&pStream);
+    pShow->pIter = sdbFetch(pSdb, SDB_STREAM, pShow->pIter, (void **)&pStream);
     if (pShow->pIter == NULL) break;
 
     SColumnInfoData *pColInfo;
@@ -471,8 +473,13 @@ static int32_t mndRetrieveStream(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *p
 
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)&pStream->trigger, false);
+
+    numOfRows++;
+    sdbRelease(pSdb, pStream);
   }
-  return 0;
+
+  pShow->numOfRows += numOfRows;
+  return numOfRows;
 }
 
 static void mndCancelGetNextStream(SMnode *pMnode, void *pIter) {

source/dnode/mnode/impl/src/mndSubscribe.c

@@ -452,7 +452,10 @@ static int32_t mndPersistRebResult(SMnode *pMnode, SNodeMsg *pMsg, const SMqRebO
   }
   // 4. TODO commit log: modification log
 
-  // 5. execution
+  // 5. set cb
+  mndTransSetCb(pTrans, MQ_REB_TRANS_START_FUNC, MQ_REB_TRANS_STOP_FUNC, NULL, 0);
+
+  // 6. execution
   if (mndTransPrepare(pMnode, pTrans) != 0) goto REB_FAIL;
 
   mndTransDrop(pTrans);
@@ -518,9 +521,9 @@ static int32_t mndProcessRebalanceReq(SNodeMsg *pMsg) {
   }
 
   // reset flag
-  atomic_store_8(pReq->mqInReb, 0);
   mInfo("mq rebalance completed successfully");
   taosHashCleanup(pReq->rebSubHash);
+  mndRebEnd();
 
   return 0;
 }

source/dnode/mnode/impl/src/mndTrans.c

@@ -16,6 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "mndTrans.h"
 #include "mndAuth.h"
+#include "mndConsumer.h"
 #include "mndDb.h"
 #include "mndShow.h"
 #include "mndSync.h"
@@ -442,6 +443,10 @@ static TransCbFp mndTransGetCbFp(ETrnFuncType ftype) {
       return mndTransTestStartFunc;
     case TEST_TRANS_STOP_FUNC:
       return mndTransTestStopFunc;
+    case MQ_REB_TRANS_START_FUNC:
+      return mndRebCntInc;
+    case MQ_REB_TRANS_STOP_FUNC:
+      return mndRebCntDec;
     default:
       return NULL;
   }
@@ -1346,17 +1351,17 @@ static int32_t mndRetrieveTrans(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     colDataAppend(pColInfo, numOfRows, (const char *)&pTrans->createdTime, false);
 
     char stage[TSDB_TRANS_STAGE_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(stage, mndTransStr(pTrans->stage), pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(stage, mndTransStr(pTrans->stage), pShow->pMeta->pSchemas[cols].bytes);
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)stage, false);
 
     char dbname[TSDB_DB_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(dbname, mndGetDbStr(pTrans->dbname), pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(dbname, mndGetDbStr(pTrans->dbname), pShow->pMeta->pSchemas[cols].bytes);
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)dbname, false);
 
     char transType[TSDB_TRANS_TYPE_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(dbname, mndTransType(pTrans->transType), pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(dbname, mndTransType(pTrans->transType), pShow->pMeta->pSchemas[cols].bytes);
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)transType, false);
 
@@ -1364,7 +1369,7 @@ static int32_t mndRetrieveTrans(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     colDataAppend(pColInfo, numOfRows, (const char *)&pTrans->lastExecTime, false);
 
     char lastError[TSDB_TRANS_ERROR_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(dbname, pTrans->lastError, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(dbname, pTrans->lastError, pShow->pMeta->pSchemas[cols].bytes);
     pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
     colDataAppend(pColInfo, numOfRows, (const char *)lastError, false);
 

source/dnode/mnode/impl/src/mndUser.c

@@ -657,7 +657,7 @@ static int32_t mndRetrieveUsers(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock *pB
     SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols);
 
     char name[TSDB_USER_LEN + VARSTR_HEADER_SIZE] = {0};
-    STR_WITH_MAXSIZE_TO_VARSTR(name, pUser->user, pShow->bytes[cols]);
+    STR_WITH_MAXSIZE_TO_VARSTR(name, pUser->user, pShow->pMeta->pSchemas[cols].bytes);
 
     colDataAppend(pColInfo, numOfRows, (const char *)name, false);
 

source/dnode/mnode/impl/src/mndVgroup.c

@@ -540,7 +540,7 @@ static int32_t mndRetrieveVgroups(SNodeMsg *pReq, SShowObj *pShow, SSDataBlock*
 
         char        buf1[20] = {0};
         const char *role = syncStr(pVgroup->vnodeGid[i].role);
-        STR_WITH_MAXSIZE_TO_VARSTR(buf1, role, pShow->bytes[cols]);
+        STR_WITH_MAXSIZE_TO_VARSTR(buf1, role,   pShow->pMeta->pSchemas[cols].bytes);
 
         pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
         colDataAppend(pColInfo, numOfRows, (const char *)buf1, false);

source/dnode/vnode/inc/vnode.h

@@ -92,16 +92,16 @@ int         metaTbCursorNext(SMTbCursor *pTbCur);
 #endif
 
 // tsdb
-typedef struct STsdb STsdb;
+// typedef struct STsdb STsdb;
 typedef void        *tsdbReaderT;
 
 #define BLOCK_LOAD_OFFSET_SEQ_ORDER 1
 #define BLOCK_LOAD_TABLE_SEQ_ORDER  2
 #define BLOCK_LOAD_TABLE_RR_ORDER   3
 
-tsdbReaderT *tsdbQueryTables(STsdb *tsdb, SQueryTableDataCond *pCond, STableGroupInfo *tableInfoGroup, uint64_t qId,
+tsdbReaderT *tsdbQueryTables(SVnode *pVnode, SQueryTableDataCond *pCond, STableGroupInfo *tableInfoGroup, uint64_t qId,
                              uint64_t taskId);
-tsdbReaderT  tsdbQueryCacheLast(STsdb *tsdb, SQueryTableDataCond *pCond, STableGroupInfo *groupList, uint64_t qId,
+tsdbReaderT  tsdbQueryCacheLast(SVnode *pVnode, SQueryTableDataCond *pCond, STableGroupInfo *groupList, uint64_t qId,
                                 void *pMemRef);
 int32_t      tsdbGetFileBlocksDistInfo(tsdbReaderT *pReader, STableBlockDistInfo *pTableBlockInfo);
 bool         isTsdbCacheLastRow(tsdbReaderT *pReader);
@@ -116,7 +116,7 @@ SArray      *tsdbRetrieveDataBlock(tsdbReaderT *pTsdbReadHandle, SArray *pColumn
 void         tsdbResetReadHandle(tsdbReaderT queryHandle, SQueryTableDataCond *pCond);
 void         tsdbDestroyTableGroup(STableGroupInfo *pGroupList);
 int32_t      tsdbGetOneTableGroup(void *pMeta, uint64_t uid, TSKEY startKey, STableGroupInfo *pGroupInfo);
-int32_t      tsdbGetTableGroupFromIdList(STsdb *tsdb, SArray *pTableIdList, STableGroupInfo *pGroupInfo);
+int32_t      tsdbGetTableGroupFromIdList(SVnode *pVnode, SArray *pTableIdList, STableGroupInfo *pGroupInfo);
 
 // tq
 

source/dnode/vnode/src/inc/vnodeInt.h

@@ -95,6 +95,11 @@ int32_t tsdbUpdateSmaWindow(STsdb* pTsdb, SSubmitReq* pMsg, int64_t version);
 int32_t      tsdbCreateTSma(STsdb* pTsdb, char* pMsg);
 int32_t      tsdbInsertTSmaData(STsdb* pTsdb, int64_t indexUid, const char* msg);
 int          tsdbInsertData(STsdb* pTsdb, int64_t version, SSubmitReq* pMsg, SSubmitRsp* pRsp);
+tsdbReaderT* tsdbQueryTablesT(STsdb* tsdb, SQueryTableDataCond* pCond, STableGroupInfo* groupList, uint64_t qId,
+                              uint64_t taskId);
+tsdbReaderT  tsdbQueryCacheLastT(STsdb* tsdb, SQueryTableDataCond* pCond, STableGroupInfo* groupList, uint64_t qId,
+                                 void* pMemRef);
+int32_t      tsdbGetTableGroupFromIdListT(STsdb* tsdb, SArray* pTableIdList, STableGroupInfo* pGroupInfo);
 
 // tq
 STQ*    tqOpen(const char* path, SVnode* pVnode, SWal* pWal);

source/dnode/vnode/src/meta/metaQuery.c

@@ -159,7 +159,7 @@ SSchemaWrapper *metaGetTableSchema(SMeta *pMeta, tb_uid_t uid, int32_t sver, boo
 
