1 /*-------------------------------------------------------------------------
4 * Routines for assigning collation information.
7 * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
8 * Portions Copyright (c) 1994, Regents of the University of California
10 * src/include/parser/parse_collate.h
12 *-------------------------------------------------------------------------
14 #ifndef PARSE_COLLATE_H
15 #define PARSE_COLLATE_H
17 #include "parser/parse_node.h"
19 extern void assign_query_collations(ParseState
*pstate
, Query
*query
);
21 extern void assign_list_collations(ParseState
*pstate
, List
*exprs
);
23 extern void assign_expr_collations(ParseState
*pstate
, Node
*expr
);
25 extern Oid
select_common_collation(ParseState
*pstate
, List
*exprs
, bool none_ok
);
27 #endif /* PARSE_COLLATE_H */