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homework-jianmu/include/libs/nodes/querynodes.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 _TD_QUERY_NODES_H_
#define _TD_QUERY_NODES_H_
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
#include "nodes.h"
#include "tmsg.h"
#include "tsimplehash.h"
#include "tvariant.h"
#define TABLE_TOTAL_COL_NUM(pMeta) ((pMeta)->tableInfo.numOfColumns + (pMeta)->tableInfo.numOfTags)
#define TABLE_META_SIZE(pMeta) \
(NULL == (pMeta) ? 0 : (sizeof(STableMeta) + TABLE_TOTAL_COL_NUM((pMeta)) * sizeof(SSchema)))
#define VGROUPS_INFO_SIZE(pInfo) \
(NULL == (pInfo) ? 0 : (sizeof(SVgroupsInfo) + (pInfo)->numOfVgroups * sizeof(SVgroupInfo)))
typedef struct SAssociationNode {
SNode** pPlace;
SNode* pAssociationNode;
} SAssociationNode;
typedef struct SRawExprNode {
ENodeType nodeType;
char* p;
uint32_t n;
SNode* pNode;
bool isPseudoColumn;
} SRawExprNode;
typedef struct SDataType {
uint8_t type;
uint8_t precision;
uint8_t scale;
int32_t bytes;
} SDataType;
typedef struct SExprNode {
ENodeType type;
SDataType resType;
char aliasName[TSDB_COL_NAME_LEN];
char userAlias[TSDB_COL_NAME_LEN];
char srcTable[TSDB_TABLE_NAME_LEN];
SArray* pAssociation;
bool asAlias;
bool asParam;
bool asPosition;
bool joinSrc;
//bool constValue;
int32_t projIdx;
int32_t relatedTo;
int32_t bindExprID;
} SExprNode;
typedef enum EColumnType {
COLUMN_TYPE_COLUMN = 1,
COLUMN_TYPE_TAG,
COLUMN_TYPE_TBNAME,
COLUMN_TYPE_WINDOW_START,
COLUMN_TYPE_WINDOW_END,
COLUMN_TYPE_WINDOW_DURATION,
COLUMN_TYPE_GROUP_KEY
} EColumnType;
typedef struct SColumnNode {
SExprNode node; // QUERY_NODE_COLUMN
uint64_t tableId;
int8_t tableType;
col_id_t colId;
uint16_t projIdx; // the idx in project list, start from 1
EColumnType colType; // column or tag
bool hasIndex;
bool isPrimTs;
char dbName[TSDB_DB_NAME_LEN];
char tableName[TSDB_TABLE_NAME_LEN];
char tableAlias[TSDB_TABLE_NAME_LEN];
char colName[TSDB_COL_NAME_LEN];
int16_t dataBlockId;
int16_t slotId;
int16_t numOfPKs;
bool tableHasPk;
bool isPk;
int32_t projRefIdx;
int32_t resIdx;
} SColumnNode;
typedef struct SColumnRefNode {
ENodeType type;
SDataType resType;
char colName[TSDB_COL_NAME_LEN];
} SColumnRefNode;
typedef struct STargetNode {
ENodeType type;
int16_t dataBlockId;
int16_t slotId;
SNode* pExpr;
} STargetNode;
#define VALUE_FLAG_IS_DURATION (1 << 0)
#define VALUE_FLAG_IS_TIME_OFFSET (1 << 1)
#define IS_DURATION_VAL(_flag) ((_flag)&VALUE_FLAG_IS_DURATION)
#define IS_TIME_OFFSET_VAL(_flag) ((_flag)&VALUE_FLAG_IS_TIME_OFFSET)
typedef struct SValueNode {
SExprNode node; // QUERY_NODE_VALUE
char* literal;
int32_t flag;
bool translate;
bool notReserved;
bool isNull;
int16_t placeholderNo;
union {
bool b;
int64_t i;
uint64_t u;
double d;
char* p;
} datum;
int64_t typeData;
int8_t unit;
timezone_t tz;
void *charsetCxt;
} SValueNode;
typedef struct SLeftValueNode {
ENodeType type;
} SLeftValueNode;
typedef enum EHintOption {
HINT_NO_BATCH_SCAN = 1,
HINT_BATCH_SCAN,
HINT_SORT_FOR_GROUP,
HINT_PARTITION_FIRST,
HINT_PARA_TABLES_SORT,
HINT_SMALLDATA_TS_SORT,
HINT_HASH_JOIN,
HINT_SKIP_TSMA,
} EHintOption;
typedef struct SHintNode {
ENodeType type;