   // decode
   pBuf = pVal;
-  pSW = taosMemoryMalloc(sizeof(pSW));
+  pSW = taosMemoryMalloc(sizeof(SSchemaWrapper));
 
   tCoderInit(&coder, TD_LITTLE_ENDIAN, pVal, vLen, TD_DECODER);
   tDecodeSSchemaWrapper(&coder, pSW);

source/dnode/vnode/src/tq/tq.c

@@ -864,7 +864,7 @@ int32_t tqExpandTask(STQ* pTq, SStreamTask* pTask, int32_t parallel) {
 }
 
 int32_t tqProcessTaskDeploy(STQ* pTq, char* msg, int32_t msgLen) {
-  SStreamTask* pTask = taosMemoryMalloc(sizeof(SStreamTask));
+  SStreamTask* pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
   if (pTask == NULL) {
     return -1;
   }

source/dnode/vnode/src/tsdb/tsdbRead.c

@@ -422,7 +422,7 @@ _end:
   return NULL;
 }
 
-tsdbReaderT* tsdbQueryTables(STsdb* tsdb, SQueryTableDataCond* pCond, STableGroupInfo* groupList, uint64_t qId,
+tsdbReaderT* tsdbQueryTablesT(STsdb* tsdb, SQueryTableDataCond* pCond, STableGroupInfo* groupList, uint64_t qId,
                              uint64_t taskId) {
   STsdbReadHandle* pTsdbReadHandle = tsdbQueryTablesImpl(tsdb, pCond, qId, taskId);
   if (pTsdbReadHandle == NULL) {
@@ -535,7 +535,7 @@ tsdbReaderT tsdbQueryLastRow(STsdb* tsdb, SQueryTableDataCond* pCond, STableGrou
     return NULL;
   }
 
-  STsdbReadHandle* pTsdbReadHandle = (STsdbReadHandle*)tsdbQueryTables(tsdb, pCond, groupList, qId, taskId);
+  STsdbReadHandle* pTsdbReadHandle = (STsdbReadHandle*)tsdbQueryTablesT(tsdb, pCond, groupList, qId, taskId);
   if (pTsdbReadHandle == NULL) {
     return NULL;
   }
@@ -555,8 +555,8 @@ tsdbReaderT tsdbQueryLastRow(STsdb* tsdb, SQueryTableDataCond* pCond, STableGrou
 }
 
 #if 0
-tsdbReaderT tsdbQueryCacheLast(STsdb *tsdb, SQueryTableDataCond *pCond, STableGroupInfo *groupList, uint64_t qId, STsdbMemTable* pMemRef) {
-  STsdbReadHandle *pTsdbReadHandle = (STsdbReadHandle*) tsdbQueryTables(tsdb, pCond, groupList, qId, pMemRef);
+tsdbReaderT tsdbQueryCacheLastT(STsdb *tsdb, SQueryTableDataCond *pCond, STableGroupInfo *groupList, uint64_t qId, STsdbMemTable* pMemRef) {
+  STsdbReadHandle *pTsdbReadHandle = (STsdbReadHandle*) tsdbQueryTablesT(tsdb, pCond, groupList, qId, pMemRef);
   if (pTsdbReadHandle == NULL) {
     return NULL;
   }
@@ -634,7 +634,7 @@ tsdbReaderT tsdbQueryRowsInExternalWindow(STsdb* tsdb, SQueryTableDataCond* pCon
     }
   }
 
-  STsdbReadHandle* pTsdbReadHandle = (STsdbReadHandle*)tsdbQueryTables(tsdb, pCond, pNew, qId, taskId);
+  STsdbReadHandle* pTsdbReadHandle = (STsdbReadHandle*)tsdbQueryTablesT(tsdb, pCond, pNew, qId, taskId);
   pTsdbReadHandle->loadExternalRow = true;
   pTsdbReadHandle->currentLoadExternalRows = true;
 
@@ -3717,7 +3717,7 @@ _error:
 }
 
 #if 0
-int32_t tsdbGetTableGroupFromIdList(STsdb* tsdb, SArray* pTableIdList, STableGroupInfo* pGroupInfo) {
+int32_t tsdbGetTableGroupFromIdListT(STsdb* tsdb, SArray* pTableIdList, STableGroupInfo* pGroupInfo) {
   if (tsdbRLockRepoMeta(tsdb) < 0) {
     return terrno;
   }

source/dnode/vnode/src/vnd/vnodeQuery.c

@@ -148,3 +148,23 @@ void vnodeGetInfo(SVnode *pVnode, const char **dbname, int32_t *vgId) {
     *vgId = TD_VID(pVnode);
   }
 }
+
+// wrapper of tsdb read interface
+// TODO: use FORCE_INLINE if possible later
+tsdbReaderT *tsdbQueryTables(SVnode *pVnode, SQueryTableDataCond *pCond, STableGroupInfo *tableInfoGroup, uint64_t qId,
+                             uint64_t taskId) {
+  return tsdbQueryTablesT(pVnode->pTsdb, pCond, tableInfoGroup, qId, taskId);
+}
+tsdbReaderT tsdbQueryCacheLast(SVnode *pVnode, SQueryTableDataCond *pCond, STableGroupInfo *groupList, uint64_t qId,
+                               void *pMemRef) {
+#if 0
+  return tsdbQueryCacheLastT(pVnode->pTsdb, pCond, groupList, qId, pMemRef);
+#endif
+  return 0;
+}
+int32_t tsdbGetTableGroupFromIdList(SVnode *pVnode, SArray *pTableIdList, STableGroupInfo *pGroupInfo) {
+#if 0
+  return tsdbGetTableGroupFromIdListT(pVnode->pTsdb, pTableIdList, pGroupInfo);
+#endif
+  return 0;
+}
\ No newline at end of file

source/dnode/vnode/src/vnd/vnodeSvr.c

@@ -141,8 +141,10 @@ _err:
 
 int vnodeProcessQueryMsg(SVnode *pVnode, SRpcMsg *pMsg) {
   vTrace("message in vnode query queue is processing");
+#if 0
   SReadHandle handle = {.reader = pVnode->pTsdb, .meta = pVnode->pMeta, .config = &pVnode->config, .vnode = pVnode};
-
+#endif
+  SReadHandle handle = {.meta = pVnode->pMeta, .config = &pVnode->config, .vnode = pVnode};
   switch (pMsg->msgType) {
     case TDMT_VND_QUERY:
       return qWorkerProcessQueryMsg(&handle, pVnode->pQuery, pMsg);

source/libs/catalog/src/catalog.c

@@ -17,6 +17,7 @@
 #include "query.h"
 #include "tname.h"
 #include "catalogInt.h"
+#include "systable.h"
 
 int32_t ctgActUpdateVg(SCtgMetaAction *action);
 int32_t ctgActUpdateTbl(SCtgMetaAction *action);

source/libs/executor/inc/executorimpl.h

@@ -640,6 +640,7 @@ int32_t getTableScanOrder(SOperatorInfo* pOperator);
 void    doSetOperatorCompleted(SOperatorInfo* pOperator);
 void    doFilter(const SNode* pFilterNode, SSDataBlock* pBlock);
 SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput, int32_t** rowCellInfoOffset);
+void    relocateColumnData(SSDataBlock* pBlock, const SArray* pColMatchInfo, SArray* pCols);
 
 SOperatorInfo* createExchangeOperatorInfo(const SNodeList* pSources, SSDataBlock* pBlock, SExecTaskInfo* pTaskInfo);
 
@@ -694,7 +695,7 @@ SOperatorInfo* createMultiTableTimeIntervalOperatorInfo(STaskRuntimeEnv* pRuntim
                                                         SExprInfo* pExpr, int32_t numOfOutput);
 #endif
 
