tscUtil.h 14.4 KB
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/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef TDENGINE_TSCUTIL_H
#define TDENGINE_TSCUTIL_H

#ifdef __cplusplus
extern "C" {
#endif

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#include "tsched.h"
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#include "exception.h"
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#include "os.h"
#include "qExtbuffer.h"
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#include "taosdef.h"
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#include "tbuffer.h"
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#include "tscLocalMerge.h"
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#include "tsclient.h"
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#define UTIL_TABLE_IS_SUPER_TABLE(metaInfo)  \
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  (((metaInfo)->pTableMeta != NULL) && ((metaInfo)->pTableMeta->tableType == TSDB_SUPER_TABLE))
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#define UTIL_TABLE_IS_CHILD_TABLE(metaInfo) \
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  (((metaInfo)->pTableMeta != NULL) && ((metaInfo)->pTableMeta->tableType == TSDB_CHILD_TABLE))
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#define UTIL_TABLE_IS_NORMAL_TABLE(metaInfo)\
  (!(UTIL_TABLE_IS_SUPER_TABLE(metaInfo) || UTIL_TABLE_IS_CHILD_TABLE(metaInfo)))
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#define UTIL_TABLE_IS_TMP_TABLE(metaInfo)  \
  (((metaInfo)->pTableMeta != NULL) && ((metaInfo)->pTableMeta->tableType == TSDB_TEMP_TABLE))

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#pragma pack(push,1)
// this struct is transfered as binary, padding two bytes to avoid
// an 'uid' whose low bytes is 0xff being recoginized as NULL,
// and set 'pack' to 1 to avoid break existing code.
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typedef struct STidTags {
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  int16_t  padding;
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  int64_t  uid;
  int32_t  tid;
  int32_t  vgId;
  char     tag[];
} STidTags;
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#pragma pack(pop)
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typedef struct SJoinSupporter {
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  SSqlObj*        pObj;           // parent SqlObj
  int32_t         subqueryIndex;  // index of sub query
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  SInterval       interval;
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  SLimitVal       limit;          // limit info
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  uint64_t        uid;            // query table uid
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  SArray*         colList;        // previous query information, no need to use this attribute, and the corresponding attribution
  SArray*         exprList;
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  SFieldInfo      fieldsInfo;
  STagCond        tagCond;
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  SGroupbyExpr groupInfo;       // group by info
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  struct STSBuf*  pTSBuf;          // the TSBuf struct that holds the compressed timestamp array
  FILE*           f;               // temporary file in order to create TSBuf
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  char            path[PATH_MAX];  // temporary file path, todo dynamic allocate memory
  int32_t         tagSize;         // the length of each in the first filter stage
  char*           pIdTagList;      // result of first stage tags
  int32_t         totalLen;
  int32_t         num;
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  SArray*         pVgroupTables;
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} SJoinSupporter;

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typedef struct SMergeCtx {
  SJoinSupporter* p;
  int32_t         idx;
  SArray*         res;
  int8_t          compared;
}SMergeCtx;

typedef struct SMergeTsCtx {
  SJoinSupporter* p;
  STSBuf*         res;
  int64_t         numOfInput;
  int8_t          compared;
}SMergeTsCtx;

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typedef struct SVgroupTableInfo {
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  SVgroupInfo vgInfo;
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  SArray     *itemList;   // SArray<STableIdInfo>
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} SVgroupTableInfo;
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int32_t tscCreateDataBlock(size_t initialSize, int32_t rowSize, int32_t startOffset, SName* name, STableMeta* pTableMeta, STableDataBlocks** dataBlocks);
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void tscDestroyDataBlock(STableDataBlocks* pDataBlock, bool removeMeta);
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void tscSortRemoveDataBlockDupRows(STableDataBlocks* dataBuf);
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void tscDestroyBoundColumnInfo(SParsedDataColInfo* pColInfo);
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void doRetrieveSubqueryData(SSchedMsg *pMsg);
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SParamInfo* tscAddParamToDataBlock(STableDataBlocks* pDataBlock, char type, uint8_t timePrec, int16_t bytes,
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                                   uint32_t offset);

