Quelle  parse_target.h

/*-------------------------------------------------------------------------
 *
 * parse_target.h
 *   handle target lists
 *
 *
 * Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/parser/parse_target.h
 *
 *-------------------------------------------------------------------------
 */
#ifndef PARSE_TARGET_H
#define PARSE_TARGET_H

#include "parser/parse_node.h"


extern List *transformTargetList(ParseState *pstate, List *targetlist,
         ParseExprKind exprKind);
extern List *transformExpressionList(ParseState *pstate, List *exprlist,
          ParseExprKind exprKind, bool allowDefault);
extern void resolveTargetListUnknowns(ParseState *pstate, List *targetlist);
extern void markTargetListOrigins(ParseState *pstate, List *targetlist);
extern TargetEntry *transformTargetEntry(ParseState *pstate,
           Node *node, Node *expr, ParseExprKind exprKind,
           char *colname, bool resjunk);
extern Expr *transformAssignedExpr(ParseState *pstate, Expr *expr,
           ParseExprKind exprKind,
           const char *colname,
           int attrno,
           List *indirection,
           int location);
extern void updateTargetListEntry(ParseState *pstate, TargetEntry *tle,
          char *colname, int attrno,
          List *indirection,
          int location);
extern Node *transformAssignmentIndirection(ParseState *pstate,
           Node *basenode,
           const char *targetName,
           bool targetIsSubscripting,
           Oid targetTypeId,
           int32 targetTypMod,
           Oid targetCollation,
           List *indirection,
           ListCell *indirection_cell,
           Node *rhs,
           CoercionContext ccontext,
           int location);
extern List *checkInsertTargets(ParseState *pstate, List *cols,
        List **attrnos);
extern TupleDesc expandRecordVariable(ParseState *pstate, Var *var,
           int levelsup);
extern char *FigureColname(Node *node);
extern char *FigureIndexColname(Node *node);

#endif       /* PARSE_TARGET_H */