111 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			2.9 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_INT_H_
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#define _TD_PARSER_INT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "catalog.h"
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#include "tname.h"
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#include "astGenerator.h"
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struct SSqlNode;
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typedef struct SInternalField {
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  TAOS_FIELD      field;
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  bool            visible;
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  SExprInfo      *pExpr;
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} SInternalField;
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typedef struct SMsgBuf {
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  int32_t len;
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  char   *buf;
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} SMsgBuf;
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// create table operation type
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enum TSQL_CREATE_TABLE_TYPE {
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  TSQL_CREATE_TABLE  = 0x1,
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  TSQL_CREATE_STABLE = 0x2,
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  TSQL_CREATE_CTABLE = 0x3,
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  TSQL_CREATE_STREAM = 0x4,
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};
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void clearTableMetaInfo(STableMetaInfo* pTableMetaInfo);
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void clearAllTableMetaInfo(SQueryStmtInfo* pQueryInfo, bool removeMeta, uint64_t id);
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/**
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 * Validate the sql info, according to the corresponding metadata info from catalog.
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 * @param pCatalog
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 * @param pSqlInfo
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 * @param pQueryInfo a bounded AST with essential meta data from local buffer or mgmt node
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 * @param id
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 * @param msg
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 * @return
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 */
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int32_t qParserValidateSqlNode(struct SCatalog* pCatalog, SSqlInfo* pSqlInfo, SQueryStmtInfo* pQueryInfo, int64_t id, char* msg, int32_t msgLen);
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/**
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 * validate the ddl ast, and convert the ast to the corresponding message format
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 * @param pSqlInfo
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 * @param output
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 * @param type
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 * @return
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 */
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int32_t qParserValidateDclSqlNode(SSqlInfo* pInfo, SParseBasicCtx* pCtx, SDclStmtInfo* pDcl, char* msgBuf, int32_t msgBufLen);
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/**
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 * Evaluate the numeric and timestamp arithmetic expression in the WHERE clause.
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 * @param pNode
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 * @param tsPrecision
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 * @param msg
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 * @param msgBufLen
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 * @return
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 */
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int32_t evaluateSqlNode(SSqlNode* pNode, int32_t tsPrecision, SMsgBuf* pMsgBuf);
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int32_t validateSqlNode(SSqlNode* pSqlNode, SQueryStmtInfo* pQueryInfo, SMsgBuf* pMsgBuf);
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SQueryStmtInfo* createQueryInfo();
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void destroyQueryInfo(SQueryStmtInfo* pQueryInfo);
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int32_t checkForInvalidExpr(SQueryStmtInfo* pQueryInfo, SMsgBuf* pMsgBuf);
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/**
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 * Extract request meta info from the sql statement
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 * @param pSqlInfo
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 * @param pMetaInfo
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 * @param msg
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 * @param msgBufLen
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 * @return
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 */
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int32_t qParserExtractRequestedMetaInfo(const SSqlInfo* pSqlInfo, SCatalogReq* pMetaInfo, char* msg, int32_t msgBufLen);
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/**
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 * Destroy the meta data request structure.
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 * @param pMetaInfo
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 */
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void qParserClearupMetaRequestInfo(SCatalogReq* pMetaInfo);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_PARSER_INT_H_*/ |