-void projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBlock* pSrcBlock, SqlFunctionCtx* pCtx,
+int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBlock* pSrcBlock, SqlFunctionCtx* pCtx,
                            int32_t numOfOutput, SArray* pPseudoList);
 
 void setInputDataBlock(SOperatorInfo* pOperator, SqlFunctionCtx* pCtx, SSDataBlock* pBlock, int32_t order, bool createDummyCol);

source/libs/executor/src/dataDispatcher.c

@@ -31,6 +31,7 @@ typedef struct SDataDispatchBuf {
 typedef struct SDataCacheEntry {
   int32_t dataLen;
   int32_t numOfRows;
+  int32_t numOfCols;
   int8_t  compressed;
   char    data[];
 } SDataCacheEntry;
@@ -76,6 +77,7 @@ static void toDataCacheEntry(const SDataDispatchHandle* pHandle, const SInputDat
   SDataCacheEntry* pEntry = (SDataCacheEntry*)pBuf->pData;
   pEntry->compressed = (int8_t)needCompress(pInput->pData, numOfCols);
   pEntry->numOfRows = pInput->pData->info.rows;
+  pEntry->numOfCols = pInput->pData->info.numOfCols;
   pEntry->dataLen = 0;
 
   pBuf->useSize = sizeof(SRetrieveTableRsp);
@@ -169,6 +171,7 @@ static int32_t getDataBlock(SDataSinkHandle* pHandle, SOutputData* pOutput) {
   SDataCacheEntry* pEntry = (SDataCacheEntry*)(pDispatcher->nextOutput.pData);
   memcpy(pOutput->pData, pEntry->data, pEntry->dataLen);
   pOutput->numOfRows = pEntry->numOfRows;
+  pOutput->numOfCols = pEntry->numOfCols;
   pOutput->compressed = pEntry->compressed;
   taosMemoryFreeClear(pDispatcher->nextOutput.pData);  // todo persistent
   pOutput->bufStatus = updateStatus(pDispatcher);

source/libs/executor/src/scanoperator.c

@@ -13,7 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <common/ttime.h>
+#include "common/ttime.h"
 #include "filter.h"
 #include "function.h"
 #include "functionMgt.h"
@@ -21,7 +21,7 @@
 #include "querynodes.h"
 #include "tglobal.h"
 #include "tname.h"
-#include "vnode.h"
+#include "systable.h"
 
 #include "tdatablock.h"
 #include "tmsg.h"
@@ -36,6 +36,9 @@
 #define SET_REVERSE_SCAN_FLAG(_info) ((_info)->scanFlag = REVERSE_SCAN)
 #define SWITCH_ORDER(n)              (((n) = ((n) == TSDB_ORDER_ASC) ? TSDB_ORDER_DESC : TSDB_ORDER_ASC))
 
+int32_t buildSysDbTableInfo(const SSysTableScanInfo* pInfo);
+
+int32_t buildDbTableInfoBlock(const SSDataBlock* p, const SSysTableMeta* pSysDbTableMeta, size_t size, const char* dbName);
 void switchCtxOrder(SqlFunctionCtx* pCtx, int32_t numOfOutput) {
   for (int32_t i = 0; i < numOfOutput; ++i) {
     SWITCH_ORDER(pCtx[i].order);
@@ -65,21 +68,6 @@ static void setupQueryRangeForReverseScan(STableScanInfo* pTableScanInfo) {
 #endif
 }
 
-// relocated the column data according to the slotId
-static void relocateColumnData(SSDataBlock* pBlock, const SArray* pColMatchInfo, SArray* pCols) {
-  int32_t numOfCols = pBlock->info.numOfCols;
-  for (int32_t i = 0; i < numOfCols; ++i) {
-    SColumnInfoData* p = taosArrayGet(pCols, i);
-    SColMatchInfo*   pmInfo = taosArrayGet(pColMatchInfo, i);
-    if (!pmInfo->output) {
-      continue;
-    }
-
-    ASSERT(pmInfo->colId == p->info.colId);
-    taosArraySet(pBlock->pDataBlock, pmInfo->targetSlotId, p);
-  }
-}
-
 static void getNextTimeWindow(SInterval* pInterval, STimeWindow* tw, int32_t order) {
   int32_t factor = GET_FORWARD_DIRECTION_FACTOR(order);
   if (pInterval->intervalUnit != 'n' && pInterval->intervalUnit != 'y') {
@@ -244,11 +232,6 @@ int32_t loadDataBlock(SOperatorInfo* pOperator, STableScanInfo* pTableScanInfo,
   }
 
   relocateColumnData(pBlock, pTableScanInfo->pColMatchInfo, pCols);
-
-  // reset the block to be 0 by default, this blockId is assigned by physical plan and is used by direct upstream
-  // operator.
-  pBlock->info.blockId = 0;
-
   doFilter(pTableScanInfo->pFilterNode, pBlock);
   if (pBlock->info.rows == 0) {
     pCost->filterOutBlocks += 1;
@@ -788,7 +771,12 @@ static SSDataBlock* doFilterResult(SSysTableScanInfo* pInfo) {
           continue;
         }
 
+        if (colDataIsNull_s(pSrc, j)) {
+          colDataAppendNULL(pDest, numOfRow);
+        } else {
           colDataAppend(pDest, numOfRow, colDataGetData(pSrc, j), false);
+        }
+
         numOfRow += 1;
       }
     } else {
@@ -802,6 +790,67 @@ static SSDataBlock* doFilterResult(SSysTableScanInfo* pInfo) {
   return pInfo->pRes->info.rows == 0 ? NULL : pInfo->pRes;
 }
 
+static SSDataBlock* buildSysTableMetaBlock() {
+  SSDataBlock* pBlock = taosMemoryCalloc(1, sizeof(SSDataBlock));
+  pBlock->info.numOfCols = 10;
+  pBlock->info.hasVarCol = true;
+
+  pBlock->pDataBlock = taosArrayInit(pBlock->info.numOfCols, sizeof(SColumnInfoData));
+
+  SColumnInfoData colInfoData = {0};
+  colInfoData.info.colId = 1;
+  colInfoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  colInfoData.info.bytes = (TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 2;
+  colInfoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  colInfoData.info.bytes = (TSDB_DB_NAME_LEN - 1) + VARSTR_HEADER_SIZE;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 3;
+  colInfoData.info.type = TSDB_DATA_TYPE_TIMESTAMP;
+  colInfoData.info.bytes = 8;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 4;
+  colInfoData.info.type = TSDB_DATA_TYPE_INT;
+  colInfoData.info.bytes = 4;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 5;
+  colInfoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  colInfoData.info.bytes = (TSDB_TABLE_NAME_LEN - 1) + VARSTR_HEADER_SIZE;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 6;
+  colInfoData.info.type = TSDB_DATA_TYPE_BIGINT;
+  colInfoData.info.bytes = 8;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 7;
+  colInfoData.info.type = TSDB_DATA_TYPE_INT;
+  colInfoData.info.bytes = 4;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 8;
+  colInfoData.info.type = TSDB_DATA_TYPE_INT;
+  colInfoData.info.bytes = 4;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 9;
+  colInfoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  colInfoData.info.bytes = 512 + VARSTR_HEADER_SIZE;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  colInfoData.info.colId = 10;
+  colInfoData.info.type = TSDB_DATA_TYPE_VARCHAR;
+  colInfoData.info.bytes = 20 + VARSTR_HEADER_SIZE;
+  taosArrayPush(pBlock->pDataBlock, &colInfoData);
+
+  return pBlock;
+}
+
 static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
   // build message and send to mnode to fetch the content of system tables.
   SExecTaskInfo*     pTaskInfo = pOperator->pTaskInfo;
@@ -810,15 +859,26 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
   // retrieve local table list info from vnode
   const char* name = tNameGetTableName(&pInfo->name);
   if (strncasecmp(name, TSDB_INS_TABLE_USER_TABLES, TSDB_TABLE_FNAME_LEN) == 0) {
+    // the retrieve is executed on the mnode, so return tables that belongs to the information schema database.
+    if (pInfo->readHandle.mnd != NULL) {
+      if (pOperator->status == OP_EXEC_DONE) {
+        return NULL;
+      }
+
+      buildSysDbTableInfo(pInfo);
+
+      doFilterResult(pInfo);
+      pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
+
+      pOperator->status = OP_EXEC_DONE;
+      return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
+    } else {
       if (pInfo->pCur == NULL) {
         pInfo->pCur = metaOpenTbCursor(pInfo->readHandle.meta);
       }
 
       blockDataCleanup(pInfo->pRes);
 
-    int32_t          tableNameSlotId = 1;
-    SColumnInfoData* pTableNameCol = taosArrayGet(pInfo->pRes->pDataBlock, tableNameSlotId);
-
       int32_t numOfRows = 0;
 
       const char* db = NULL;
@@ -827,85 +887,91 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
 
       SName sn = {0};
       char  dbname[TSDB_DB_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
-    tNameFromString(&sn, db, T_NAME_ACCT|T_NAME_DB);
+      tNameFromString(&sn, db, T_NAME_ACCT | T_NAME_DB);
 
       tNameGetDbName(&sn, varDataVal(dbname));
       varDataSetLen(dbname, strlen(varDataVal(dbname)));
 
-    char n[TSDB_TABLE_NAME_LEN] = {0};
+      SSDataBlock* p = buildSysTableMetaBlock();
+      blockDataEnsureCapacity(p, pInfo->capacity);
+
+      char n[TSDB_TABLE_NAME_LEN + VARSTR_HEADER_SIZE] = {0};
       while (metaTbCursorNext(pInfo->pCur) == 0) {
         STR_TO_VARSTR(n, pInfo->pCur->mr.me.name);
-      colDataAppend(pTableNameCol, numOfRows, n, false);
 
