src/include/parser/parse_clause.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * parse_clause.h
   4  *        handle clauses in parser
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * $PostgreSQL: pgsql/src/include/parser/parse_clause.h,v 1.56 2009/08/27 20:08:02 tgl Exp $
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef PARSE_CLAUSE_H
  15 #define PARSE_CLAUSE_H
  16
  17 #include "parser/parse_node.h"
  18
  19 extern void transformFromClause(ParseState *pstate, List *frmList);
  20 extern int setTargetTable(ParseState *pstate, RangeVar *relation,
  21                            bool inh, bool alsoSource, AclMode requiredPerms);
  22 extern bool interpretInhOption(InhOption inhOpt);
  23 extern bool interpretOidsOption(List *defList);
  24
  25 extern Node *transformWhereClause(ParseState *pstate, Node *clause,
  26                                          const char *constructName);
  27 extern Node *transformLimitClause(ParseState *pstate, Node *clause,
  28                                          const char *constructName);
  29 extern List *transformGroupClause(ParseState *pstate, List *grouplist,
  30                                          List **targetlist, List *sortClause,
  31                                          bool isWindowFunc);
  32 extern List *transformSortClause(ParseState *pstate, List *orderlist,
  33                                         List **targetlist, bool resolveUnknown, bool isWindowFunc);
  34
  35 extern List *transformWindowDefinitions(ParseState *pstate,
  36                                                    List *windowdefs,
  37                                                    List **targetlist);
  38
  39 extern List *transformDistinctClause(ParseState *pstate,
  40                                                 List **targetlist, List *sortClause);
  41 extern List *transformDistinctOnClause(ParseState *pstate, List *distinctlist,
  42                                                   List **targetlist, List *sortClause);
  43
  44 extern Index assignSortGroupRef(TargetEntry *tle, List *tlist);
  45 extern bool targetIsInSortList(TargetEntry *tle, Oid sortop, List *sortList);
  46
  47 #endif   /* PARSE_CLAUSE_H */