EHintOption option;
void* value;
} SHintNode;
typedef struct SOperatorNode {
SExprNode node; // QUERY_NODE_OPERATOR
EOperatorType opType;
SNode* pLeft;
SNode* pRight;
timezone_t tz;
void* charsetCxt;
} SOperatorNode;
typedef struct SLogicConditionNode {
SExprNode node; // QUERY_NODE_LOGIC_CONDITION
ELogicConditionType condType;
SNodeList* pParameterList;
} SLogicConditionNode;
typedef struct SNodeListNode {
SExprNode node; // QUERY_NODE_NODE_LIST
SNodeList* pNodeList;
} SNodeListNode;
typedef enum ETrimType {
TRIM_TYPE_LEADING = 1,
TRIM_TYPE_TRAILING,
TRIM_TYPE_BOTH,
} ETrimType;
typedef struct SFunctionNode {
SExprNode node; // QUERY_NODE_FUNCTION
char functionName[TSDB_FUNC_NAME_LEN];
int32_t funcId;
int32_t funcType;
SNodeList* pParameterList;
int32_t udfBufSize;
bool hasPk;
int32_t pkBytes;
bool hasOriginalFunc;
int32_t originalFuncId;
ETrimType trimType;
bool dual; // whether select stmt without from stmt, true for without.
timezone_t tz;
void *charsetCxt;
} SFunctionNode;
typedef struct STableNode {
SExprNode node;
char dbName[TSDB_DB_NAME_LEN];
char tableName[TSDB_TABLE_NAME_LEN];
char tableAlias[TSDB_TABLE_NAME_LEN];
uint8_t precision;
bool singleTable;
bool inJoin;
} STableNode;
struct STableMeta;
typedef struct STsmaTargetCTbInfo {
char tableName[TSDB_TABLE_NAME_LEN]; // child table or normal table name
uint64_t uid;
} STsmaTargetTbInfo;
typedef struct SRealTableNode {
STableNode table; // QUERY_NODE_REAL_TABLE
struct STableMeta* pMeta;
SVgroupsInfo* pVgroupList;
char qualDbName[TSDB_DB_NAME_LEN]; // SHOW qualDbName.TABLES
double ratio;
SArray* pSmaIndexes;
int8_t cacheLastMode;
int8_t stbRewrite;
SArray* pTsmas;
SArray* tsmaTargetTbVgInfo; // SArray<SVgroupsInfo*>, used for child table or normal table only
SArray* tsmaTargetTbInfo; // SArray<STsmaTargetTbInfo>, used for child table or normal table only
} SRealTableNode;
typedef struct STempTableNode {
STableNode table; // QUERY_NODE_TEMP_TABLE
SNode* pSubquery;
} STempTableNode;
typedef struct SViewNode {
STableNode table; // QUERY_NODE_REAL_TABLE
struct STableMeta* pMeta;
SVgroupsInfo* pVgroupList;
char qualDbName[TSDB_DB_NAME_LEN]; // SHOW qualDbName.TABLES
double ratio;
SArray* pSmaIndexes;
int8_t cacheLastMode;
} SViewNode;
#define JOIN_JLIMIT_MAX_VALUE 1024
#define IS_INNER_NONE_JOIN(_type, _stype) ((_type) == JOIN_TYPE_INNER && (_stype) == JOIN_STYPE_NONE)
#define IS_SEMI_JOIN(_stype) ((_stype) == JOIN_STYPE_SEMI)
#define IS_WINDOW_JOIN(_stype) ((_stype) == JOIN_STYPE_WIN)
#define IS_ASOF_JOIN(_stype) ((_stype) == JOIN_STYPE_ASOF)
typedef enum EJoinType {
JOIN_TYPE_INNER = 0,
JOIN_TYPE_LEFT,
JOIN_TYPE_RIGHT,
JOIN_TYPE_FULL,
JOIN_TYPE_MAX_VALUE
} EJoinType;
typedef enum EJoinSubType {
JOIN_STYPE_NONE = 0,
JOIN_STYPE_OUTER,
JOIN_STYPE_SEMI,
JOIN_STYPE_ANTI,
JOIN_STYPE_ASOF,
JOIN_STYPE_WIN,
JOIN_STYPE_MAX_VALUE
} EJoinSubType;
typedef enum EJoinAlgorithm {
JOIN_ALGO_UNKNOWN = 0,
JOIN_ALGO_MERGE,
JOIN_ALGO_HASH,
} EJoinAlgorithm;
typedef enum EDynQueryType {
DYN_QTYPE_STB_HASH = 1,
} EDynQueryType;
typedef struct SJoinTableNode {
STableNode table; // QUERY_NODE_JOIN_TABLE
EJoinType joinType;
EJoinSubType subType;
