diff --git a/src/backend/optimizer/plan/subselect.c b/src/backend/optimizer/plan/subselect.c
index ccec1eaa7fe..6aa8971c95d 100644
--- a/src/backend/optimizer/plan/subselect.c
+++ b/src/backend/optimizer/plan/subselect.c
@@ -841,7 +841,9 @@ hash_ok_operator(OpExpr *expr)
 	if (list_length(expr->args) != 2)
 		return false;
 	if (opid == ARRAY_EQ_OP ||
-		opid == RECORD_EQ_OP)
+		opid == RECORD_EQ_OP ||
+		opid == RANGE_EQ_OP ||
+		opid == MULTIRANGE_EQ_OP)
 	{
 		/* these are strict, but must check input type to ensure hashable */
 		Node	   *leftarg = linitial(expr->args);
diff --git a/src/backend/optimizer/util/clauses.c b/src/backend/optimizer/util/clauses.c
index cd86311bb0b..07738894d1a 100644
--- a/src/backend/optimizer/util/clauses.c
+++ b/src/backend/optimizer/util/clauses.c
@@ -2544,7 +2544,8 @@ convert_saop_to_hashed_saop_walker(Node *node, void *context)
 	if (IsA(node, ScalarArrayOpExpr))
 	{
 		ScalarArrayOpExpr *saop = (ScalarArrayOpExpr *) node;
-		Expr	   *arrayarg = (Expr *) lsecond(saop->args);
+		Node	   *leftarg = (Node *) linitial(saop->args);
+		Node	   *arrayarg = (Node *) lsecond(saop->args);
 		Oid			lefthashfunc;
 		Oid			righthashfunc;
 
@@ -2553,7 +2554,8 @@ convert_saop_to_hashed_saop_walker(Node *node, void *context)
 		{
 			if (saop->useOr)
 			{
-				if (get_op_hash_functions(saop->opno, &lefthashfunc, &righthashfunc) &&
+				if (get_op_hash_functions_ext(saop->opno, exprType(leftarg),
+											  &lefthashfunc, &righthashfunc) &&
 					lefthashfunc == righthashfunc)
 				{
 					Datum		arrdatum = ((Const *) arrayarg)->constvalue;
@@ -2585,7 +2587,8 @@ convert_saop_to_hashed_saop_walker(Node *node, void *context)
 				 * just ensure the lookup items are not in the hash table.
 				 */
 				if (OidIsValid(negator) &&
-					get_op_hash_functions(negator, &lefthashfunc, &righthashfunc) &&
+					get_op_hash_functions_ext(negator, exprType(leftarg),
+											  &lefthashfunc, &righthashfunc) &&
 					lefthashfunc == righthashfunc)
 				{
 					Datum		arrdatum = ((Const *) arrayarg)->constvalue;
diff --git a/src/backend/utils/adt/selfuncs.c b/src/backend/utils/adt/selfuncs.c
index b9449b4574a..d6efd07073a 100644
--- a/src/backend/utils/adt/selfuncs.c
+++ b/src/backend/utils/adt/selfuncs.c
@@ -2476,7 +2476,9 @@ eqjoinsel(PG_FUNCTION_ARGS)
 		 * hash functions for the join operator.
 		 */
 		if ((sslot1.nvalues + sslot2.nvalues) >= EQJOINSEL_MCV_HASH_THRESHOLD)
-			(void) get_op_hash_functions(operator, &hashLeft, &hashRight);
+			(void) get_op_hash_functions_ext(operator,
+											 exprType((Node *) linitial(args)),
+											 &hashLeft, &hashRight);
 	}
 	else
 		memset(&eqproc, 0, sizeof(eqproc)); /* silence uninit-var warnings */
diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c
index 036086057d7..036de5f79ef 100644
--- a/src/backend/utils/cache/lsyscache.c
+++ b/src/backend/utils/cache/lsyscache.c
@@ -472,6 +472,12 @@ get_mergejoin_opfamilies(Oid opno)
  *
  * Returns true if able to find the requested operator(s), false if not.
  * (This indicates that the operator should not have been marked oprcanhash.)
+ *
+ * Callers must beware that for container types (arrays, records, ranges)
+ * this function will succeed for array_eq etc, but the hash function could
+ * fail at runtime if the contained type(s) are not hashable.  If it is
+ * possible that the operator is one of these, precheck with op_hashjoinable
+ * or get_op_hash_functions_ext.
  */
 bool
 get_compatible_hash_operators(Oid opno,
@@ -572,6 +578,12 @@ get_compatible_hash_operators(Oid opno,
  *
  * Returns true if able to find the requested function(s), false if not.
  * (This indicates that the operator should not have been marked oprcanhash.)
+ *
+ * Callers must beware that for container types (arrays, records, ranges)
+ * this function will succeed for array_eq etc, but the hash function could
+ * fail at runtime if the contained type(s) are not hashable.  If it is
+ * possible that the operator is one of these, use get_op_hash_functions_ext
+ * or precheck with op_hashjoinable.
  */
 bool
 get_op_hash_functions(Oid opno,
@@ -654,6 +666,55 @@ get_op_hash_functions(Oid opno,
 	return result;
 }
 
