84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_PARSER_H_
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#define _TD_PARSER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "querynodes.h"
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typedef struct SStmtCallback {
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TAOS_STMT* pStmt;
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int32_t (*getTbNameFn)(TAOS_STMT*, char**);
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} SStmtCallback;
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typedef struct SParseContext {
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uint64_t requestId;
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int32_t acctId;
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const char *db;
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bool topicQuery;
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void *pTransporter;
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SEpSet mgmtEpSet;
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const char *pSql; // sql string
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size_t sqlLen; // length of the sql string
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char *pMsg; // extended error message if exists to help identifying the problem in sql statement.
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int32_t msgLen; // max length of the msg
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struct SCatalog *pCatalog;
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SStmtCallback *pStmtCb;
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} SParseContext;
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typedef struct SCmdMsgInfo {
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int16_t msgType;
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SEpSet epSet;
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void* pMsg;
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int32_t msgLen;
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void* pExtension; // todo remove it soon
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} SCmdMsgInfo;
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typedef enum EQueryExecMode {
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QUERY_EXEC_MODE_LOCAL = 1,
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QUERY_EXEC_MODE_RPC,
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QUERY_EXEC_MODE_SCHEDULE,
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QUERY_EXEC_MODE_EMPTY_RESULT
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} EQueryExecMode;
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typedef struct SQuery {
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EQueryExecMode execMode;
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bool haveResultSet;
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SNode* pRoot;
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int32_t numOfResCols;
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SSchema* pResSchema;
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SCmdMsgInfo* pCmdMsg;
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int32_t msgType;
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SArray* pDbList;
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SArray* pTableList;
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bool showRewrite;
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} SQuery;
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int32_t qParseQuerySql(SParseContext* pCxt, SQuery** pQuery);
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void qDestroyQuery(SQuery* pQueryNode);
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int32_t qExtractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_PARSER_H_*/
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