SNode* pWindowOffset;
SNode* pJLimit;
SNode* addPrimCond;
bool hasSubQuery;
bool isLowLevelJoin;
bool leftNoOrderedSubQuery;
bool rightNoOrderedSubQuery;
//bool condAlwaysTrue;
//bool condAlwaysFalse;
SNode* pLeft;
SNode* pRight;
SNode* pOnCond;
} SJoinTableNode;
typedef enum EGroupingSetType { GP_TYPE_NORMAL = 1 } EGroupingSetType;
typedef struct SGroupingSetNode {
ENodeType type; // QUERY_NODE_GROUPING_SET
EGroupingSetType groupingSetType;
SNodeList* pParameterList;
} SGroupingSetNode;
typedef enum EOrder { ORDER_ASC = 1, ORDER_DESC } EOrder;
typedef enum ENullOrder { NULL_ORDER_DEFAULT = 1, NULL_ORDER_FIRST, NULL_ORDER_LAST } ENullOrder;
typedef struct SOrderByExprNode {
ENodeType type; // QUERY_NODE_ORDER_BY_EXPR
SNode* pExpr;
EOrder order;
ENullOrder nullOrder;
} SOrderByExprNode;
typedef struct SLimitNode {
ENodeType type; // QUERY_NODE_LIMIT
SValueNode* limit;
SValueNode* offset;
} SLimitNode;
typedef struct SStateWindowNode {
ENodeType type; // QUERY_NODE_STATE_WINDOW
SNode* pCol; // timestamp primary key
SNode* pExpr;
SNode* pTrueForLimit;
} SStateWindowNode;
typedef struct SSessionWindowNode {
ENodeType type; // QUERY_NODE_SESSION_WINDOW
SColumnNode* pCol; // timestamp primary key
SValueNode* pGap; // gap between two session window(in microseconds)
} SSessionWindowNode;
typedef struct SIntervalWindowNode {
ENodeType type; // QUERY_NODE_INTERVAL_WINDOW
SNode* pCol; // timestamp primary key
SNode* pInterval; // SValueNode
SNode* pOffset; // SValueNode
SNode* pSliding; // SValueNode
SNode* pFill;
STimeWindow timeRange;
void* timezone;
} SIntervalWindowNode;
typedef struct SEventWindowNode {
ENodeType type; // QUERY_NODE_EVENT_WINDOW
SNode* pCol; // timestamp primary key
SNode* pStartCond;
SNode* pEndCond;
SNode* pTrueForLimit;
} SEventWindowNode;
typedef struct SCountWindowNode {
ENodeType type; // QUERY_NODE_EVENT_WINDOW
SNode* pCol; // timestamp primary key
int64_t windowCount;
int64_t windowSliding;
} SCountWindowNode;
typedef struct SAnomalyWindowNode {
ENodeType type; // QUERY_NODE_ANOMALY_WINDOW
SNode* pCol; // timestamp primary key
SNode* pExpr;
char anomalyOpt[TSDB_ANALYTIC_ALGO_OPTION_LEN];
} SAnomalyWindowNode;
typedef enum EFillMode {
FILL_MODE_NONE = 1,
FILL_MODE_VALUE,
FILL_MODE_VALUE_F,
FILL_MODE_PREV,
FILL_MODE_NULL,
FILL_MODE_NULL_F,
FILL_MODE_LINEAR,
FILL_MODE_NEXT,
FILL_MODE_NEAR,
} EFillMode;
typedef enum ETimeLineMode {
TIME_LINE_NONE = 1,
TIME_LINE_BLOCK,
TIME_LINE_MULTI,
TIME_LINE_GLOBAL,
} ETimeLineMode;
typedef enum EShowKind {
SHOW_KIND_ALL = 1,
SHOW_KIND_TABLES_NORMAL,
SHOW_KIND_TABLES_CHILD,
SHOW_KIND_DATABASES_USER,
SHOW_KIND_DATABASES_SYSTEM
} EShowKind;
typedef struct SFillNode {
ENodeType type; // QUERY_NODE_FILL
EFillMode mode;
SNode* pValues; // SNodeListNode
SNode* pWStartTs; // _wstart pseudo column
STimeWindow timeRange;
} SFillNode;
typedef struct SWhenThenNode {
SExprNode node; // QUERY_NODE_WHEN_THEN
SNode* pWhen;
SNode* pThen;
} SWhenThenNode;
typedef struct SCaseWhenNode {
SExprNode node; // QUERY_NODE_CASE_WHEN
SNode* pCase;
SNode* pElse;
SNodeList* pWhenThenList;
timezone_t tz;
void* charsetCxt;
} SCaseWhenNode;
typedef struct SWindowOffsetNode {
