CREATE TABLE default.check_comments\n(\n `column_name1` UInt8 DEFAULT 1 COMMENT \'comment\',\n `column_name2` UInt8 COMMENT \'non default comment\'\n)\nENGINE = ReplicatedMergeTree(\'clickhouse/tables/test_00753/comments\', \'r1\')\nORDER BY column_name1\nSETTINGS index_granularity = 8192 column_name1 UInt8 DEFAULT 1 comment column_name2 UInt8 non default comment CREATE TABLE default.check_comments\n(\n `column_name1` UInt8 DEFAULT 1 COMMENT \'another comment\',\n `column_name2` UInt8 COMMENT \'non default comment\'\n)\nENGINE = ReplicatedMergeTree(\'clickhouse/tables/test_00753/comments\', \'r1\')\nORDER BY column_name1\nSETTINGS index_granularity = 8192 column_name1 UInt8 DEFAULT 1 another comment column_name2 UInt8 non default comment