homework-jianmu/include/libs/parser/parser.h

101 lines
4.0 KiB
C

/*
* 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 _TD_PARSER_H_
#define _TD_PARSER_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "query.h"
#include "querynodes.h"
struct SCatalogReq;
struct SMetaData;
typedef struct SStmtCallback {
TAOS_STMT* pStmt;
int32_t (*getTbNameFn)(TAOS_STMT*, char**);
int32_t (*setInfoFn)(TAOS_STMT*, STableMeta*, void*, char*, bool, SHashObj*, SHashObj*);
int32_t (*getExecInfoFn)(TAOS_STMT*, SHashObj**, SHashObj**);
} SStmtCallback;
typedef struct SParseContext {
uint64_t requestId;
int64_t requestRid;
int32_t acctId;
const char* db;
bool topicQuery;
void* pTransporter;
SEpSet mgmtEpSet;
const char* pSql; // sql string
size_t sqlLen; // length of the sql string
char* pMsg; // extended error message if exists to help identifying the problem in sql statement.
int32_t msgLen; // max length of the msg
struct SCatalog* pCatalog;
SStmtCallback* pStmtCb;
const char* pUser;
bool isSuperUser;
bool async;
int8_t schemalessType;
} SParseContext;
int32_t qParseSql(SParseContext* pCxt, SQuery** pQuery);
bool qIsInsertSql(const char* pStr, size_t length);
// for async mode
int32_t qParseSqlSyntax(SParseContext* pCxt, SQuery** pQuery, struct SCatalogReq* pCatalogReq);
int32_t qAnalyseSqlSemantic(SParseContext* pCxt, const struct SCatalogReq* pCatalogReq,
const struct SMetaData* pMetaData, SQuery* pQuery);
void qDestroyQuery(SQuery* pQueryNode);
int32_t qExtractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema);
int32_t qSetSTableIdForRsma(SNode* pStmt, int64_t uid);
int32_t qBuildStmtOutput(SQuery* pQuery, SHashObj* pVgHash, SHashObj* pBlockHash);
int32_t qResetStmtDataBlock(void* block, bool keepBuf);
int32_t qCloneStmtDataBlock(void** pDst, void* pSrc);
void qFreeStmtDataBlock(void* pDataBlock);
int32_t qRebuildStmtDataBlock(void** pDst, void* pSrc, uint64_t uid, int32_t vgId);
void qDestroyStmtDataBlock(void* pBlock);
STableMeta* qGetTableMetaInDataBlock(void* pDataBlock);
int32_t qStmtBindParams(SQuery* pQuery, TAOS_MULTI_BIND* pParams, int32_t colIdx);
int32_t qStmtParseQuerySql(SParseContext* pCxt, SQuery* pQuery);
int32_t qBindStmtColsValue(void* pBlock, TAOS_MULTI_BIND* bind, char* msgBuf, int32_t msgBufLen);
int32_t qBindStmtSingleColValue(void* pBlock, TAOS_MULTI_BIND* bind, char* msgBuf, int32_t msgBufLen, int32_t colIdx,
int32_t rowNum);
int32_t qBuildStmtColFields(void* pDataBlock, int32_t* fieldNum, TAOS_FIELD_E** fields);
int32_t qBuildStmtTagFields(void* pBlock, void* boundTags, int32_t* fieldNum, TAOS_FIELD_E** fields);
int32_t qBindStmtTagsValue(void* pBlock, void* boundTags, int64_t suid, char* tName, TAOS_MULTI_BIND* bind,
char* msgBuf, int32_t msgBufLen);
void destroyBoundColumnInfo(void* pBoundInfo);
int32_t qCreateSName(SName* pName, const char* pTableName, int32_t acctId, char* dbName, char* msgBuf,
int32_t msgBufLen);
void* smlInitHandle(SQuery* pQuery);
void smlDestroyHandle(void* pHandle);
int32_t smlBindData(void* handle, SArray* tags, SArray* colsSchema, SArray* cols, bool format, STableMeta* pTableMeta,
char* tableName, char* msgBuf, int16_t msgBufLen);
int32_t smlBuildOutput(void* handle, SHashObj* pVgHash);
#ifdef __cplusplus
}
#endif
#endif /*_TD_PARSER_H_*/