1 /*------------------------------------------------------------------------- 2 * 3 * parse_collate.h 4 * Routines for assigning collation information. 5 * 6 * 7 * Portions Copyright (c) 1996-2017, 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 */ 28