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void*   tscDestroyBlockArrayList(SArray* pDataBlockList);
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void*   tscDestroyBlockHashTable(SHashObj* pBlockHashTable, bool removeMeta);
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int32_t tscCopyDataBlockToPayload(SSqlObj* pSql, STableDataBlocks* pDataBlock);
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int32_t tscMergeTableDataBlocks(SSqlObj* pSql, bool freeBlockMap);
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int32_t tscGetDataBlockFromList(SHashObj* pHashList, int64_t id, int32_t size, int32_t startOffset, int32_t rowSize, SName* pName, STableMeta* pTableMeta,
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                                STableDataBlocks** dataBlocks, SArray* pBlockList);
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/**
 * for the projection query on metric or point interpolation query on metric,
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 * we iterate all the meters, instead of invoke query on all qualified meters simultaneously.
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 *
 * @param pSql  sql object
 * @return
 */
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bool tscIsPointInterpQuery(SQueryInfo* pQueryInfo);
bool tscIsTWAQuery(SQueryInfo* pQueryInfo);
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bool tsIsArithmeticQueryOnAggResult(SQueryInfo* pQueryInfo);
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bool tscGroupbyColumn(SQueryInfo* pQueryInfo);
bool tscIsTopBotQuery(SQueryInfo* pQueryInfo);
bool hasTagValOutput(SQueryInfo* pQueryInfo);
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bool timeWindowInterpoRequired(SQueryInfo *pQueryInfo);
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bool isStabledev(SQueryInfo* pQueryInfo);
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bool isTsCompQuery(SQueryInfo* pQueryInfo);
bool isSimpleAggregate(SQueryInfo* pQueryInfo);
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bool isBlockDistQuery(SQueryInfo* pQueryInfo);
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bool isSimpleAggregateRv(SQueryInfo* pQueryInfo);
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bool tscNonOrderedProjectionQueryOnSTable(SQueryInfo *pQueryInfo, int32_t tableIndex);
bool tscOrderedProjectionQueryOnSTable(SQueryInfo* pQueryInfo, int32_t tableIndex);
bool tscIsProjectionQueryOnSTable(SQueryInfo* pQueryInfo, int32_t tableIndex);

bool tscIsProjectionQuery(SQueryInfo* pQueryInfo);
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bool tscHasColumnFilter(SQueryInfo* pQueryInfo);
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bool tscIsTwoStageSTableQuery(SQueryInfo* pQueryInfo, int32_t tableIndex);
bool tscQueryTags(SQueryInfo* pQueryInfo);
bool tscMultiRoundQuery(SQueryInfo* pQueryInfo, int32_t tableIndex);
bool tscQueryBlockInfo(SQueryInfo* pQueryInfo);

SExprInfo* tscAddFuncInSelectClause(SQueryInfo* pQueryInfo, int32_t outputColIndex, int16_t functionId,
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                                       SColumnIndex* pIndex, SSchema* pColSchema, int16_t colType, int16_t colId);
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int32_t tscSetTableFullName(SName* pName, SStrToken* pzTableName, SSqlObj* pSql);
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void    tscClearInterpInfo(SQueryInfo* pQueryInfo);
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bool tscIsInsertData(char* sqlstr);
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int tscAllocPayload(SSqlCmd* pCmd, int size);
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TAOS_FIELD tscCreateField(int8_t type, const char* name, int16_t bytes);

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SInternalField* tscFieldInfoAppend(SFieldInfo* pFieldInfo, TAOS_FIELD* pField);
SInternalField* tscFieldInfoInsert(SFieldInfo* pFieldInfo, int32_t index, TAOS_FIELD* field);
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SInternalField* tscFieldInfoGetInternalField(SFieldInfo* pFieldInfo, int32_t index);
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TAOS_FIELD* tscFieldInfoGetField(SFieldInfo* pFieldInfo, int32_t index);
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void tscFieldInfoUpdateOffset(SQueryInfo* pQueryInfo);
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int16_t tscFieldInfoGetOffset(SQueryInfo* pQueryInfo, int32_t index);
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void    tscFieldInfoClear(SFieldInfo* pFieldInfo);
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void tscFieldInfoCopy(SFieldInfo* pFieldInfo, const SFieldInfo* pSrc, const SArray* pExprList);
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static FORCE_INLINE int32_t tscNumOfFields(SQueryInfo* pQueryInfo) { return pQueryInfo->fieldsInfo.numOfOutput; }
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int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2, int32_t *diffSize);
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void tscInsertPrimaryTsSourceColumn(SQueryInfo* pQueryInfo, uint64_t uid);
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int32_t tscFieldInfoSetSize(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2);
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void addExprParams(SSqlExpr* pExpr, char* argument, int32_t type, int32_t bytes);
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int32_t   tscGetResRowLength(SArray* pExprList);
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SExprInfo* tscExprInsert(SQueryInfo* pQueryInfo, int32_t index, int16_t functionId, SColumnIndex* pColIndex, int16_t type,
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    int16_t size, int16_t resColId, int16_t interSize, bool isTagCol);
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SExprInfo* tscExprCreate(SQueryInfo* pQueryInfo, int16_t functionId, SColumnIndex* pColIndex, int16_t type,
                         int16_t size, int16_t resColId, int16_t interSize, int32_t colType);

void tscExprAddParams(SSqlExpr* pExpr, char* argument, int32_t type, int32_t bytes);

