Added a test from Mikhail Kalashnikov for ALIAS columns in Distributed tables #590 #1947

dbms/tests/queries/0_stateless/00594_alias_in_distributed.reference

+1	12345	12345
+2	54321	0
+0		0
+1	12345	12345
+2	54321	0
+0		0
+1	12345
+2	54321
+0	
+1	12345	12345
+2	54321	0
+0		0
+1	12345	12345
+2	54321	0
+0		0
+1	12345
+2	54321
+0	
+12345	12345
+54321	0
+	0
+12345
+0
+0
+12345	12345
+54321	0
+	0
+12345
+0
+0
+1	12345	12345
+2	54321	0
+0		0
+1	12345	12345
+2	54321	0
+0		0
+1	12345
+2	54321
+0	
+1	12345	12345
+2	54321	0
+0		0
+1	12345	12345
+2	54321	0
+0		0
+1	12345
+2	54321
+0	
+12345	12345
+54321	0
+	0
+12345
+0
+0
+12345	12345
+54321	0
+	0
+12345
+0
+0

dbms/tests/queries/0_stateless/00594_alias_in_distributed.sql

+DROP TABLE IF EXISTS test.alias_local10;
+DROP TABLE IF EXISTS test.alias10;
+
+CREATE TABLE test.alias_local10 (
+  Id Int8,
+  EventDate Date DEFAULT '2000-01-01',
+  field1 Int8,
+  field2 String,
+  field3 ALIAS CASE WHEN field1 = 1 THEN field2 ELSE '0' END
+) ENGINE = MergeTree(EventDate, (Id, EventDate), 8192);
+
+CREATE TABLE test.alias10 AS test.alias_local10 ENGINE = Distributed(test_shard_localhost, test, alias_local10, cityHash64(Id));
+
+INSERT INTO test.alias_local10 (Id, EventDate, field1, field2) VALUES (1, '2000-01-01', 1, '12345'), (2, '2000-01-01', 2, '54321'), (3, '2000-01-01', 0, '');
+
+SELECT field1, field2, field3 FROM test.alias_local10;
+SELECT field1, field2, field3 FROM test.alias_local10 WHERE EventDate='2000-01-01';
+SELECT field1, field2 FROM test.alias_local10 WHERE EventDate='2000-01-01';
+
+SELECT field1, field2, field3 FROM test.alias10;
+SELECT field1, field2, field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field1, field2 FROM test.alias10 WHERE EventDate='2000-01-01';
+
+SELECT field2, field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field2, field3 FROM test.alias10;
+SELECT field3 FROM test.alias10;
+
+DROP TABLE test.alias10;
+CREATE TABLE test.alias10 (
+  Id Int8,
+  EventDate Date,
+  field1 Int8,
+  field2 String,
+  field3 String
+) ENGINE = Distributed(test_shard_localhost, test, alias_local10);
+
+SELECT field1, field2, field3 FROM test.alias_local10;
+SELECT field1, field2, field3 FROM test.alias_local10 WHERE EventDate='2000-01-01';
+SELECT field1, field2 FROM test.alias_local10 WHERE EventDate='2000-01-01';
+
+SELECT field1, field2, field3 FROM test.alias10;
+SELECT field1, field2, field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field1, field2 FROM test.alias10 WHERE EventDate='2000-01-01';
+
+SELECT field2, field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field3 FROM test.alias10 WHERE EventDate='2000-01-01';
+SELECT field2, field3 FROM test.alias10;
+SELECT field3 FROM test.alias10;
+
+DROP TABLE test.alias_local10;
+DROP TABLE test.alias10;