-      int32_t tableType = pInfo->pCur->mr.me.type;
+        // table name
+        SColumnInfoData* pColInfoData = taosArrayGet(p->pDataBlock, 0);
+        colDataAppend(pColInfoData, numOfRows, n, false);
 
         // database name
-      SColumnInfoData* pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 0);
+        pColInfoData = taosArrayGet(p->pDataBlock, 1);
         colDataAppend(pColInfoData, numOfRows, dbname, false);
 
         // vgId
-      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 6);
-      colDataAppend(pColInfoData, numOfRows, (char*) &vgId, false);
+        pColInfoData = taosArrayGet(p->pDataBlock, 6);
+        colDataAppend(pColInfoData, numOfRows, (char*)&vgId, false);
 
         // table comment
         // todo: set the correct comment
-      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 8);
+        pColInfoData = taosArrayGet(p->pDataBlock, 8);
         colDataAppendNULL(pColInfoData, numOfRows);
 
         char    str[256] = {0};
+        int32_t tableType = pInfo->pCur->mr.me.type;
         if (tableType == TSDB_CHILD_TABLE) {
+          // create time
+          int64_t ts = pInfo->pCur->mr.me.ctbEntry.ctime;
+          pColInfoData = taosArrayGet(p->pDataBlock, 2);
+          colDataAppend(pColInfoData, numOfRows, (char*)&ts, false);
+
           SMetaReader mr = {0};
           metaReaderInit(&mr, pInfo->readHandle.meta, 0);
           metaGetTableEntryByUid(&mr, pInfo->pCur->mr.me.ctbEntry.suid);
 
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 3);
-        colDataAppend(pColInfoData, numOfRows,  (char*) &mr.me.stbEntry.schema.nCols, false);
-
-        // create time
-        int64_t ts = pInfo->pCur->mr.me.ctbEntry.ctime;
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 2);
-        colDataAppend(pColInfoData, numOfRows, (char*) &ts, false);
+          // number of columns
+          pColInfoData = taosArrayGet(p->pDataBlock, 3);
+          colDataAppend(pColInfoData, numOfRows, (char*)&mr.me.stbEntry.schema.nCols, false);
 
           // super table name
           STR_TO_VARSTR(str, mr.me.name);
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 4);
+          pColInfoData = taosArrayGet(p->pDataBlock, 4);
           colDataAppend(pColInfoData, numOfRows, str, false);
           metaReaderClear(&mr);
 
           // uid
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 5);
-        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.uid, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 5);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.uid, false);
 
           // ttl
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 7);
-        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ctbEntry.ttlDays, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 7);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.ctbEntry.ttlDays, false);
 
           STR_TO_VARSTR(str, "CHILD_TABLE");
         } else if (tableType == TSDB_NORMAL_TABLE) {
           // create time
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 2);
-        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ntbEntry.ctime, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 2);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.ntbEntry.ctime, false);
 
           // number of columns
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 3);
-        colDataAppend(pColInfoData, numOfRows,  (char*) &pInfo->pCur->mr.me.ntbEntry.schema.nCols, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 3);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.ntbEntry.schema.nCols, false);
 
           // super table name
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 4);
+          pColInfoData = taosArrayGet(p->pDataBlock, 4);
           colDataAppendNULL(pColInfoData, numOfRows);
 
           // uid
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 5);
-        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.uid, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 5);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.uid, false);
 
           // ttl
-        pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 7);
-        colDataAppend(pColInfoData, numOfRows, (char*) &pInfo->pCur->mr.me.ntbEntry.ttlDays, false);
+          pColInfoData = taosArrayGet(p->pDataBlock, 7);
+          colDataAppend(pColInfoData, numOfRows, (char*)&pInfo->pCur->mr.me.ntbEntry.ttlDays, false);
 
           STR_TO_VARSTR(str, "NORMAL_TABLE");
         }
 
-      pColInfoData = taosArrayGet(pInfo->pRes->pDataBlock, 9);
+        pColInfoData = taosArrayGet(p->pDataBlock, 9);
         colDataAppend(pColInfoData, numOfRows, str, false);
 
         if (++numOfRows >= pInfo->capacity) {
@@ -913,12 +979,15 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
         }
       }
 
-    pInfo->loadInfo.totalRows += numOfRows;
+      p->info.rows = numOfRows;
       pInfo->pRes->info.rows = numOfRows;
 
-    //    pInfo->elapsedTime;
-    //    pInfo->totalBytes;
+      relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock);
+      doFilterResult(pInfo);
+
+      pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
       return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
+    }
   } else {  // load the meta from mnode of the given epset
     if (pOperator->status == OP_EXEC_DONE) {
       return NULL;
@@ -988,6 +1057,67 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator, bool* newgroup) {
   }
 }
 
+int32_t buildSysDbTableInfo(const SSysTableScanInfo* pInfo) {
+  SSDataBlock* p = buildSysTableMetaBlock();
+  blockDataEnsureCapacity(p, pInfo->capacity);
+
+  size_t size = 0;
+  const SSysTableMeta* pSysDbTableMeta = NULL;
+
+  getInfosDbMeta(&pSysDbTableMeta, &size);
+  p->info.rows = buildDbTableInfoBlock(p, pSysDbTableMeta, size, TSDB_INFORMATION_SCHEMA_DB);
+
+  getPerfDbMeta(&pSysDbTableMeta, &size);
+  p->info.rows = buildDbTableInfoBlock(p, pSysDbTableMeta, size, TSDB_PERFORMANCE_SCHEMA_DB);
+
+  relocateColumnData(pInfo->pRes,  pInfo->scanCols, p->pDataBlock);
+//  blockDataDestroy(p);  todo handle memory leak
+
+  pInfo->pRes->info.rows = p->info.rows;
+  return p->info.rows;
+}
+
+int32_t buildDbTableInfoBlock(const SSDataBlock* p, const SSysTableMeta* pSysDbTableMeta, size_t size, const char* dbName) {
+  char n[TSDB_TABLE_FNAME_LEN + VARSTR_HEADER_SIZE] = {0};
+  int32_t numOfRows = p->info.rows;
+
+  for(int32_t i = 0; i < size; ++i) {
+    const SSysTableMeta* pm = &pSysDbTableMeta[i];
+
+    SColumnInfoData* pColInfoData = taosArrayGet(p->pDataBlock, 0);
+
+    STR_TO_VARSTR(n, pm->name);
+    colDataAppend(pColInfoData, numOfRows, n, false);
+
+    // database name
+    STR_TO_VARSTR(n, dbName);
+    pColInfoData = taosArrayGet(p->pDataBlock, 1);
+    colDataAppend(pColInfoData, numOfRows, n, false);
+
+    // create time
+    pColInfoData = taosArrayGet(p->pDataBlock, 2);
+    colDataAppendNULL(pColInfoData, numOfRows);
+
+    // number of columns
+    pColInfoData = taosArrayGet(p->pDataBlock, 3);
+    colDataAppend(pColInfoData, numOfRows, (char*)&pm->colNum, false);
+
+    for(int32_t j = 4; j <= 8; ++j) {
+      pColInfoData = taosArrayGet(p->pDataBlock, j);
+      colDataAppendNULL(pColInfoData, numOfRows);
+    }
+
+    STR_TO_VARSTR(n, "SYSTEM_TABLE");
+
+    pColInfoData = taosArrayGet(p->pDataBlock, 9);
+    colDataAppend(pColInfoData, numOfRows, n, false);
+
+    numOfRows += 1;
+  }
+
+  return numOfRows;
+}
+
 SOperatorInfo* createSysTableScanOperatorInfo(void* readHandle, SSDataBlock* pResBlock, const SName* pName,
                                               SNode* pCondition, SEpSet epset, SArray* colList,
                                               SExecTaskInfo* pTaskInfo, bool showRewrite, int32_t accountId) {

source/libs/function/inc/builtinsimpl.h

@@ -68,6 +68,11 @@ bool getTopBotFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv);
 int32_t topFunction(SqlFunctionCtx *pCtx);
 int32_t topBotFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
 
+bool getSpreadFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
+bool spreadFunctionSetup(SqlFunctionCtx *pCtx, SResultRowEntryInfo* pResultInfo);
+int32_t spreadFunction(SqlFunctionCtx* pCtx);
+int32_t spreadFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+
 #ifdef __cplusplus
 }
 #endif

source/libs/function/src/builtins.c

@@ -212,7 +212,16 @@ static int32_t translateBottom(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 }
 
 static int32_t translateSpread(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
-  // todo
+  if (1 != LIST_LENGTH(pFunc->pParameterList)) {
+    return invaildFuncParaNumErrMsg(pErrBuf, len, pFunc->functionName);
+  }
+
+  uint8_t paraType = ((SExprNode*)nodesListGetNode(pFunc->pParameterList, 0))->resType.type;
+  if (!IS_NUMERIC_TYPE(paraType) && TSDB_DATA_TYPE_TIMESTAMP != paraType) {
+    return invaildFuncParaTypeErrMsg(pErrBuf, len, pFunc->functionName);
+  }
+
+  pFunc->node.resType = (SDataType) { .bytes = tDataTypes[TSDB_DATA_TYPE_DOUBLE].bytes, .type = TSDB_DATA_TYPE_DOUBLE };
   return TSDB_CODE_SUCCESS;
 }
 
