homework-jianmu/source/libs/parser/inc/queryInfoUtil.h

51 lines
1.7 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 TDENGINE_QUERYINFOUTIL_H
#define TDENGINE_QUERYINFOUTIL_H
#ifdef __cplusplus
extern "C" {
#endif
#include "parserInt.h"
SSchema* getTbnameColumnSchema();
int32_t getNumOfColumns(const STableMeta* pTableMeta);
int32_t getNumOfTags(const STableMeta* pTableMeta);
SSchema *getTableColumnSchema(const STableMeta *pTableMeta);
SSchema *getTableTagSchema(const STableMeta* pTableMeta);
SArray *getCurrentExprList(SQueryStmtInfo* pQueryInfo);
size_t getNumOfExprs(SQueryStmtInfo* pQueryInfo);
void addExprInfo(SArray* pExprList, int32_t index, SExprInfo* pExprInfo, int32_t level);
void updateExprInfo(SExprInfo* pExprInfo, int16_t functionId, int32_t colId, int16_t srcColumnIndex, int16_t resType, int16_t resSize);
SExprInfo* getExprInfo(SQueryStmtInfo* pQueryInfo, int32_t index);
void addExprInfoParam(SSqlExpr* pExpr, char* argument, int32_t type, int32_t bytes);
void cleanupFieldInfo(SFieldInfo* pFieldInfo);
STableComInfo getTableInfo(const STableMeta* pTableMeta);
SArray *extractFunctionList(SArray* pExprInfoList);
#ifdef __cplusplus
}
#endif
#endif // TDENGINE_QUERYINFOUTIL_H