CREATE TABLE default.check_query_comment_column (`first_column` UInt8 DEFAULT 1 COMMENT \'comment 1\', `second_column` UInt8 MATERIALIZED first_column COMMENT \'comment 2\', `third_column` UInt8 ALIAS second_column COMMENT \'comment 3\', `fourth_column` UInt8 COMMENT \'comment 4\', `fifth_column` UInt8) ENGINE = TinyLog
first_column	UInt8	DEFAULT	1	comment 1		
second_column	UInt8	MATERIALIZED	first_column	comment 2		
third_column	UInt8	ALIAS	second_column	comment 3		
fourth_column	UInt8			comment 4		
fifth_column	UInt8					
┌─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 │
│ check_query_comment_column │ fourth_column │ comment 4 │
│ check_query_comment_column │ fifth_column  │           │
└────────────────────────────┴───────────────┴───────────┘
CREATE TABLE default.check_query_comment_column (`first_column` UInt8 DEFAULT 1 COMMENT \'comment 1_1\', `second_column` UInt8 MATERIALIZED first_column COMMENT \'comment 2_1\', `third_column` UInt8 ALIAS second_column COMMENT \'comment 3_1\', `fourth_column` UInt8 COMMENT \'comment 4_1\', `fifth_column` UInt8 COMMENT \'comment 5_1\') ENGINE = TinyLog
┌─table──────────────────────┬─name──────────┬─comment─────┐
│ check_query_comment_column │ first_column  │ comment 1_2 │
│ check_query_comment_column │ second_column │ comment 2_2 │
│ check_query_comment_column │ third_column  │ comment 3_2 │
│ check_query_comment_column │ fourth_column │ comment 4_2 │
│ check_query_comment_column │ fifth_column  │ comment 5_2 │
└────────────────────────────┴───────────────┴─────────────┘
CREATE TABLE default.check_query_comment_column (`first_column` UInt8 DEFAULT 1 COMMENT \'comment 1_2\', `second_column` UInt8 MATERIALIZED first_column COMMENT \'comment 2_2\', `third_column` UInt8 ALIAS second_column COMMENT \'comment 3_2\', `fourth_column` UInt8 COMMENT \'comment 4_2\', `fifth_column` UInt8 COMMENT \'comment 5_2\') ENGINE = TinyLog
CREATE TABLE default.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 default.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 default.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 │
└────────────────────────────┴───────────────┴─────────────┘