SExprInfo* tscExprAppend(SQueryInfo* pQueryInfo, int16_t functionId, SColumnIndex* pColIndex, int16_t type,
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                           int16_t size, int16_t resColId, int16_t interSize, bool isTagCol);
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SExprInfo* tscExprUpdate(SQueryInfo* pQueryInfo, int32_t index, int16_t functionId, int16_t srcColumnIndex, int16_t type,
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                           int16_t size);

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size_t     tscNumOfExprs(SQueryInfo* pQueryInfo);
SExprInfo *tscExprGet(SQueryInfo* pQueryInfo, int32_t index);
int32_t    tscExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy);
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int32_t    tscExprCopyAll(SArray* dst, const SArray* src, bool deepcopy);
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void       tscExprAssign(SExprInfo* dst, const SExprInfo* src);
void       tscExprDestroy(SArray* pExprInfo);

int32_t createProjectionExpr(SQueryInfo* pQueryInfo, STableMetaInfo* pTableMetaInfo, SExprInfo*** pExpr, int32_t* num);
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void clearAllTableMetaInfo(SQueryInfo* pQueryInfo, bool removeMeta);

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SColumn* tscColumnClone(const SColumn* src);
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bool tscColumnExists(SArray* pColumnList, int32_t columnIndex, uint64_t uid);
SColumn* tscColumnListInsert(SArray* pColumnList, int32_t columnIndex, uint64_t uid, SSchema* pSchema);
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void tscColumnListDestroy(SArray* pColList);
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void tscColumnListCopy(SArray* dst, const SArray* src, uint64_t tableUid);
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void tscColumnListCopyAll(SArray* dst, const SArray* src);
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void convertQueryResult(SSqlRes* pRes, SQueryInfo* pQueryInfo);

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void tscDequoteAndTrimToken(SStrToken* pToken);
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int32_t tscValidateName(SStrToken* pToken);
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void tscIncStreamExecutionCount(void* pStream);

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bool tscValidateColumnId(STableMetaInfo* pTableMetaInfo, int32_t colId, int32_t numOfParams);
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// get starter position of metric query condition (query on tags) in SSqlCmd.payload
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SCond* tsGetSTableQueryCond(STagCond* pCond, uint64_t uid);
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void   tsSetSTableQueryCond(STagCond* pTagCond, uint64_t uid, SBufferWriter* bw);
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int32_t tscTagCondCopy(STagCond* dest, const STagCond* src);
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void tscTagCondRelease(STagCond* pCond);

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void tscGetSrcColumnInfo(SSrcColumnInfo* pColInfo, SQueryInfo* pQueryInfo);
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bool tscShouldBeFreed(SSqlObj* pSql);
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STableMetaInfo* tscGetTableMetaInfoFromCmd(SSqlCmd *pCmd, int32_t tableIndex);
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STableMetaInfo* tscGetMetaInfo(SQueryInfo *pQueryInfo, int32_t tableIndex);
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void        tscInitQueryInfo(SQueryInfo* pQueryInfo);
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void        tscClearSubqueryInfo(SSqlCmd* pCmd);
int32_t     tscAddQueryInfo(SSqlCmd *pCmd);
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SQueryInfo *tscGetQueryInfo(SSqlCmd* pCmd);
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SQueryInfo *tscGetQueryInfoS(SSqlCmd *pCmd, int32_t subClauseIndex);
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void tscClearTableMetaInfo(STableMetaInfo* pTableMetaInfo);
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STableMetaInfo* tscAddTableMetaInfo(SQueryInfo* pQueryInfo, SName* name, STableMeta* pTableMeta,
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                                    SVgroupsInfo* vgroupList, SArray* pTagCols, SArray* pVgroupTables);
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STableMetaInfo* tscAddEmptyMetaInfo(SQueryInfo *pQueryInfo);
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void tscFreeVgroupTableInfo(SArray* pVgroupTables);
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SArray* tscVgroupTableInfoDup(SArray* pVgroupTables);
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void tscRemoveVgroupTableGroup(SArray* pVgroupTable, int32_t index);
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void tscVgroupTableCopy(SVgroupTableInfo* info, SVgroupTableInfo* pInfo);
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int  tscGetSTableVgroupInfo(SSqlObj* pSql, SQueryInfo* pQueryInfo);
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int  tscGetTableMeta(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo);
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int  tscGetTableMetaEx(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo, bool createIfNotExists);
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void tscResetForNextRetrieve(SSqlRes* pRes);
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void tscDoQuery(SSqlObj* pSql);
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void executeQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo);
void doExecuteQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo);
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SVgroupsInfo* tscVgroupInfoClone(SVgroupsInfo *pInfo);
void* tscVgroupInfoClear(SVgroupsInfo *pInfo);
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void tscSVgroupInfoCopy(SVgroupInfo* dst, const SVgroupInfo* src);
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/**
 * The create object function must be successful expect for the out of memory issue.
 *
 * Therefore, the metermeta/metricmeta object is directly passed to the newly created subquery object from the
 * previous sql object, instead of retrieving the metermeta/metricmeta from cache.
 *
 * Because the metermeta/metricmeta may have been released by other threads, resulting in the retrieving failed as
 * well as the create function.
 *
 * @param pSql
 * @param vnodeIndex
 * @param tableIndex
 * @param fp
 * @param param
 * @param pPrevSql
 * @return
 */
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SSqlObj* createSimpleSubObj(SSqlObj* pSql, __async_cb_func_t fp, void* param, int32_t cmd);
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void registerSqlObj(SSqlObj* pSql);

