DROP TABLE insert_into1; CREATE TABLE insert_into1 (key int, value string); EXPLAIN INSERT INTO TABLE insert_into1 SELECT * from src LIMIT 100; INSERT INTO TABLE insert_into1 SELECT * from src LIMIT 100; SELECT SUM(HASH(c)) FROM ( SELECT TRANSFORM(*) USING 'tr \t _' AS (c) FROM insert_into1 ) t; EXPLAIN INSERT INTO TABLE insert_into1 SELECT * FROM src LIMIT 100; INSERT INTO TABLE insert_into1 SELECT * FROM src LIMIT 100; SELECT SUM(HASH(c)) FROM ( SELECT TRANSFORM(*) USING 'tr \t _' AS (c) FROM insert_into1 ) t; SELECT COUNT(*) FROM insert_into1; EXPLAIN INSERT OVERWRITE TABLE insert_into1 SELECT * FROM src LIMIT 10; INSERT OVERWRITE TABLE insert_into1 SELECT * FROM src LIMIT 10; SELECT SUM(HASH(c)) FROM ( SELECT TRANSFORM(*) USING 'tr \t _' AS (c) FROM insert_into1 ) t; DROP TABLE insert_into1;