format TabSeparated TabSeparatedWithNames TabSeparatedWithNamesAndTypes CSV CSVWithNames JSONEachRow JSONCompactEachRow JSONCompactEachRowWithNamesAndTypes TSKV CREATE TABLE IF NOT EXISTS table_src_{format} ENGINE = File({format}) AS test.hits CREATE TABLE IF NOT EXISTS table_dst_{format} AS test.hits INSERT INTO table_src_{format} SELECT * FROM test.hits LIMIT 100000 INSERT INTO table_dst_{format} SELECT * FROM table_src_{format} DROP TABLE IF EXISTS table_src_{format} DROP TABLE IF EXISTS table_dst_{format}