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homework-jianmu/src/client/inc/tscUtil.h

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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
#include "exception.h"
#include "os.h"
#include "qExtbuffer.h"
#include "taosdef.h"
#include "tbuffer.h"
#include "tscLocalMerge.h"
#include "tsclient.h"
#define UTIL_TABLE_IS_SUPER_TABLE(metaInfo) \
(((metaInfo)->pTableMeta != NULL) && ((metaInfo)->pTableMeta->tableType == TSDB_SUPER_TABLE))
#define UTIL_TABLE_IS_CHILD_TABLE(metaInfo) \
(((metaInfo)->pTableMeta != NULL) && ((metaInfo)->pTableMeta->tableType == TSDB_CHILD_TABLE))
#define UTIL_TABLE_IS_NORMAL_TABLE(metaInfo)\
(!(UTIL_TABLE_IS_SUPER_TABLE(metaInfo) || UTIL_TABLE_IS_CHILD_TABLE(metaInfo)))
#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.
typedef struct STidTags {
int16_t padding;
int64_t uid;
int32_t tid;
int32_t vgId;
char tag[];
} STidTags;
#pragma pack(pop)
typedef struct SJoinSupporter {
SSqlObj* pObj; // parent SqlObj
int32_t subqueryIndex; // index of sub query
SInterval interval;
SLimitVal limit; // limit info
uint64_t uid; // query table uid
SArray* colList; // previous query information, no need to use this attribute, and the corresponding attribution
SArray* exprList;
SFieldInfo fieldsInfo;
STagCond tagCond;
SSqlGroupbyExpr groupInfo; // group by info
struct STSBuf* pTSBuf; // the TSBuf struct that holds the compressed timestamp array
FILE* f; // temporary file in order to create TSBuf
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;
SArray* pVgroupTables;
} SJoinSupporter;
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;
typedef struct SVgroupTableInfo {
SVgroupInfo vgInfo;
SArray *itemList; // SArray<STableIdInfo>
} SVgroupTableInfo;
static FORCE_INLINE SQueryInfo* tscGetQueryInfo(SSqlCmd* pCmd, int32_t subClauseIndex) {
assert(pCmd != NULL && subClauseIndex >= 0);
if (pCmd->pQueryInfo == NULL || subClauseIndex >= pCmd->numOfClause) {
return NULL;
}
return pCmd->pQueryInfo[subClauseIndex];
}
SQueryInfo* tscGetActiveQueryInfo(SSqlCmd* pCmd);
int32_t tscCreateDataBlock(size_t initialSize, int32_t rowSize, int32_t startOffset, SName* name, STableMeta* pTableMeta, STableDataBlocks** dataBlocks);
void tscDestroyDataBlock(STableDataBlocks* pDataBlock, bool removeMeta);
void tscSortRemoveDataBlockDupRows(STableDataBlocks* dataBuf);
void tscDestroyBoundColumnInfo(SParsedDataColInfo* pColInfo);
SParamInfo* tscAddParamToDataBlock(STableDataBlocks* pDataBlock, char type, uint8_t timePrec, int16_t bytes,
uint32_t offset);
void* tscDestroyBlockArrayList(SArray* pDataBlockList);
void* tscDestroyBlockHashTable(SHashObj* pBlockHashTable, bool removeMeta);
int32_t tscCopyDataBlockToPayload(SSqlObj* pSql, STableDataBlocks* pDataBlock);
int32_t tscMergeTableDataBlocks(SSqlObj* pSql, bool freeBlockMap);
int32_t tscGetDataBlockFromList(SHashObj* pHashList, int64_t id, int32_t size, int32_t startOffset, int32_t rowSize, SName* pName, STableMeta* pTableMeta,
STableDataBlocks** dataBlocks, SArray* pBlockList);
/**
* for the projection query on metric or point interpolation query on metric,
* we iterate all the meters, instead of invoke query on all qualified meters simultaneously.
