diff --git a/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.reference b/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.reference
new file mode 100644
index 00000000000..f06dd5d7e5c
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.reference
@@ -0,0 +1,41 @@
+0	([100,200],[30,30])
+0	([100,200],[30,30])
+1	([100,200],[30,30])
+2	([100,200],[30,30])
+3	([100,200],[30,30])
+4	([100,200],[30,30])
+5	([100,200],[30,30])
+6	([100,200],[30,30])
+7	([100,200],[30,30])
+8	([100,200],[30,30])
+9	([100,200],[30,30])
+0	([100,200],[30,30])
+1	([100,200],[30,30])
+2	([100,200],[30,30])
+3	([100,200],[30,30])
+4	([100,200],[30,30])
+5	([100,200],[30,30])
+6	([100,200],[30,30])
+7	([100,200],[30,30])
+8	([100,200],[30,30])
+9	([100,200],[30,30])
+0	400
+1	400
+2	400
+3	400
+4	400
+5	400
+6	400
+7	400
+8	400
+9	400
+0	[100,100,200]
+1	[100,100,200]
+2	[100,100,200]
+3	[100,100,200]
+4	[100,100,200]
+5	[100,100,200]
+6	[100,100,200]
+7	[100,100,200]
+8	[100,100,200]
+9	[100,100,200]
diff --git a/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.sql b/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.sql
new file mode 100644
index 00000000000..aabe9275169
--- /dev/null
+++ b/dbms/tests/queries/0_stateless/00978_sum_map_bugfix.sql
@@ -0,0 +1,9 @@
+select number, arrayReduce( 'sumMap', [a],[b]  ) from (select [100,100,200] a,[10,20,30] b, number from numbers(1));
+
+select number, arrayReduce( 'sumMap', [a],[b]  ) from (select materialize([100,100,200]) a,materialize([10,20,30]) b, number from numbers(10));
+
+select number, arrayReduce( 'sumMap', [a],[b]  ) from (select [100,100,200] a,[10,20,30] b, number from numbers(10));
+
+select number, arrayReduce( 'sum', a) from (select materialize([100,100,200]) a, number from numbers(10));
+
+ select number, arrayReduce( 'max', [a] ) from (select materialize([100,100,200]) a, number from numbers(10));