@@ -431,7 +440,8 @@ static int32_t translateToJson(SFunctionNode* pFunc, char* pErrBuf, int32_t len)
 }
 
 const SBuiltinFuncDefinition funcMgtBuiltins[] = {
-    {.name = "count",
+  {
+    .name = "count",
     .type = FUNCTION_TYPE_COUNT,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SPECIAL_DATA_REQUIRED,
     .translateFunc = translateCount,
@@ -439,8 +449,10 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getCountFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = countFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "sum",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "sum",
     .type = FUNCTION_TYPE_SUM,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SPECIAL_DATA_REQUIRED,
     .translateFunc = translateSum,
@@ -448,8 +460,10 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getSumFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = sumFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "min",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "min",
     .type = FUNCTION_TYPE_MIN,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SPECIAL_DATA_REQUIRED,
     .translateFunc = translateInOutNum,
@@ -457,8 +471,10 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getMinmaxFuncEnv,
     .initFunc     = minFunctionSetup,
     .processFunc  = minFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "max",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "max",
     .type = FUNCTION_TYPE_MAX,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_SPECIAL_DATA_REQUIRED,
     .translateFunc = translateInOutNum,
@@ -466,39 +482,48 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getMinmaxFuncEnv,
     .initFunc     = maxFunctionSetup,
     .processFunc  = maxFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "stddev",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "stddev",
     .type = FUNCTION_TYPE_STDDEV,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = getStddevFuncEnv,
     .initFunc     = stddevFunctionSetup,
     .processFunc  = stddevFunction,
-     .finalizeFunc = stddevFinalize},
-    {.name = "avg",
+    .finalizeFunc = stddevFinalize
+  },
+  {
+    .name = "avg",
     .type = FUNCTION_TYPE_AVG,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = getAvgFuncEnv,
     .initFunc     = avgFunctionSetup,
     .processFunc  = avgFunction,
-     .finalizeFunc = avgFinalize},
-    {.name = "percentile",
+    .finalizeFunc = avgFinalize
+  },
+  {
+    .name = "percentile",
     .type = FUNCTION_TYPE_PERCENTILE,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translatePercentile,
     .getEnvFunc   = getPercentileFuncEnv,
     .initFunc     = percentileFunctionSetup,
     .processFunc  = percentileFunction,
-     .finalizeFunc = percentileFinalize},
-    {.name = "apercentile",
+    .finalizeFunc = percentileFinalize
+  },
+  {
+    .name = "apercentile",
     .type = FUNCTION_TYPE_APERCENTILE,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translateApercentile,
     .getEnvFunc   = getMinmaxFuncEnv,
     .initFunc     = maxFunctionSetup,
     .processFunc  = maxFunction,
-     .finalizeFunc = functionFinalize},
+    .finalizeFunc = functionFinalize
+  },
   {
     .name = "top",
     .type = FUNCTION_TYPE_TOP,
@@ -509,357 +534,447 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .processFunc  = topFunction,
     .finalizeFunc = topBotFinalize,
   },
-    {.name = "bottom",
+  {
+    .name = "bottom",
     .type = FUNCTION_TYPE_BOTTOM,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translateBottom,
     .getEnvFunc   = getMinmaxFuncEnv,
     .initFunc     = maxFunctionSetup,
     .processFunc  = maxFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "spread",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "spread",
     .type = FUNCTION_TYPE_SPREAD,
     .classification = FUNC_MGT_AGG_FUNC,
     .translateFunc = translateSpread,
-     .getEnvFunc = getMinmaxFuncEnv,
-     .initFunc = maxFunctionSetup,
-     .processFunc = maxFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "last_row",
+    .dataRequiredFunc = statisDataRequired,
+    .getEnvFunc   = getSpreadFuncEnv,
+    .initFunc     = spreadFunctionSetup,
+    .processFunc  = spreadFunction,
+    .finalizeFunc = spreadFinalize
+  },
+  {
+    .name = "last_row",
     .type = FUNCTION_TYPE_LAST_ROW,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC,
     .translateFunc = translateLastRow,
     .getEnvFunc   = getMinmaxFuncEnv,
     .initFunc     = maxFunctionSetup,
     .processFunc  = maxFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "first",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "first",
     .type = FUNCTION_TYPE_FIRST,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC,
     .translateFunc = translateFirstLast,
     .getEnvFunc   = getFirstLastFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = firstFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "last",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "last",
     .type = FUNCTION_TYPE_LAST,
     .classification = FUNC_MGT_AGG_FUNC | FUNC_MGT_MULTI_RES_FUNC,
     .translateFunc = translateFirstLast,
     .getEnvFunc   = getFirstLastFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = lastFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "diff",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "diff",
     .type = FUNCTION_TYPE_DIFF,
     .classification = FUNC_MGT_NONSTANDARD_SQL_FUNC,
     .translateFunc = translateInOutNum,
     .getEnvFunc   = getDiffFuncEnv,
     .initFunc     = diffFunctionSetup,
     .processFunc  = diffFunction,
-     .finalizeFunc = functionFinalize},
-    {.name = "abs",
+    .finalizeFunc = functionFinalize
+  },
+  {
+    .name = "abs",
     .type = FUNCTION_TYPE_ABS,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInOutNum,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = absFunction,
-     .finalizeFunc = NULL},
-    {.name = "log",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "log",
     .type = FUNCTION_TYPE_LOG,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateIn2NumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = logFunction,
-     .finalizeFunc = NULL},
-    {.name = "pow",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "pow",
     .type = FUNCTION_TYPE_POW,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateIn2NumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = powFunction,
-     .finalizeFunc = NULL},
-    {.name = "sqrt",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "sqrt",
     .type = FUNCTION_TYPE_SQRT,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = sqrtFunction,
-     .finalizeFunc = NULL},
-    {.name = "ceil",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "ceil",
     .type = FUNCTION_TYPE_CEIL,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInOutNum,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = ceilFunction,
-     .finalizeFunc = NULL},
-    {.name = "floor",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "floor",
     .type = FUNCTION_TYPE_FLOOR,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInOutNum,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = floorFunction,
-     .finalizeFunc = NULL},
-    {.name = "round",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "round",
     .type = FUNCTION_TYPE_ROUND,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInOutNum,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = roundFunction,
-     .finalizeFunc = NULL},
-    {.name = "sin",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "sin",
     .type = FUNCTION_TYPE_SIN,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = sinFunction,
-     .finalizeFunc = NULL},
-    {.name = "cos",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "cos",
     .type = FUNCTION_TYPE_COS,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = cosFunction,
-     .finalizeFunc = NULL},
-    {.name = "tan",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "tan",
     .type = FUNCTION_TYPE_TAN,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = tanFunction,
-     .finalizeFunc = NULL},
-    {.name = "asin",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "asin",
     .type = FUNCTION_TYPE_ASIN,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = asinFunction,
-     .finalizeFunc = NULL},
-    {.name = "acos",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "acos",
     .type = FUNCTION_TYPE_ACOS,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = acosFunction,
-     .finalizeFunc = NULL},
-    {.name = "atan",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "atan",
     .type = FUNCTION_TYPE_ATAN,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateInNumOutDou,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = atanFunction,
-     .finalizeFunc = NULL},
-    {.name = "length",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "length",
     .type = FUNCTION_TYPE_LENGTH,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateLength,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = lengthFunction,
-     .finalizeFunc = NULL},
-    {.name = "char_length",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "char_length",
     .type = FUNCTION_TYPE_CHAR_LENGTH,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateLength,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = charLengthFunction,
-     .finalizeFunc = NULL},
-    {.name = "concat",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "concat",
     .type = FUNCTION_TYPE_CONCAT,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateConcat,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = concatFunction,
-     .finalizeFunc = NULL},
-    {.name = "concat_ws",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "concat_ws",
     .type = FUNCTION_TYPE_CONCAT_WS,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateConcatWs,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = concatWsFunction,
-     .finalizeFunc = NULL},
-    {.name = "lower",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "lower",
     .type = FUNCTION_TYPE_LOWER,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateInOutStr,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = lowerFunction,
-     .finalizeFunc = NULL},
-    {.name = "upper",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "upper",
     .type = FUNCTION_TYPE_UPPER,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateInOutStr,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = upperFunction,
-     .finalizeFunc = NULL},
-    {.name = "ltrim",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "ltrim",
     .type = FUNCTION_TYPE_LTRIM,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateInOutStr,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = ltrimFunction,
-     .finalizeFunc = NULL},
-    {.name = "rtrim",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "rtrim",
     .type = FUNCTION_TYPE_RTRIM,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateInOutStr,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = rtrimFunction,
-     .finalizeFunc = NULL},
-    {.name = "substr",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "substr",
     .type = FUNCTION_TYPE_SUBSTR,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_STRING_FUNC,
     .translateFunc = translateSubstr,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = substrFunction,
-     .finalizeFunc = NULL},
-    {.name = "cast",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "cast",
     .type = FUNCTION_TYPE_CAST,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateCast,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = castFunction,
-     .finalizeFunc = NULL},
-    {.name = "to_iso8601",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "to_iso8601",
     .type = FUNCTION_TYPE_TO_ISO8601,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateToIso8601,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = toISO8601Function,
-     .finalizeFunc = NULL},
-    {.name = "to_unixtimestamp",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "to_unixtimestamp",
     .type = FUNCTION_TYPE_TO_UNIXTIMESTAMP,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateToUnixtimestamp,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = toUnixtimestampFunction,
-     .finalizeFunc = NULL},
-    {.name = "timetruncate",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "timetruncate",
     .type = FUNCTION_TYPE_TIMETRUNCATE,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateTimeTruncate,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = timeTruncateFunction,
-     .finalizeFunc = NULL},
-    {.name = "timediff",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "timediff",
     .type = FUNCTION_TYPE_TIMEDIFF,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateTimeDiff,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = timeDiffFunction,
-     .finalizeFunc = NULL},
-    {.name = "now",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "now",
     .type = FUNCTION_TYPE_NOW,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_DATETIME_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = nowFunction,
-     .finalizeFunc = NULL},
-    {.name = "today",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "today",
     .type = FUNCTION_TYPE_TODAY,
     .classification = FUNC_MGT_SCALAR_FUNC | FUNC_MGT_DATETIME_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = todayFunction,
-     .finalizeFunc = NULL},
-    {.name = "timezone",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "timezone",
     .type = FUNCTION_TYPE_TIMEZONE,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateTimezone,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = timezoneFunction,
-     .finalizeFunc = NULL},
-    {.name = "_rowts",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_rowts",
     .type = FUNCTION_TYPE_ROWTS,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = NULL,
-     .finalizeFunc = NULL},
-    {.name = "tbname",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "tbname",
     .type = FUNCTION_TYPE_TBNAME,
-     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_SCAN_PC_FUNC,
+    .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC,
     .translateFunc = translateTbnameColumn,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = NULL,
-     .finalizeFunc = NULL},
-    {.name = "_qstartts",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_qstartts",
     .type = FUNCTION_TYPE_QSTARTTS,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = qStartTsFunction,
-     .finalizeFunc = NULL},
-    {.name = "_qendts",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_qendts",
     .type = FUNCTION_TYPE_QENDTS,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = qEndTsFunction,
-     .finalizeFunc = NULL},
-    {.name = "_wstartts",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_wstartts",
     .type = FUNCTION_TYPE_WSTARTTS,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = winStartTsFunction,
-     .finalizeFunc = NULL},
-    {.name = "_wendts",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_wendts",
     .type = FUNCTION_TYPE_WENDTS,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateTimePseudoColumn,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = winEndTsFunction,
-     .finalizeFunc = NULL},
-    {.name = "_wduration",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "_wduration",
     .type = FUNCTION_TYPE_WDURATION,
     .classification = FUNC_MGT_PSEUDO_COLUMN_FUNC | FUNC_MGT_WINDOW_PC_FUNC,
     .translateFunc = translateWduration,
     .getEnvFunc   = getTimePseudoFuncEnv,
     .initFunc     = NULL,
     .sprocessFunc = winDurFunction,
-     .finalizeFunc = NULL},
-    {.name = "to_json",
+    .finalizeFunc = NULL
+  },
+  {
+    .name = "to_json",
     .type = FUNCTION_TYPE_TO_JSON,
     .classification = FUNC_MGT_SCALAR_FUNC,
     .translateFunc = translateToJson,
     .getEnvFunc   = NULL,
     .initFunc     = NULL,
     .sprocessFunc = toJsonFunction,
-     .finalizeFunc = NULL}};
+    .finalizeFunc = NULL
+  }
+};
 