+/*
+ * get_op_hash_functions_ext
+ *		As above, but verify hashability in container-type cases.
+ *
+ * As with op_hashjoinable, assume the left input type is sufficient
+ * to disambiguate container-type cases.
+ */
+bool
+get_op_hash_functions_ext(Oid opno, Oid inputtype,
+						  RegProcedure *lhs_procno, RegProcedure *rhs_procno)
+{
+	TypeCacheEntry *typentry;
+
+	/* Ensure output args are initialized on failure */
+	if (lhs_procno)
+		*lhs_procno = InvalidOid;
+	if (rhs_procno)
+		*rhs_procno = InvalidOid;
+
+	/* As in op_hashjoinable, let the typcache handle the hard cases */
+	if (opno == ARRAY_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc != F_HASH_ARRAY)
+			return false;
+	}
+	else if (opno == RECORD_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc != F_HASH_RECORD)
+			return false;
+	}
+	else if (opno == RANGE_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc != F_HASH_RANGE)
+			return false;
+	}
+	else if (opno == MULTIRANGE_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc != F_HASH_MULTIRANGE)
+			return false;
+	}
+
+	/* OK, do the normal lookup */
+	return get_op_hash_functions(opno, lhs_procno, rhs_procno);
+}
+
 /*
  * get_op_index_interpretation
  *		Given an operator's OID, find out which amcanorder opfamilies it belongs to,
@@ -1624,7 +1685,8 @@ op_mergejoinable(Oid opno, Oid inputtype)
 	 * For array_eq or record_eq, we can sort if the element or field types
 	 * are all sortable.  We could implement all the checks for that here, but
 	 * the typcache already does that and caches the results too, so let's
-	 * rely on the typcache.
+	 * rely on the typcache.  We do not need similar special cases for ranges
+	 * or multiranges, because their subtypes are required to be sortable.
 	 */
 	if (opno == ARRAY_EQ_OP)
 	{
@@ -1659,10 +1721,11 @@ op_mergejoinable(Oid opno, Oid inputtype)
  * Returns true if the operator is hashjoinable.  (There must be a suitable
  * hash opfamily entry for this operator if it is so marked.)
  *
- * In some cases (currently only array_eq), hashjoinability depends on the
- * specific input data type the operator is invoked for, so that must be
- * passed as well.  We currently assume that only one input's type is needed
- * to check this --- by convention, pass the left input's data type.
+ * In some cases (currently array_eq, record_eq, range_eq, multirange_eq),
+ * hashjoinability depends on the specific input data type the operator is
+ * invoked for, so that must be passed as well.  We currently assume that only
+ * one input's type is needed to check this --- by convention, pass the left
+ * input's data type.
  */
 bool
 op_hashjoinable(Oid opno, Oid inputtype)
@@ -1684,6 +1747,18 @@ op_hashjoinable(Oid opno, Oid inputtype)
 		if (typentry->hash_proc == F_HASH_RECORD)
 			result = true;
 	}
+	else if (opno == RANGE_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc == F_HASH_RANGE)
+			result = true;
+	}
+	else if (opno == MULTIRANGE_EQ_OP)
+	{
+		typentry = lookup_type_cache(inputtype, TYPECACHE_HASH_PROC);
+		if (typentry->hash_proc == F_HASH_MULTIRANGE)
+			result = true;
+	}
 	else
 	{
 		/* For all other operators, rely on pg_operator.oprcanhash */
diff --git a/src/backend/utils/cache/typcache.c b/src/backend/utils/cache/typcache.c
index cebe7a916fb..da91a2ff1dd 100644
--- a/src/backend/utils/cache/typcache.c
+++ b/src/backend/utils/cache/typcache.c
@@ -779,8 +779,9 @@ lookup_type_cache(Oid type_id, int flags)
 										  HASHSTANDARD_PROC);
 
