1 files changed, 36 insertions, 0 deletions
diff --git a/src/include/access/indexamvalidate.h b/src/include/access/indexamvalidate.h
new file mode 100644
index 00000000000..69a0520c0a6
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+++ b/src/include/access/indexamvalidate.h
@@ -0,0 +1,36 @@
+/*-------------------------------------------------------------------------
+ *
+ * indexamvalidate.h
+ *	  Support routines for index access methods' amvalidate functions.
+ *
+ * Copyright (c) 2016-2019, PostgreSQL Global Development Group
+ *
+ * src/include/access/indexamvalidate.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef INDEXAMVALIDATE_H
+#define INDEXAMVALIDATE_H
+
+#include "utils/catcache.h"
+
+
+/* Struct returned (in a list) by identify_opfamily_groups() */
+typedef struct OpFamilyOpFuncGroup
+{
+	Oid			lefttype;		/* amoplefttype/amproclefttype */
+	Oid			righttype;		/* amoprighttype/amprocrighttype */
+	uint64		operatorset;	/* bitmask of operators with these types */
+	uint64		functionset;	/* bitmask of support funcs with these types */
+} OpFamilyOpFuncGroup;
+
+
+/* Functions in access/index/indexamvalidate.c */
+extern List *identify_opfamily_groups(CatCList *oprlist, CatCList *proclist);
+extern bool check_amproc_signature(Oid funcid, Oid restype, bool exact,
+								   int minargs, int maxargs,...);
+extern bool check_amop_signature(Oid opno, Oid restype,
+								 Oid lefttype, Oid righttype);
+extern bool opfamily_can_sort_type(Oid opfamilyoid, Oid datatypeoid);
+
+#endif							/* INDEXAMVALIDATE_H */