granicus.if.org Git - postgresql/blob - src/include/parser/parse_clause.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * parse_clause.h
   4  *        handle clauses in parser
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2008, 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 1.51 2008/08/02 21:32:01 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 extern List *transformSortClause(ParseState *pstate, List *orderlist,
  32                                         List **targetlist, bool resolveUnknown);
  33 extern List *transformDistinctClause(ParseState *pstate,
  34                                                 List **targetlist, List *sortClause);
  35 extern List *transformDistinctOnClause(ParseState *pstate, List *distinctlist,
  36                                                 List **targetlist, List *sortClause);
  37
  38 extern List *addTargetToGroupList(ParseState *pstate, TargetEntry *tle,
  39                                          List *grouplist, List *targetlist,
  40                                          bool requireSortOp, bool resolveUnknown);
  41 extern Index assignSortGroupRef(TargetEntry *tle, List *tlist);
  42 extern bool targetIsInSortList(TargetEntry *tle, Oid sortop, List *sortList);
  43
  44 #endif   /* PARSE_CLAUSE_H */