ENodeType type; // QUERY_NODE_WINDOW_OFFSET
SNode* pStartOffset; // SValueNode
SNode* pEndOffset; // SValueNode
} SWindowOffsetNode;
typedef struct SRangeAroundNode {
ENodeType type;
SNode* pRange;
SNode* pInterval;
} SRangeAroundNode;
typedef struct SSelectStmt {
ENodeType type; // QUERY_NODE_SELECT_STMT
bool isDistinct;
STimeWindow timeRange;
SNodeList* pProjectionList;
SNodeList* pProjectionBindList;
SNode* pFromTable;
SNode* pWhere;
SNodeList* pPartitionByList;
SNodeList* pTags; // for create stream
SNode* pSubtable; // for create stream
SNode* pWindow;
SNodeList* pGroupByList; // SGroupingSetNode
SNode* pHaving;
SNode* pRange;
SNode* pRangeAround;
SNode* pEvery;
SNode* pFill;
SNodeList* pOrderByList; // SOrderByExprNode
SLimitNode* pLimit;
SLimitNode* pSlimit;
SNodeList* pHint;
char stmtName[TSDB_TABLE_NAME_LEN];
uint8_t precision;
int32_t selectFuncNum;
int32_t returnRows; // EFuncReturnRows
ETimeLineMode timeLineCurMode;
ETimeLineMode timeLineResMode;
int32_t lastProcessByRowFuncId;
bool timeLineFromOrderBy;
bool isEmptyResult;
bool isSubquery;
bool hasAggFuncs;
bool hasRepeatScanFuncs;
bool hasIndefiniteRowsFunc;
bool hasMultiRowsFunc;
bool hasSelectFunc;
bool hasSelectValFunc;
bool hasOtherVectorFunc;
bool hasUniqueFunc;
bool hasTailFunc;
bool hasInterpFunc;
bool hasInterpPseudoColFunc;
bool hasForecastFunc;
bool hasForecastPseudoColFunc;
bool hasLastRowFunc;
bool hasLastFunc;
bool hasTimeLineFunc;
bool hasCountFunc;
bool hasUdaf;
bool hasStateKey;
bool hasTwaOrElapsedFunc;
bool onlyHasKeepOrderFunc;
bool groupSort;
bool tagScan;
bool joinContains;
bool mixSysTableAndActualTable;
} SSelectStmt;
typedef enum ESetOperatorType { SET_OP_TYPE_UNION_ALL = 1, SET_OP_TYPE_UNION } ESetOperatorType;
typedef struct SSetOperator {
ENodeType type; // QUERY_NODE_SET_OPERATOR
ESetOperatorType opType;
SNodeList* pProjectionList;
SNode* pLeft;
SNode* pRight;
SNodeList* pOrderByList; // SOrderByExprNode
SNode* pLimit;
char stmtName[TSDB_TABLE_NAME_LEN];
uint8_t precision;
ETimeLineMode timeLineResMode;
bool timeLineFromOrderBy;
bool joinContains;
} SSetOperator;
typedef enum ESqlClause {
SQL_CLAUSE_FROM = 1,
SQL_CLAUSE_WHERE,
SQL_CLAUSE_PARTITION_BY,
SQL_CLAUSE_WINDOW,
SQL_CLAUSE_FILL,
SQL_CLAUSE_GROUP_BY,
SQL_CLAUSE_HAVING,
SQL_CLAUSE_DISTINCT,
SQL_CLAUSE_SELECT,
SQL_CLAUSE_ORDER_BY
} ESqlClause;
typedef struct SDeleteStmt {
ENodeType type; // QUERY_NODE_DELETE_STMT
SNode* pFromTable; // FROM clause
SNode* pWhere; // WHERE clause
SNode* pCountFunc; // count the number of rows affected
SNode* pFirstFunc; // the start timestamp when the data was actually deleted
SNode* pLastFunc; // the end timestamp when the data was actually deleted
SNode* pTagCond; // pWhere divided into pTagCond and timeRange
STimeWindow timeRange;
uint8_t precision;
bool deleteZeroRows;
} SDeleteStmt;
typedef struct SInsertStmt {
ENodeType type; // QUERY_NODE_INSERT_STMT
SNode* pTable;
SNodeList* pCols;
SNode* pQuery;
uint8_t precision;
} SInsertStmt;
typedef struct SVgDataBlocks {
SVgroupInfo vg;
int32_t numOfTables; // number of tables in current submit block
uint32_t size;
void* pData; // SSubmitReq + SSubmitBlk + ...