*
* @param pSql sql object
* @return
*/
bool tscIsPointInterpQuery(SQueryInfo* pQueryInfo);
bool tscIsTWAQuery(SQueryInfo* pQueryInfo);
bool tscIsSecondStageQuery(SQueryInfo* pQueryInfo);
bool tscGroupbyColumn(SQueryInfo* pQueryInfo);
bool tscIsTopBotQuery(SQueryInfo* pQueryInfo);
bool hasTagValOutput(SQueryInfo* pQueryInfo);
bool timeWindowInterpoRequired(SQueryInfo *pQueryInfo);
bool isStabledev(SQueryInfo* pQueryInfo);
bool isTsCompQuery(SQueryInfo* pQueryInfo);
bool isSimpleAggregate(SQueryInfo* pQueryInfo);
bool isBlockDistQuery(SQueryInfo* pQueryInfo);
int32_t tscGetTopbotQueryParam(SQueryInfo* pQueryInfo);
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);
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,
SColumnIndex* pIndex, SSchema* pColSchema, int16_t colType);
int32_t tscSetTableFullName(STableMetaInfo* pTableMetaInfo, SStrToken* pzTableName, SSqlObj* pSql);
void tscClearInterpInfo(SQueryInfo* pQueryInfo);
bool tscIsInsertData(char* sqlstr);
int tscAllocPayload(SSqlCmd* pCmd, int size);
TAOS_FIELD tscCreateField(int8_t type, const char* name, int16_t bytes);
SInternalField* tscFieldInfoAppend(SFieldInfo* pFieldInfo, TAOS_FIELD* pField);
SInternalField* tscFieldInfoInsert(SFieldInfo* pFieldInfo, int32_t index, TAOS_FIELD* field);
SInternalField* tscFieldInfoGetInternalField(SFieldInfo* pFieldInfo, int32_t index);
TAOS_FIELD* tscFieldInfoGetField(SFieldInfo* pFieldInfo, int32_t index);
void tscFieldInfoUpdateOffset(SQueryInfo* pQueryInfo);
int16_t tscFieldInfoGetOffset(SQueryInfo* pQueryInfo, int32_t index);
void tscFieldInfoClear(SFieldInfo* pFieldInfo);
static FORCE_INLINE int32_t tscNumOfFields(SQueryInfo* pQueryInfo) { return pQueryInfo->fieldsInfo.numOfOutput; }
int32_t tscFieldInfoCompare(const SFieldInfo* pFieldInfo1, const SFieldInfo* pFieldInfo2);
void addExprParams(SSqlExpr* pExpr, char* argument, int32_t type, int32_t bytes);
int32_t tscGetResRowLength(SArray* pExprList);
SExprInfo* tscSqlExprInsert(SQueryInfo* pQueryInfo, int32_t index, int16_t functionId, SColumnIndex* pColIndex, int16_t type,
int16_t size, int16_t resColId, int16_t interSize, bool isTagCol);
SExprInfo* tscSqlExprAppend(SQueryInfo* pQueryInfo, int16_t functionId, SColumnIndex* pColIndex, int16_t type,
int16_t size, int16_t resColId, int16_t interSize, bool isTagCol);
SExprInfo* tscSqlExprUpdate(SQueryInfo* pQueryInfo, int32_t index, int16_t functionId, int16_t srcColumnIndex, int16_t type,
int16_t size);
size_t tscSqlExprNumOfExprs(SQueryInfo* pQueryInfo);
void tscInsertPrimaryTsSourceColumn(SQueryInfo* pQueryInfo, uint64_t uid);
SExprInfo* tscSqlExprGet(SQueryInfo* pQueryInfo, int32_t index);
int32_t tscSqlExprCopy(SArray* dst, const SArray* src, uint64_t uid, bool deepcopy);
void tscSqlExprAssign(SExprInfo* dst, const SExprInfo* src);
void tscSqlExprInfoDestroy(SArray* pExprInfo);
SColumn* tscColumnClone(const SColumn* src);
bool tscColumnExists(SArray* pColumnList, int32_t columnIndex, uint64_t uid);
SColumn* tscColumnListInsert(SArray* pColumnList, int32_t columnIndex, uint64_t uid, SSchema* pSchema);
void tscColumnListDestroy(SArray* pColList);
void convertQueryResult(SSqlRes* pRes, SQueryInfo* pQueryInfo);
void tscDequoteAndTrimToken(SStrToken* pToken);
int32_t tscValidateName(SStrToken* pToken);
void tscIncStreamExecutionCount(void* pStream);
bool tscValidateColumnId(STableMetaInfo* pTableMetaInfo, int32_t colId, int32_t numOfParams);
// get starter position of metric query condition (query on tags) in SSqlCmd.payload
SCond* tsGetSTableQueryCond(STagCond* pCond, uint64_t uid);
void tsSetSTableQueryCond(STagCond* pTagCond, uint64_t uid, SBufferWriter* bw);
int32_t tscTagCondCopy(STagCond* dest, const STagCond* src);
void tscTagCondRelease(STagCond* pCond);
void tscGetSrcColumnInfo(SSrcColumnInfo* pColInfo, SQueryInfo* pQueryInfo);
bool tscShouldBeFreed(SSqlObj* pSql);
STableMetaInfo* tscGetTableMetaInfoFromCmd(SSqlCmd *pCmd, int32_t subClauseIndex, int32_t tableIndex);
