62 lines
3.2 KiB
C
62 lines
3.2 KiB
C
/* -------------------------------------------------------------------------
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*
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* parse_clause.h
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* handle clauses in parser
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*
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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* Portions Copyright (c) 2021, openGauss Contributors
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*
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* src/include/parser/parse_clause.h
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*
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* -------------------------------------------------------------------------
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*/
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#ifndef PARSE_CLAUSE_H
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#define PARSE_CLAUSE_H
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#include "nodes/relation.h"
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#include "parser/parse_node.h"
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extern void transformFromClause(ParseState* pstate, List* frmList, bool isFirstNode = true, bool isCreateView = false,
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bool isUpdate = false);
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extern List* setTargetTables(ParseState* pstate, List* relation, bool expandInh, bool alsoSource, AclMode requiredPerms);
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extern bool interpretInhOption(InhOption inhOpt);
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extern bool interpretOidsOption(List* defList);
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extern Node* transformFromClauseItem(ParseState* pstate, Node* n, RangeTblEntry** top_rte, int* top_rti,
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RangeTblEntry** right_rte, int* right_rti, List** relnamespace, bool isFirstNode = true,
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bool isCreateView = false, bool isMergeInto = false, bool isUpdate = false);
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extern Node* transformJoinOnClause(ParseState* pstate, JoinExpr* j, RangeTblEntry* l_rte, RangeTblEntry* r_rte,
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List* relnamespace);
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extern Node* transformWhereClause(ParseState* pstate, Node* clause, ParseExprKind exprKind, const char* constructName);
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extern Node* transformLimitClause(ParseState* pstate, Node* clause, ParseExprKind exprKind, const char* constructName);
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extern List* transformGroupClause(
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ParseState* pstate, List* grouplist, List** groupingSets, List** targetlist, List* sortClause, ParseExprKind exprKind, bool useSQL99);
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extern List* transformSortClause(
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ParseState* pstate, List* orderlist, List** targetlist, ParseExprKind exprKind, bool resolveUnknown, bool useSQL99);
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extern List* transformWindowDefinitions(ParseState* pstate, List* windowdefs, List** targetlist);
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extern List* transformDistinctClause(ParseState* pstate, List** targetlist, List* sortClause, bool is_agg);
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extern List* transformDistinctOnClause(ParseState* pstate, List* distinctlist, List** targetlist, List* sortClause);
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extern Index assignSortGroupRef(TargetEntry* tle, List* tlist);
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extern bool targetIsInSortList(TargetEntry* tle, Oid sortop, List* sortList);
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extern List* addTargetToSortList(
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ParseState* pstate, TargetEntry* tle, List* sortlist, List* targetlist, SortBy* sortby, bool resolveUnknown);
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extern ParseNamespaceItem *makeNamespaceItem(RangeTblEntry *rte, bool lateral_only, bool lateral_ok);
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/*
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* StartWith support transformStartWith() is the only entry point for START WITH...CONNECT BY
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* processing in parser/transformar layer
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*/
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extern void transformStartWith(ParseState *pstate, ParseState *origin_pstate, SelectStmt *stmt,
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SelectStmt *origin_stmt, Query *qry, bool is_first_node, bool is_creat_view);
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extern void AddStartWithCTEPseudoReturnColumns(CommonTableExpr *cte, RangeTblEntry *rte, Index rte_index);
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extern void pretransformAggWithUserSet(ParseState* pstate, List** targetList, Node* groupClause, ParseExprKind exprKind);
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#endif /* PARSE_CLAUSE_H */
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