 		/*
-		 * As above, make sure hash_array, hash_record, or hash_range will
-		 * succeed.
+		 * As above, make sure hash_array, hash_record, hash_range, or
+		 * hash_multirange will succeed.  Here we do need to check the range
+		 * cases.
 		 */
 		if (hash_proc == F_HASH_ARRAY &&
 			!array_element_has_hashing(typentry))
@@ -791,12 +792,8 @@ lookup_type_cache(Oid type_id, int flags)
 		else if (hash_proc == F_HASH_RANGE &&
 				 !range_element_has_hashing(typentry))
 			hash_proc = InvalidOid;
-
-		/*
-		 * Likewise for hash_multirange.
-		 */
-		if (hash_proc == F_HASH_MULTIRANGE &&
-			!multirange_element_has_hashing(typentry))
+		else if (hash_proc == F_HASH_MULTIRANGE &&
+				 !multirange_element_has_hashing(typentry))
 			hash_proc = InvalidOid;
 
 		/* Force update of hash_proc_finfo only if we're changing state */
@@ -828,8 +825,8 @@ lookup_type_cache(Oid type_id, int flags)
 												   HASHEXTENDED_PROC);
 
 		/*
-		 * As above, make sure hash_array_extended, hash_record_extended, or
-		 * hash_range_extended will succeed.
+		 * As above, make sure hash_array_extended, hash_record_extended,
+		 * hash_range_extended, or hash_multirange_extended will succeed.
 		 */
 		if (hash_extended_proc == F_HASH_ARRAY_EXTENDED &&
 			!array_element_has_extended_hashing(typentry))
@@ -840,12 +837,8 @@ lookup_type_cache(Oid type_id, int flags)
 		else if (hash_extended_proc == F_HASH_RANGE_EXTENDED &&
 				 !range_element_has_extended_hashing(typentry))
 			hash_extended_proc = InvalidOid;
-
-		/*
-		 * Likewise for hash_multirange_extended.
-		 */
-		if (hash_extended_proc == F_HASH_MULTIRANGE_EXTENDED &&
-			!multirange_element_has_extended_hashing(typentry))
+		else if (hash_extended_proc == F_HASH_MULTIRANGE_EXTENDED &&
+				 !multirange_element_has_extended_hashing(typentry))
 			hash_extended_proc = InvalidOid;
 
 		/* Force update of proc finfo only if we're changing state */
diff --git a/src/include/catalog/pg_operator.dat b/src/include/catalog/pg_operator.dat
index 1a8fd8b8645..c7f860c442b 100644
--- a/src/include/catalog/pg_operator.dat
+++ b/src/include/catalog/pg_operator.dat
@@ -3057,7 +3057,7 @@
   oprrest => 'scalargesel', oprjoin => 'scalargejoinsel' },
 
 # generic range type operators
-{ oid => '3882', descr => 'equal',
+{ oid => '3882', oid_symbol => 'RANGE_EQ_OP', descr => 'equal',
   oprname => '=', oprcanmerge => 't', oprcanhash => 't', oprleft => 'anyrange',
   oprright => 'anyrange', oprresult => 'bool', oprcom => '=(anyrange,anyrange)',
   oprnegate => '<>(anyrange,anyrange)', oprcode => 'range_eq',
@@ -3263,7 +3263,7 @@
   oprname => '@@', oprleft => 'jsonb', oprright => 'jsonpath',
   oprresult => 'bool', oprcode => 'jsonb_path_match_opr(jsonb,jsonpath)',
   oprrest => 'matchingsel', oprjoin => 'matchingjoinsel' },
-{ oid => '2860', descr => 'equal',
+{ oid => '2860', oid_symbol => 'MULTIRANGE_EQ_OP', descr => 'equal',
   oprname => '=', oprcanmerge => 't', oprcanhash => 't',
   oprleft => 'anymultirange', oprright => 'anymultirange', oprresult => 'bool',
   oprcom => '=(anymultirange,anymultirange)',
diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h
index 8545e67a632..865980cb0f1 100644
--- a/src/include/utils/lsyscache.h
+++ b/src/include/utils/lsyscache.h
@@ -86,6 +86,8 @@ extern bool get_compatible_hash_operators(Oid opno,
 										  Oid *lhs_opno, Oid *rhs_opno);
 extern bool get_op_hash_functions(Oid opno,
 								  RegProcedure *lhs_procno, RegProcedure *rhs_procno);
+extern bool get_op_hash_functions_ext(Oid opno, Oid inputtype,
+									  RegProcedure *lhs_procno, RegProcedure *rhs_procno);
 extern List *get_op_index_interpretation(Oid opno);
 extern bool equality_ops_are_compatible(Oid opno1, Oid opno2);
 extern bool comparison_ops_are_compatible(Oid opno1, Oid opno2);