STableMetaInfo* tscGetMetaInfo(SQueryInfo *pQueryInfo, int32_t tableIndex);
void tscInitQueryInfo(SQueryInfo* pQueryInfo);
void tscClearSubqueryInfo(SSqlCmd* pCmd);
int32_t tscAddQueryInfo(SSqlCmd *pCmd);
SQueryInfo *tscGetQueryInfo(SSqlCmd* pCmd, int32_t subClauseIndex);
SQueryInfo *tscGetQueryInfoS(SSqlCmd *pCmd, int32_t subClauseIndex);
void tscClearTableMetaInfo(STableMetaInfo* pTableMetaInfo);
STableMetaInfo* tscAddTableMetaInfo(SQueryInfo* pQueryInfo, SName* name, STableMeta* pTableMeta,
SVgroupsInfo* vgroupList, SArray* pTagCols, SArray* pVgroupTables);
STableMetaInfo* tscAddEmptyMetaInfo(SQueryInfo *pQueryInfo);
void tscFreeVgroupTableInfo(SArray* pVgroupTables);
SArray* tscVgroupTableInfoDup(SArray* pVgroupTables);
void tscRemoveVgroupTableGroup(SArray* pVgroupTable, int32_t index);
void tscVgroupTableCopy(SVgroupTableInfo* info, SVgroupTableInfo* pInfo);
int tscGetSTableVgroupInfo(SSqlObj* pSql, int32_t clauseIndex);
int tscGetTableMeta(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo);
int tscGetTableMetaEx(SSqlObj* pSql, STableMetaInfo* pTableMetaInfo, bool createIfNotExists);
void tscResetForNextRetrieve(SSqlRes* pRes);
void tscDoQuery(SSqlObj* pSql);
void executeQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo);
void doExecuteQuery(SSqlObj* pSql, SQueryInfo* pQueryInfo);
SVgroupsInfo* tscVgroupInfoClone(SVgroupsInfo *pInfo);
void* tscVgroupInfoClear(SVgroupsInfo *pInfo);
void tscSVgroupInfoCopy(SVgroupInfo* dst, const SVgroupInfo* src);
/**
* 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
*/
SSqlObj* createSimpleSubObj(SSqlObj* pSql, __async_cb_func_t fp, void* param, int32_t cmd);
void registerSqlObj(SSqlObj* pSql);
SSqlObj* createSubqueryObj(SSqlObj* pSql, int16_t tableIndex, __async_cb_func_t fp, void* param, int32_t cmd, SSqlObj* pPrevSql);
void addGroupInfoForSubquery(SSqlObj* pParentObj, SSqlObj* pSql, int32_t subClauseIndex, int32_t tableIndex);
void doAddGroupColumnForSubquery(SQueryInfo* pQueryInfo, int32_t tagIndex);
int16_t tscGetJoinTagColIdByUid(STagCond* pTagCond, uint64_t uid);
int16_t tscGetTagColIndexById(STableMeta* pTableMeta, int16_t colId);
void tscPrintSelNodeList(SSqlObj* pSql, int32_t subClauseIndex);
bool hasMoreVnodesToTry(SSqlObj *pSql);
bool hasMoreClauseToTry(SSqlObj* pSql);
void tscFreeQueryInfo(SSqlCmd* pCmd, bool removeMeta);
void tscTryQueryNextVnode(SSqlObj *pSql, __async_cb_func_t fp);
void tscAsyncQuerySingleRowForNextVnode(void *param, TAOS_RES *tres, int numOfRows);
void tscTryQueryNextClause(SSqlObj* pSql, __async_cb_func_t fp);
int tscSetMgmtEpSetFromCfg(const char *first, const char *second, SRpcCorEpSet *corEpSet);
bool tscSetSqlOwner(SSqlObj* pSql);
void tscClearSqlOwner(SSqlObj* pSql);
int32_t doArithmeticCalculate(SQueryInfo* pQueryInfo, tFilePage* pOutput, int32_t rowSize, int32_t finalRowSize);
char* serializeTagData(STagData* pTagData, char* pMsg);
int32_t copyTagData(STagData* dst, const STagData* src);
STableMeta* createSuperTableMeta(STableMetaMsg* pChild);
uint32_t tscGetTableMetaSize(STableMeta* pTableMeta);
CChildTableMeta* tscCreateChildMeta(STableMeta* pTableMeta);
uint32_t tscGetTableMetaMaxSize();
int32_t tscCreateTableMetaFromCChildMeta(STableMeta* pChild, const char* name);
STableMeta* tscTableMetaDup(STableMeta* pTableMeta);
int32_t tscCreateQueryFromQueryInfo(SQueryInfo* pQueryInfo, SQueryAttr* pQueryAttr, void* addr);
void tsCreateSQLFunctionCtx(SQueryInfo* pQueryInfo, SQLFunctionCtx* pCtx, SSchema* pSchema);
void* createQueryInfoFromQueryNode(SQueryInfo* pQueryInfo, SExprInfo* pExprs, STableGroupInfo* pTableGroupInfo, SOperatorInfo* pOperator, char* sql, void* addr, int32_t stage);
void* malloc_throw(size_t size);
void* calloc_throw(size_t nmemb, size_t size);
char* strdup_throw(const char* str);
#ifdef __cplusplus
}
#endif
#endif // TDENGINE_TSCUTIL_H
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