} SVgDataBlocks;
typedef void (*FFreeTableBlockHash)(SHashObj*);
typedef void (*FFreeVgourpBlockArray)(SArray*);
struct SStbRowsDataContext;
typedef void (*FFreeStbRowsDataContext)(struct SStbRowsDataContext*);
struct SCreateTbInfo;
struct SParseFileContext;
typedef void (*FDestroyParseFileContext)(struct SParseFileContext**);
typedef struct SVnodeModifyOpStmt {
ENodeType nodeType;
ENodeType sqlNodeType;
SArray* pDataBlocks; // data block for each vgroup, SArray<SVgDataBlocks*>.
uint32_t insertType; // insert data from [file|sql statement| bound statement]
const char* pSql; // current sql statement position
int32_t totalRowsNum;
int32_t totalTbNum;
SName targetTableName;
SName usingTableName;
const char* pBoundCols;
struct STableMeta* pTableMeta;
SNode* pTagCond;
SArray* pTableTag;
SHashObj* pVgroupsHashObj; // SHashObj<vgId, SVgInfo>
SHashObj* pTableBlockHashObj; // SHashObj<tuid, STableDataCxt*>
SHashObj* pSubTableHashObj; // SHashObj<table_name, STableMeta*>
SHashObj* pSuperTableHashObj; // SHashObj<table_name, STableMeta*>
SHashObj* pTableNameHashObj; // set of table names for refreshing meta, sync mode
SHashObj* pDbFNameHashObj; // set of db names for refreshing meta, sync mode
SHashObj* pTableCxtHashObj; // temp SHashObj<tuid, STableDataCxt*> for single request
SArray* pVgDataBlocks; // SArray<SVgroupDataCxt*>
SVCreateTbReq* pCreateTblReq;
TdFilePtr fp;
FFreeTableBlockHash freeHashFunc;
FFreeVgourpBlockArray freeArrayFunc;
bool usingTableProcessing;
bool fileProcessing;
bool stbSyntax;
struct SStbRowsDataContext* pStbRowsCxt;
FFreeStbRowsDataContext freeStbRowsCxtFunc;
struct SCreateTbInfo* pCreateTbInfo;
struct SParseFileContext* pParFileCxt;
FDestroyParseFileContext destroyParseFileCxt;
} SVnodeModifyOpStmt;
typedef struct SExplainOptions {
ENodeType type;
bool verbose;
double ratio;
} SExplainOptions;
typedef struct SExplainStmt {
ENodeType type;
bool analyze;
SExplainOptions* pOptions;
SNode* pQuery;
} SExplainStmt;
typedef struct SCmdMsgInfo {
int16_t msgType;
SEpSet epSet;
void* pMsg;
int32_t msgLen;
} SCmdMsgInfo;
typedef enum EQueryExecMode {
QUERY_EXEC_MODE_LOCAL = 1,
QUERY_EXEC_MODE_RPC,
QUERY_EXEC_MODE_SCHEDULE,
QUERY_EXEC_MODE_EMPTY_RESULT
} EQueryExecMode;
typedef enum EQueryExecStage {
QUERY_EXEC_STAGE_PARSE = 1,
QUERY_EXEC_STAGE_ANALYSE,
QUERY_EXEC_STAGE_SCHEDULE,
QUERY_EXEC_STAGE_END
} EQueryExecStage;
typedef struct SQuery {
ENodeType type;
EQueryExecStage execStage;
EQueryExecMode execMode;
int32_t msgType;
int32_t numOfResCols;
int32_t placeholderNum;
int8_t precision;
bool haveResultSet;
bool showRewrite;
bool stableQuery;
SNode* pPrevRoot;
SNode* pRoot;
SNode* pPostRoot;
SSchema* pResSchema;
SCmdMsgInfo* pCmdMsg;
SArray* pTargetTableList;
SArray* pTableList;
SArray* pDbList;
SArray* pPlaceholderValues;
SNode* pPrepareRoot;
} SQuery;
void nodesWalkSelectStmtImpl(SSelectStmt* pSelect, ESqlClause clause, FNodeWalker walker, void* pContext);
