CREATE TABLE test.check_query_comment_column ( first_column UInt8 DEFAULT 1 COMMENT \'comment 1\', fourth_column UInt8 COMMENT \'comment 4\', fifth_column UInt8, second_column UInt8 MATERIALIZED first_column COMMENT \'comment 2\', third_column UInt8 ALIAS second_column COMMENT \'comment 3\') ENGINE = TinyLog first_column UInt8 DEFAULT 1 comment 1 fourth_column UInt8 comment 4 fifth_column UInt8 second_column UInt8 MATERIALIZED first_column comment 2 third_column UInt8 ALIAS second_column comment 3 ┌─table──────────────────────┬─name──────────┬─comment───┐ │ check_query_comment_column │ first_column │ comment 1 │ │ check_query_comment_column │ fourth_column │ comment 4 │ │ check_query_comment_column │ fifth_column │ │ │ check_query_comment_column │ second_column │ comment 2 │ │ check_query_comment_column │ third_column │ comment 3 │ └────────────────────────────┴───────────────┴───────────┘ CREATE TABLE test.check_query_comment_column ( first_column UInt8 DEFAULT 1 COMMENT \'comment 1_1\', fourth_column UInt8 COMMENT \'comment 4_1\', fifth_column UInt8 COMMENT \'comment 5_1\', second_column UInt8 MATERIALIZED first_column COMMENT \'comment 2_1\', third_column UInt8 ALIAS second_column COMMENT \'comment 3_1\') ENGINE = TinyLog ┌─table──────────────────────┬─name──────────┬─comment─────┐ │ check_query_comment_column │ first_column │ comment 1_2 │ │ check_query_comment_column │ fourth_column │ comment 4_2 │ │ check_query_comment_column │ fifth_column │ comment 5_2 │ │ check_query_comment_column │ second_column │ comment 2_2 │ │ check_query_comment_column │ third_column │ comment 3_2 │ └────────────────────────────┴───────────────┴─────────────┘ CREATE TABLE test.check_query_comment_column ( first_column UInt8 DEFAULT 1 COMMENT \'comment 1_2\', fourth_column UInt8 COMMENT \'comment 4_2\', fifth_column UInt8 COMMENT \'comment 5_2\', second_column UInt8 MATERIALIZED first_column COMMENT \'comment 2_2\', third_column UInt8 ALIAS second_column COMMENT \'comment 3_2\') ENGINE = TinyLog CREATE TABLE test.check_query_comment_column ( first_column UInt8 COMMENT \'comment 1\', second_column UInt8 COMMENT \'comment 2\', third_column UInt8 COMMENT \'comment 3\') ENGINE = MergeTree() PARTITION BY second_column ORDER BY first_column SAMPLE BY first_column SETTINGS index_granularity = 8192 first_column UInt8 comment 1 second_column UInt8 comment 2 third_column UInt8 comment 3 ┌─table──────────────────────┬─name──────────┬─comment───┐ │ check_query_comment_column │ first_column │ comment 1 │ │ check_query_comment_column │ second_column │ comment 2 │ │ check_query_comment_column │ third_column │ comment 3 │ └────────────────────────────┴───────────────┴───────────┘ CREATE TABLE test.check_query_comment_column ( first_column UInt8 COMMENT \'comment 1_2\', second_column UInt8 COMMENT \'comment 2_2\', third_column UInt8 COMMENT \'comment 3_2\') ENGINE = MergeTree() PARTITION BY second_column ORDER BY first_column SAMPLE BY first_column SETTINGS index_granularity = 8192 CREATE TABLE test.check_query_comment_column ( first_column UInt8 COMMENT \'comment 1_3\', second_column UInt8 COMMENT \'comment 2_3\', third_column UInt8 COMMENT \'comment 3_3\') ENGINE = MergeTree() PARTITION BY second_column ORDER BY first_column SAMPLE BY first_column SETTINGS index_granularity = 8192 ┌─table──────────────────────┬─name──────────┬─comment─────┐ │ check_query_comment_column │ first_column │ comment 1_3 │ │ check_query_comment_column │ second_column │ comment 2_3 │ │ check_query_comment_column │ third_column │ comment 3_3 │ └────────────────────────────┴───────────────┴─────────────┘