 const int32_t funcMgtBuiltinsNum = (sizeof(funcMgtBuiltins) / sizeof(SBuiltinFuncDefinition));

source/libs/parser/src/parTranslater.c

@@ -22,6 +22,7 @@
 #include "scalar.h"
 #include "tglobal.h"
 #include "ttime.h"
+#include "systable.h"
 
 #define generateDealNodeErrMsg(pCxt, code, ...) \
   (pCxt->errCode = generateSyntaxErrMsg(&pCxt->msgBuf, code, ##__VA_ARGS__) ? DEAL_RES_ERROR : DEAL_RES_ERROR)
@@ -780,17 +781,17 @@ static int32_t setSysTableVgroupList(STranslateContext* pCxt, SName* pName, SRea
   SArray* vgroupList = NULL;
   if ('\0' != pRealTable->qualDbName[0]) {
     // todo release after mnode can be processed
-    // if (0 != strcmp(pRealTable->qualDbName, TSDB_INFORMATION_SCHEMA_DB)) {
+    if (0 != strcmp(pRealTable->qualDbName, TSDB_INFORMATION_SCHEMA_DB)) {
       code = getDBVgInfo(pCxt, pRealTable->qualDbName, &vgroupList);
-    // }
+    }
   } else {
     code = getDBVgInfoImpl(pCxt, pName, &vgroupList);
   }
 
   // todo release after mnode can be processed
-  // if (TSDB_CODE_SUCCESS == code) {
-  //   code = addMnodeToVgroupList(&pCxt->pParseCxt->mgmtEpSet, &vgroupList);
-  // }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = addMnodeToVgroupList(&pCxt->pParseCxt->mgmtEpSet, &vgroupList);
+  }
 
   if (TSDB_CODE_SUCCESS == code) {
     code = toVgroupsInfo(vgroupList, &pRealTable->pVgroupList);

source/libs/planner/src/planPhysiCreater.c

@@ -18,6 +18,7 @@
 #include "catalog.h"
 #include "functionMgt.h"
 #include "tglobal.h"
+#include "systable.h"
 
 typedef struct SSlotIdInfo {
   int16_t slotId;

source/libs/qcom/src/querymsg.c

@@ -17,6 +17,7 @@
 #include "queryInt.h"
 #include "query.h"
 #include "trpc.h"
+#include "systable.h"
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wformat-truncation"

source/libs/qworker/src/qworkerMsg.c

@@ -34,6 +34,7 @@ void qwBuildFetchRsp(void *msg, SOutputData *input, int32_t len, bool qComplete)
   rsp->compressed = input->compressed;
   rsp->compLen = htonl(len);
   rsp->numOfRows = htonl(input->numOfRows);
+  rsp->numOfCols = htonl(input->numOfCols);
 }
 
 void qwFreeFetchRsp(void *msg) {

source/libs/scalar/src/sclfunc.c

@@ -15,7 +15,15 @@ typedef int16_t (*_len_fn)(char *, int32_t);
 
 /** Math functions **/
 static double tlog(double v, double base) {
-  return log(v) / log(base);
+  double a = log(v);
+  double b = log(base);
+  if (isnan(a) || isinf(a)) {
+    return a;
+  } else if (isnan(b) || isinf(b)) {
+    return b;
+  } else {
+    return a / b;
+  }
 }
 
 int32_t absFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
@@ -160,22 +168,64 @@ static int32_t doScalarFunctionUnique2(SScalarParam *pInput, int32_t inputNum, S
   }
 
   double *out = (double *)pOutputData->pData;
+  double result;
 
