Added test.

tests/queries/0_stateless/01272_totals_and_filter_bug.reference

@@ -0,0 +1,7 @@
+1	1
+
+0	2
+-
+test1	10	0
+
+	30	70

tests/queries/0_stateless/01272_totals_and_filter_bug.sql

@@ -0,0 +1,34 @@
+select * from (select number, count() from numbers(2) group by number with totals) where number > 0 settings enable_optimize_predicate_expression=0;
+
+select '-';
+
+CREATE TABLE foo (server_date Date, dimension_1 String, metric_1 UInt32) ENGINE = MergeTree() PARTITION BY toYYYYMM(server_date) ORDER BY (server_date);
+CREATE TABLE bar (server_date Date, dimension_1 String, metric_2 UInt32) ENGINE = MergeTree() PARTITION BY toYYYYMM(server_date) ORDER BY (server_date);
+
+INSERT INTO foo VALUES ('2020-01-01', 'test1', 10), ('2020-01-01', 'test2', 20);
+INSERT INTO bar VALUES ('2020-01-01', 'test2', 30), ('2020-01-01', 'test3', 40);
+
+SELECT 
+    dimension_1, 
+    sum_metric_1, 
+    sum_metric_2
+FROM 
+(
+    SELECT 
+        dimension_1, 
+        sum(metric_1) AS sum_metric_1
+    FROM foo
+    GROUP BY dimension_1
+        WITH TOTALS
+) AS subquery_1
+ALL FULL OUTER JOIN 
+(
+    SELECT 
+        dimension_1, 
+        sum(metric_2) AS sum_metric_2
+    FROM bar
+    GROUP BY dimension_1
+        WITH TOTALS
+) AS subquery_2 USING (dimension_1)
+WHERE sum_metric_2 < 20
+ORDER BY dimension_1 ASC;