src/include/parser/parse_node.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * parse_node.h
   4  *
   5  *
   6  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * $Id: parse_node.h,v 1.22 2000/09/29 18:21:40 tgl Exp $
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef PARSE_NODE_H
  14 #define PARSE_NODE_H
  15
  16 #include "nodes/parsenodes.h"
  17 #include "utils/rel.h"
  18
  19 /*
  20  * State information used during parse analysis
  21  */
  22 typedef struct ParseState
  23 {
  24         struct ParseState *parentParseState; /* stack link */
  25         List       *p_rtable;           /* range table so far */
  26         List       *p_joinlist;         /* join items so far (will become
  27                                                                  * FromExpr node's fromlist) */
  28         int                     p_last_resno;   /* last targetlist resno assigned */
  29         bool            p_hasAggs;
  30         bool            p_hasSubLinks;
  31         bool            p_is_insert;
  32         bool            p_is_update;
  33         Relation        p_target_relation;
  34         RangeTblEntry *p_target_rangetblentry;
  35 } ParseState;
  36
  37 extern ParseState *make_parsestate(ParseState *parentParseState);
  38 extern Expr *make_op(char *opname, Node *ltree, Node *rtree);
  39 extern Node *make_operand(char *opname, Node *tree,
  40                          Oid orig_typeId, Oid target_typeId);
  41 extern Var *make_var(ParseState *pstate, RangeTblEntry *rte, int attrno);
  42 extern ArrayRef *transformArraySubscripts(ParseState *pstate,
  43                                                  Node *arrayBase,
  44                                                  List *indirection,
  45                                                  bool forceSlice,
  46                                                  Node *assignFrom);
  47 extern Const *make_const(Value *value);
  48
  49 #endif   /* PARSE_NODE_H */