src/include/parser/parse_collate.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * parse_collate.h
   4  *      Routines for assigning collation information.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * src/include/parser/parse_collate.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef PARSE_COLLATE_H
  15 #define PARSE_COLLATE_H
  16
  17 #include "parser/parse_node.h"
  18
  19 extern void assign_query_collations(ParseState *pstate, Query *query);
  20
  21 extern void assign_list_collations(ParseState *pstate, List *exprs);
  22
  23 extern void assign_expr_collations(ParseState *pstate, Node *expr);
  24
  25 extern Oid      select_common_collation(ParseState *pstate, List *exprs, bool none_ok);
  26
  27 #endif                                                  /* PARSE_COLLATE_H */