*
* parse_collate.h
* Routines for assigning collation information.
*
*
* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/parser/parse_collate.h
*
* -------------------------------------------------------------------------
*/
#ifndef PARSE_COLLATE_H
#define PARSE_COLLATE_H
#include "parser/parse_node.h"
extern void assign_query_collations(ParseState* pstate, Query* query);
extern void assign_list_collations(ParseState* pstate, List* exprs);
extern void assign_expr_collations(ParseState* pstate, Node* expr);
extern Oid select_common_collation(ParseState* pstate, List* exprs, bool none_ok);
extern Node *convert_arg_charset(Node *arg_expr, int target_charset, Oid target_collation);
#endif