-  for (int32_t i = 0; i < pInput->numOfRows; ++i) {
+  int32_t numOfRows = TMAX(pInput[0].numOfRows, pInput[1].numOfRows);
+  if (pInput[0].numOfRows == pInput[1].numOfRows) {
+    for (int32_t i = 0; i < numOfRows; ++i) {
       if (colDataIsNull_s(pInputData[0], i) ||
-        colDataIsNull_s(pInputData[1], 0)) {
+          colDataIsNull_s(pInputData[1], i)) {
         colDataAppendNULL(pOutputData, i);
         continue;
       }
-    double result = valFn(getValueFn[0](pInputData[0]->pData, i), getValueFn[1](pInputData[1]->pData, 0));
+      result = valFn(getValueFn[0](pInputData[0]->pData, i), getValueFn[1](pInputData[1]->pData, i));
       if (isinf(result) || isnan(result)) {
         colDataAppendNULL(pOutputData, i);
       } else {
         out[i] = result;
       }
     }
+  } else if (pInput[0].numOfRows == 1) { //left operand is constant
+    if (colDataIsNull_s(pInputData[0], 0)) {
+      colDataAppendNNULL(pOutputData, 0, pInput[1].numOfRows);
+    } else {
+      for (int32_t i = 0; i < numOfRows; ++i) {
+        if (colDataIsNull_s(pInputData[1], i)) {
+          colDataAppendNULL(pOutputData, i);
+          continue;
+        }
+
+        result = valFn(getValueFn[0](pInputData[0]->pData, 0), getValueFn[1](pInputData[1]->pData, i));
+        if (isinf(result) || isnan(result)) {
+          colDataAppendNULL(pOutputData, i);
+          continue;
+        }
 
-  pOutput->numOfRows = pInput->numOfRows;
+        out[i] = result;
+      }
+    }
+  } else if (pInput[1].numOfRows == 1) {
+    if (colDataIsNull_s(pInputData[1], 0)) {
+      colDataAppendNNULL(pOutputData, 0, pInput[0].numOfRows);
+    } else {
+      for (int32_t i = 0; i < numOfRows; ++i) {
+        if (colDataIsNull_s(pInputData[0], i)) {
+          colDataAppendNULL(pOutputData, i);
+          continue;
+        }
+
+        result = valFn(getValueFn[0](pInputData[0]->pData, i), getValueFn[1](pInputData[1]->pData, 0));
+        if (isinf(result) || isnan(result)) {
+          colDataAppendNULL(pOutputData, i);
+          continue;
+        }
+
+        out[i] = result;
+      }
+    }
+  }
+
+  pOutput->numOfRows = numOfRows;
   return TSDB_CODE_SUCCESS;
 }
 

source/libs/stream/src/tstream.c

@@ -158,8 +158,6 @@ int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, in
     //
   } else if (pTask->sinkType == TASK_SINK__FETCH) {
     //
-  } else if (pTask->sinkType == TASK_SINK__SHOW) {
-    blockDebugShowData(pRes);
   } else {
     ASSERT(pTask->sinkType == TASK_SINK__NONE);
   }
@@ -280,8 +278,6 @@ int32_t tEncodeSStreamTask(SCoder* pEncoder, const SStreamTask* pTask) {
     if (tEncodeI64(pEncoder, pTask->smaSink.smaId) < 0) return -1;
   } else if (pTask->sinkType == TASK_SINK__FETCH) {
     if (tEncodeI8(pEncoder, pTask->fetchSink.reserved) < 0) return -1;
-  } else if (pTask->sinkType == TASK_SINK__SHOW) {
-    if (tEncodeI8(pEncoder, pTask->showSink.reserved) < 0) return -1;
   } else {
     ASSERT(pTask->sinkType == TASK_SINK__NONE);
   }
@@ -326,8 +322,6 @@ int32_t tDecodeSStreamTask(SCoder* pDecoder, SStreamTask* pTask) {
     if (tDecodeI64(pDecoder, &pTask->smaSink.smaId) < 0) return -1;
   } else if (pTask->sinkType == TASK_SINK__FETCH) {
     if (tDecodeI8(pDecoder, &pTask->fetchSink.reserved) < 0) return -1;
-  } else if (pTask->sinkType == TASK_SINK__SHOW) {
-    if (tDecodeI8(pDecoder, &pTask->showSink.reserved) < 0) return -1;
   } else {
     ASSERT(pTask->sinkType == TASK_SINK__NONE);
   }

source/libs/stream/src/tstreamUpdate.c

@@ -54,15 +54,28 @@ static int64_t adjustInterval(int64_t interval, int32_t precision) {
   if (precision != TSDB_TIME_PRECISION_MILLI) {
     val = convertTimePrecision(interval, precision, TSDB_TIME_PRECISION_MILLI);
   }
-  if (val < MIN_INTERVAL) {
-    val = MIN_INTERVAL;
-  } else if (val > MAX_INTERVAL) {
+
+  if (val <= 0 || val > MAX_INTERVAL) {
     val = MAX_INTERVAL;
+  } else if (val < MIN_INTERVAL) {
+    val = MIN_INTERVAL;
   }
+
+  if (precision != TSDB_TIME_PRECISION_MILLI) {
     val = convertTimePrecision(val, TSDB_TIME_PRECISION_MILLI, precision);
+  }
   return val;
 }
 
+static int64_t adjustWatermark(int64_t interval, int32_t watermark) {
+  if (watermark <= 0 || watermark > MAX_NUM_SCALABLE_BF * interval) {
+    watermark = MAX_NUM_SCALABLE_BF * interval;
+  } else if (watermark < MIN_NUM_SCALABLE_BF * interval) {
+    watermark = MIN_NUM_SCALABLE_BF * interval;
+  }
+  return watermark;
+}
+
 SUpdateInfo *updateInfoInitP(SInterval* pInterval, int64_t watermark) {
   return updateInfoInit(pInterval->interval, pInterval->precision, watermark);
 }
@@ -76,14 +89,9 @@ SUpdateInfo *updateInfoInit(int64_t interval, int32_t precision, int64_t waterma
   pInfo->pTsSBFs = NULL;
   pInfo->minTS = -1;
   pInfo->interval = adjustInterval(interval, precision);
-  pInfo->watermark = watermark;
+  pInfo->watermark = adjustWatermark(pInfo->interval, watermark);
 
-  uint64_t bfSize = (uint64_t)(watermark / pInfo->interval);
-  if (bfSize < MIN_NUM_SCALABLE_BF) {
-    bfSize = MIN_NUM_SCALABLE_BF;
-  } else if (bfSize > MAX_NUM_SCALABLE_BF) {
-    bfSize = MAX_NUM_SCALABLE_BF;
-  }
+  uint64_t bfSize = (uint64_t)(pInfo->watermark / pInfo->interval);
 
   pInfo->pTsSBFs = taosArrayInit(bfSize, sizeof(SScalableBf));
   if (pInfo->pTsSBFs == NULL) {

source/libs/stream/test/tstreamUpdateTest.cpp

@@ -90,11 +90,21 @@ TEST(TD_STREAM_UPDATE_TEST, update) {
     }
   }
 
+  SUpdateInfo *pSU4 = updateInfoInit(-1, TSDB_TIME_PRECISION_MILLI, -1);
+  GTEST_ASSERT_EQ(pSU4->watermark, 120 * pSU4->interval);
+  GTEST_ASSERT_EQ(pSU4->interval, MILLISECOND_PER_MINUTE);
+
+  SUpdateInfo *pSU5 = updateInfoInit(0, TSDB_TIME_PRECISION_MILLI, 0);
+  GTEST_ASSERT_EQ(pSU5->watermark, 120 * pSU4->interval);
+  GTEST_ASSERT_EQ(pSU5->interval, MILLISECOND_PER_MINUTE);
+
 
   updateInfoDestroy(pSU);
   updateInfoDestroy(pSU1);
   updateInfoDestroy(pSU2);
   updateInfoDestroy(pSU3);
+  updateInfoDestroy(pSU4);
+  updateInfoDestroy(pSU5);
 }
 
 int main(int argc, char* argv[]) {

source/libs/transport/src/transSrv.c

@@ -810,16 +810,17 @@ void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads,
     SWorkThrdObj* thrd = (SWorkThrdObj*)taosMemoryCalloc(1, sizeof(SWorkThrdObj));
     thrd->quit = false;
     srv->pThreadObj[i] = thrd;
+    thrd->pTransInst = shandle;
 
     srv->pipe[i] = (uv_pipe_t*)taosMemoryCalloc(2, sizeof(uv_pipe_t));
-    int fds[2];
-    if (uv_socketpair(AF_UNIX, SOCK_STREAM, fds, UV_NONBLOCK_PIPE, UV_NONBLOCK_PIPE) != 0) {
+
+    uv_os_sock_t fds[2];
+    if (uv_socketpair(SOCK_STREAM, 0, fds, UV_NONBLOCK_PIPE, UV_NONBLOCK_PIPE) != 0) {
       goto End;
     }
     uv_pipe_init(srv->loop, &(srv->pipe[i][0]), 1);
     uv_pipe_open(&(srv->pipe[i][0]), fds[1]);  // init write
 