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SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, __async_cb_func_t fp, void* param, int32_t cmd, SSqlObj* pPrevSql);
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void     addGroupInfoForSubquery(SSqlObj* pParentObj, SSqlObj* pSql, int32_t subClauseIndex, int32_t tableIndex);
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void doAddGroupColumnForSubquery(SQueryInfo* pQueryInfo, int32_t tagIndex, SSqlCmd* pCmd);
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int16_t tscGetJoinTagColIdByUid(STagCond* pTagCond, uint64_t uid);
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int16_t tscGetTagColIndexById(STableMeta* pTableMeta, int16_t colId);
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void tscPrintSelNodeList(SSqlObj* pSql, int32_t subClauseIndex);
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bool hasMoreVnodesToTry(SSqlObj *pSql);
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bool hasMoreClauseToTry(SSqlObj* pSql);

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void tscFreeQueryInfo(SSqlCmd* pCmd, bool removeMeta);
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void tscTryQueryNextVnode(SSqlObj *pSql, __async_cb_func_t fp);
void tscAsyncQuerySingleRowForNextVnode(void *param, TAOS_RES *tres, int numOfRows);
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void tscTryQueryNextClause(SSqlObj* pSql, __async_cb_func_t fp);
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int  tscSetMgmtEpSetFromCfg(const char *first, const char *second, SRpcCorEpSet *corEpSet);
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int32_t getMultiTableMetaFromMnode(SSqlObj *pSql, SArray* pNameList, SArray* pVgroupList);
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int tscTransferTableNameList(SSqlObj *pSql, const char *pNameList, int32_t length);
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bool subAndCheckDone(SSqlObj *pSql, SSqlObj *pParentSql, int idx);

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bool tscSetSqlOwner(SSqlObj* pSql);
void tscClearSqlOwner(SSqlObj* pSql);
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int32_t doArithmeticCalculate(SQueryInfo* pQueryInfo, tFilePage* pOutput, int32_t rowSize, int32_t finalRowSize);
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char*   serializeTagData(STagData* pTagData, char* pMsg);
int32_t copyTagData(STagData* dst, const STagData* src);

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STableMeta* createSuperTableMeta(STableMetaMsg* pChild);
uint32_t tscGetTableMetaSize(STableMeta* pTableMeta);
CChildTableMeta* tscCreateChildMeta(STableMeta* pTableMeta);
uint32_t tscGetTableMetaMaxSize();
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int32_t tscCreateTableMetaFromCChildMeta(STableMeta* pChild, const char* name, void* buf);
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STableMeta* tscTableMetaDup(STableMeta* pTableMeta);
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SVgroupsInfo* tscVgroupsInfoDup(SVgroupsInfo* pVgroupsInfo);

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int32_t tscCreateQueryFromQueryInfo(SQueryInfo* pQueryInfo, SQueryAttr* pQueryAttr, void* addr);
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void tsCreateSQLFunctionCtx(SQueryInfo* pQueryInfo, SQLFunctionCtx* pCtx, SSchema* pSchema);
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void* createQInfoFromQueryNode(SQueryInfo* pQueryInfo, SExprInfo* pExprs, STableGroupInfo* pTableGroupInfo, SOperatorInfo* pOperator, char* sql, void* addr, int32_t stage);
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void* malloc_throw(size_t size);
void* calloc_throw(size_t nmemb, size_t size);
char* strdup_throw(const char* str);

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#ifdef __cplusplus
}
#endif

#endif  // TDENGINE_TSCUTIL_H