void nodesWalkSelectStmt(SSelectStmt* pSelect, ESqlClause clause, FNodeWalker walker, void* pContext);
void nodesRewriteSelectStmt(SSelectStmt* pSelect, ESqlClause clause, FNodeRewriter rewriter, void* pContext);
typedef enum ECollectColType { COLLECT_COL_TYPE_COL = 1, COLLECT_COL_TYPE_TAG, COLLECT_COL_TYPE_ALL } ECollectColType;
int32_t nodesCollectColumns(SSelectStmt* pSelect, ESqlClause clause, const char* pTableAlias, ECollectColType type,
SNodeList** pCols);
int32_t nodesCollectColumnsExt(SSelectStmt* pSelect, ESqlClause clause, SSHashObj* pMultiTableAlias,
ECollectColType type, SNodeList** pCols);
int32_t nodesCollectColumnsFromNode(SNode* node, const char* pTableAlias, ECollectColType type, SNodeList** pCols);
typedef bool (*FFuncClassifier)(int32_t funcId);
int32_t nodesCollectFuncs(SSelectStmt* pSelect, ESqlClause clause, char* tableAlias, FFuncClassifier classifier,
SNodeList** pFuncs);
int32_t nodesCollectSelectFuncs(SSelectStmt* pSelect, ESqlClause clause, char* tableAlias, FFuncClassifier classifier,
SNodeList* pFuncs);
int32_t nodesCollectSpecialNodes(SSelectStmt* pSelect, ESqlClause clause, ENodeType type, SNodeList** pNodes);
bool nodesIsExprNode(const SNode* pNode);
bool nodesIsUnaryOp(const SOperatorNode* pOp);
bool nodesIsArithmeticOp(const SOperatorNode* pOp);
bool nodesIsComparisonOp(const SOperatorNode* pOp);
bool nodesIsJsonOp(const SOperatorNode* pOp);
bool nodesIsRegularOp(const SOperatorNode* pOp);
bool nodesIsMatchRegularOp(const SOperatorNode* pOp);
bool nodesIsBitwiseOp(const SOperatorNode* pOp);
bool nodesExprHasColumn(SNode* pNode);
bool nodesExprsHasColumn(SNodeList* pList);
void* nodesGetValueFromNode(SValueNode* pNode);
int32_t nodesSetValueNodeValue(SValueNode* pNode, void* value);
char* nodesGetStrValueFromNode(SValueNode* pNode);
int32_t nodesValueNodeToVariant(const SValueNode* pNode, SVariant* pVal);
int32_t nodesMakeValueNodeFromString(char* literal, SValueNode** ppValNode);
int32_t nodesMakeValueNodeFromBool(bool b, SValueNode** ppValNode);
int32_t nodesMakeValueNodeFromInt32(int32_t value, SNode** ppNode);
int32_t nodesMakeValueNodeFromInt64(int64_t value, SNode** ppNode);
char* nodesGetFillModeString(EFillMode mode);
int32_t nodesMergeConds(SNode** pDst, SNodeList** pSrc);
const char* operatorTypeStr(EOperatorType type);
const char* logicConditionTypeStr(ELogicConditionType type);
bool nodesIsStar(SNode* pNode);
bool nodesIsTableStar(SNode* pNode);
char* getJoinTypeString(EJoinType type);
char* getJoinSTypeString(EJoinSubType type);
char* getFullJoinTypeString(EJoinType type, EJoinSubType stype);
int32_t mergeJoinConds(SNode** ppDst, SNode** ppSrc);
void rewriteExprAliasName(SExprNode* pNode, int64_t num);
bool isRelatedToOtherExpr(SExprNode* pExpr);
bool nodesContainsColumn(SNode* pNode);
int32_t nodesMergeNode(SNode** pCond, SNode** pAdditionalCond);
#ifdef __cplusplus
}
#endif
#endif /*_TD_QUERY_NODES_H_*/
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