-    thrd->pTransInst = shandle;
     thrd->fd = fds[0];
     thrd->pipe = &(srv->pipe[i][1]);  // init read
 

source/os/src/osDir.c

@@ -40,11 +40,11 @@ int wordexp(char *words, wordexp_t *pwordexp, int flags) {
   memset(pwordexp->wordPos, 0, 1025);
   if (_fullpath(pwordexp->wordPos, words, 1024) == NULL) {
     pwordexp->we_wordv[0] = words;
-    printf("failed to parse relative path:%s to abs path", words);
+    printf("failed to parse relative path:%s to abs path\n", words);
     return -1;
   }
 
-  printf("parse relative path:%s to abs path:%s", words, pwordexp->wordPos);
+  printf("parse relative path:%s to abs path:%s\n", words, pwordexp->wordPos);
   return 0;
 }
 

source/os/src/osFile.c

@@ -22,20 +22,6 @@
 #define W_OK 2
 #define R_OK 4
 
-#if defined(_MSDOS)
-#define open _open
-#endif
-
-#if defined(_WIN32)
-extern int openA(const char *, int, ...); /* MsvcLibX ANSI version of open */
-extern int openU(const char *, int, ...); /* MsvcLibX UTF-8 version of open */
-#if defined(_UTF8_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
-#define open openU
-#else /* _ANSI_SOURCE */
-#define open openA
-#endif /* defined(_UTF8_SOURCE) */
-#endif /* defined(_WIN32) */
-
 #define _SEND_FILE_STEP_ 1000
 
 #else
@@ -228,9 +214,6 @@ int32_t taosDevInoFile(const char *path, int64_t *stDev, int64_t *stIno) {
 void autoDelFileListAdd(const char *path) { return; }
 
 TdFilePtr taosOpenFile(const char *path, int32_t tdFileOptions) {
-#ifdef WINDOWS
-  return NULL;
-#else
   int   fd = -1;
   FILE *fp = NULL;
   if (tdFileOptions & TD_FILE_STREAM) {
@@ -263,7 +246,11 @@ TdFilePtr taosOpenFile(const char *path, int32_t tdFileOptions) {
     access |= (tdFileOptions & TD_FILE_APPEND) ? O_APPEND : 0;
     access |= (tdFileOptions & TD_FILE_TEXT) ? O_TEXT : 0;
     access |= (tdFileOptions & TD_FILE_EXCL) ? O_EXCL : 0;
+  #ifdef WINDOWS
+    fd = _open(path, access, _S_IREAD|_S_IWRITE);
+  #else
     fd = open(path, access, S_IRWXU | S_IRWXG | S_IRWXO);
+  #endif
     if (fd == -1) {
       return NULL;
     }
@@ -286,7 +273,6 @@ TdFilePtr taosOpenFile(const char *path, int32_t tdFileOptions) {
   pFile->fp = fp;
   pFile->refId = 0;
   return pFile;
-#endif
 }
 
 int64_t taosCloseFile(TdFilePtr *ppFile) {

source/os/src/osSysinfo.c

@@ -866,6 +866,16 @@ void taosSetCoreDump(bool enable) {
 
 SysNameInfo taosGetSysNameInfo() {
 #ifdef WINDOWS
+  SysNameInfo info = {0};
+  DWORD dwVersion = GetVersion();
+
+  tstrncpy(info.sysname, getenv("OS"), sizeof(info.sysname));
+  tstrncpy(info.nodename, getenv("COMPUTERNAME"), sizeof(info.nodename));
+  sprintf_s(info.release, sizeof(info.release), "%d", dwVersion & 0x0F);
+  sprintf_s(info.version, sizeof(info.release), "%d", (dwVersion >> 8) & 0x0F);
+  tstrncpy(info.machine, getenv("PROCESSOR_ARCHITECTURE"), sizeof(info.machine));
+
+  return info;
 #elif defined(_TD_DARWIN_64)
   SysNameInfo info = {0};
 

source/util/src/tconfig.c

@@ -687,13 +687,13 @@ int32_t cfgLoadFromEnvFile(SConfig *pConfig, const char *envFile) {
   const char *filepath = ".env";
   if (envFile != NULL && strlen(envFile)>0) {
     if (!taosCheckExistFile(envFile)) {
-      uError("fial to load env file: %s", envFile);
+      uError("failed to load env file: %s", envFile);
       return -1;
     }
     filepath = envFile;
   }else {
     if (!taosCheckExistFile(filepath)) {
-      uInfo("fial to load env file: %s", filepath);
+      uInfo("failed to load env file: %s", filepath);
       return 0;
     }
   }
@@ -826,7 +826,7 @@ int32_t cfgLoadFromApollUrl(SConfig *pConfig, const char *url) {
   if (strncmp(url, "jsonFile", 8) == 0) {
     char *filepath = p;
     if (!taosCheckExistFile(filepath)) {
-      uError("fial to load json file: %s", filepath);
+      uError("failed to load json file: %s", filepath);
       return -1;
     }
 
@@ -957,13 +957,13 @@ int32_t cfgGetApollUrl(const char **envCmd, const char *envFile, char* apolloUrl
   const char *filepath = ".env";
   if (envFile != NULL && strlen(envFile)>0) {
     if (!taosCheckExistFile(envFile)) {
-      uError("fial to load env file: %s", envFile);
+      uError("failed to load env file: %s", envFile);
       return -1;
     }
     filepath = envFile;
   }else {
     if (!taosCheckExistFile(filepath)) {
-      uInfo("fial to load env file: %s", filepath);
+      uInfo("failed to load env file: %s", filepath);
       return 0;
     }
   }

tests/script/tsim/query/complex_having.sim

@@ -215,6 +215,7 @@ sql select count(c1) from stb1
 print ====> sql : select count(c1) from stb1
 print ====> rows: $data00
 if $data00 != 20 then
+  print expect 20, actual: $data00
     return -1
 endi
 

tests/script/tsim/show/basic.sim

@@ -101,7 +101,7 @@ if $rows != 1 then
 endi
 #sql select * from information_schema.user_streams 
 sql select * from information_schema.user_tables
-if $rows != 1 then 
+if $rows != 28 then
   return -1
 endi
 #sql select * from information_schema.user_table_distributed
@@ -199,7 +199,7 @@ if $rows != 1 then
 endi
 #sql select * from information_schema.user_streams 
 sql select * from information_schema.user_tables
-if $rows != 1 then 
+if $rows != 28 then
   return -1
 endi
 #sql select * from information_schema.user_table_distributed

tests/system-test/0-others/taosShell.py

@@ -73,17 +73,19 @@ class TDTestCase:
     hostname = socket.gethostname()
     serverPort = '7080'
     rpcDebugFlagVal = '143'
-    clientCfgDict = {'serverPort': '', 'firstEp': '', 'secondEp':'', 'rpcDebugFlag':'135'}
+    clientCfgDict = {'serverPort': '', 'firstEp': '', 'secondEp':'', 'rpcDebugFlag':'135', 'fqdn':''}
     clientCfgDict["serverPort"]    = serverPort
     clientCfgDict["firstEp"]       = hostname + ':' + serverPort
     clientCfgDict["secondEp"]      = hostname + ':' + serverPort
     clientCfgDict["rpcDebugFlag"]  = rpcDebugFlagVal
+    clientCfgDict["fqdn"] = hostname
 
-    updatecfgDict = {'clientCfg': {}, 'serverPort': '', 'firstEp': '', 'secondEp':''}
+    updatecfgDict = {'clientCfg': {}, 'serverPort': '', 'firstEp': '', 'secondEp':'', 'rpcDebugFlag':'135', 'fqdn':''}
     updatecfgDict["clientCfg"]  = clientCfgDict
     updatecfgDict["serverPort"] = serverPort
     updatecfgDict["firstEp"]    = hostname + ':' + serverPort
     updatecfgDict["secondEp"]   = hostname + ':' + serverPort
+    updatecfgDict["fqdn"] = hostname
 
     print ("===================: ", updatecfgDict)
 
@@ -288,7 +290,7 @@ class TDTestCase:
         retCode = taos_command(buildPath, "f", keyDict['f'], 'performance_schema', keyDict['c'], '', '', '')
         print("============ ret code: ", retCode)
         if retCode != "TAOS_OK":
-            tdLog.exit("taos -s fail")
+            tdLog.exit("taos -f fail")
 
         print ("========== check new db ==========")
         tdSql.query("show databases")        

tests/system-test/fulltest.sh

 #!/bin/bash
 set -e
+set -x
 
 python3 ./test.py -f 0-others/taosShell.py
 

tests/test-all.sh

@@ -93,6 +93,7 @@ function runSimCaseOneByOnefq {
     if [[ $line =~ ^./test.sh* ]] || [[ $line =~ ^run* ]]; then
       #case=`echo $line | grep sim$ |awk '{print $NF}'`
       case=`echo $line | grep -o ".*\.sim" |awk '{print $NF}'`
+      echo "$line    running ..."
 
       start_time=`date +%s`
       date +%F\ %T | tee -a out.log