1 files changed, 27 insertions, 0 deletions
diff --git a/src/include/parser/parse_collate.h b/src/include/parser/parse_collate.h
new file mode 100644
index 0000000..45245d6
--- /dev/null
+++ b/src/include/parser/parse_collate.h
@@ -0,0 +1,27 @@
+/*-------------------------------------------------------------------------
+ *
+ * parse_collate.h
+ *	Routines for assigning collation information.
+ *
+ *
+ * Portions Copyright (c) 1996-2021, 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);
+
+#endif							/* PARSE_COLLATE_H */