CREATE TABLE test.v1 (a int, b int); INSERT INTO test.v1 VALUES (1, 100), (2, 200), (3, 300); CREATE TABLE test.t1 (a int, b int); INSERT INTO test.t1 VALUES (1, 100), (2, 200), (3, 300); TRUNCATE TABLE performance_schema.events_statements_summary_by_digest; EXPLAIN EXTENDED SELECT * from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`v1`.`a` AS `a`,`test`.`v1`.`b` AS `b` from `test`.`v1` EXPLAIN EXTENDED SELECT * from test.v1 where a = 1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select `test`.`v1`.`a` AS `a`,`test`.`v1`.`b` AS `b` from `test`.`v1` where `test`.`v1`.`a` = 1 EXPLAIN EXTENDED SELECT * from test.v1 where b > 100; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select `test`.`v1`.`a` AS `a`,`test`.`v1`.`b` AS `b` from `test`.`v1` where `test`.`v1`.`b` > 100 EXPLAIN EXTENDED SELECT a, b from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`v1`.`a` AS `a`,`test`.`v1`.`b` AS `b` from `test`.`v1` EXPLAIN EXTENDED SELECT b, a from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`v1`.`b` AS `b`,`test`.`v1`.`a` AS `a` from `test`.`v1` SELECT * from test.v1; a b 1 100 2 200 3 300 SELECT * from test.v1 where a = 1; a b 1 100 SELECT * from test.v1 where b > 100; a b 2 200 3 300 SELECT a, b from test.v1; a b 1 100 2 200 3 300 SELECT b, a from test.v1; b a 100 1 200 2 300 3 # # DIGESTS SEEN ON TABLE # SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR FROM performance_schema.events_statements_summary_by_digest ORDER BY DIGEST_TEXT; SCHEMA_NAME DIGEST_TEXT COUNT_STAR test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` 1 test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` WHERE `a` = ? 1 test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` WHERE `b` > ? 1 test EXPLAIN EXTENDED SELECT `a` , `b` FROM `test` . `v1` 1 test EXPLAIN EXTENDED SELECT `b` , `a` FROM `test` . `v1` 1 test SELECT * FROM `test` . `v1` 1 test SELECT * FROM `test` . `v1` WHERE `a` = ? 1 test SELECT * FROM `test` . `v1` WHERE `b` > ? 1 test SELECT `a` , `b` FROM `test` . `v1` 1 test SELECT `b` , `a` FROM `test` . `v1` 1 test SHOW WARNINGS 5 test TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 DROP TABLE test.v1; CREATE VIEW test.v1 AS SELECT * FROM test.t1; EXPLAIN EXTENDED SELECT * from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` EXPLAIN EXTENDED SELECT * from test.v1 where a = 1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`a` = 1 EXPLAIN EXTENDED SELECT * from test.v1 where b > 100; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` > 100 EXPLAIN EXTENDED SELECT a, b from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` EXPLAIN EXTENDED SELECT b, a from test.v1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t1`.`a` AS `a` from `test`.`t1` SELECT * from test.v1; a b 1 100 2 200 3 300 SELECT * from test.v1 where a = 1; a b 1 100 SELECT * from test.v1 where b > 100; a b 2 200 3 300 SELECT a, b from test.v1; a b 1 100 2 200 3 300 SELECT b, a from test.v1; b a 100 1 200 2 300 3 # # DIGESTS SEEN ON VIEW # SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR FROM performance_schema.events_statements_summary_by_digest ORDER BY DIGEST_TEXT; SCHEMA_NAME DIGEST_TEXT COUNT_STAR test CREATE VIEW `test` . `v1` AS SELECT * FROM `test` . `t1` 1 test DROP TABLE `test` . `v1` 1 test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` 2 test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` WHERE `a` = ? 2 test EXPLAIN EXTENDED SELECT * FROM `test` . `v1` WHERE `b` > ? 2 test EXPLAIN EXTENDED SELECT `a` , `b` FROM `test` . `v1` 2 test EXPLAIN EXTENDED SELECT `b` , `a` FROM `test` . `v1` 2 test SELECT * FROM `test` . `v1` 2 test SELECT * FROM `test` . `v1` WHERE `a` = ? 2 test SELECT * FROM `test` . `v1` WHERE `b` > ? 2 test SELECT SCHEMA_NAME , `DIGEST_TEXT` , `COUNT_STAR` FROM `performance_schema` . `events_statements_summary_by_digest` ORDER BY `DIGEST_TEXT` 1 test SELECT `a` , `b` FROM `test` . `v1` 2 test SELECT `b` , `a` FROM `test` . `v1` 2 test SHOW WARNINGS 10 test TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 DROP VIEW test.v1; DROP TABLE test.t1; CREATE TABLE test.v1 (a int, b int); INSERT INTO test.v1 VALUES (1, 100), (2, 200), (3, 300); CREATE TABLE test.t1 (a int, b int); INSERT INTO test.t1 VALUES (1, 100), (2, 200), (3, 300); TRUNCATE TABLE performance_schema.events_statements_summary_by_digest; EXPLAIN SELECT * from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 EXPLAIN SELECT * from test.v1 where a = 1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 Using where EXPLAIN SELECT * from test.v1 where b > 100; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 Using where EXPLAIN SELECT a, b from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 EXPLAIN SELECT b, a from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE v1 ALL NULL NULL NULL NULL 3 SELECT * from test.v1; a b 1 100 2 200 3 300 SELECT * from test.v1 where a = 1; a b 1 100 SELECT * from test.v1 where b > 100; a b 2 200 3 300 SELECT a, b from test.v1; a b 1 100 2 200 3 300 SELECT b, a from test.v1; b a 100 1 200 2 300 3 # # DIGESTS SEEN ON TABLE # SELECT SCHEMA_NAME, DIGEST, DIGEST_TEXT, COUNT_STAR FROM performance_schema.events_statements_summary_by_digest ORDER BY DIGEST_TEXT; SCHEMA_NAME DIGEST DIGEST_TEXT COUNT_STAR test 23ae4223590751444a6b28bccc269f28 EXPLAIN SELECT * FROM `test` . `v1` 1 test 1cea0b70727d5ebcf423c7a9f5f11e6a EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 1 test db9391c55423cefa082674b57b142d3f EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 1 test 1a1d023e039f4b639d112aff4b1787fd EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 1 test 2f203319e6a88ebe4bd24c3e27007755 EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 1 test c63bf2a3ef2f495ade3c4a629742adb2 SELECT * FROM `test` . `v1` 1 test 9afbda4813b5a6ed6ecfd87a5e24bf70 SELECT * FROM `test` . `v1` WHERE `a` = ? 1 test b062dbe5e87b6251de0d8c66d39aa7ae SELECT * FROM `test` . `v1` WHERE `b` > ? 1 test 5ee734b34d15e310711c33db7f70897e SELECT `a` , `b` FROM `test` . `v1` 1 test fc86a08f68e26afb06d7f52081ea4bee SELECT `b` , `a` FROM `test` . `v1` 1 test 8cbee21c5c16d7162a0569e1f95221af TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 DROP TABLE test.v1; CREATE VIEW test.v1 AS SELECT * FROM test.t1; EXPLAIN SELECT * from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 EXPLAIN SELECT * from test.v1 where a = 1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where EXPLAIN SELECT * from test.v1 where b > 100; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using where EXPLAIN SELECT a, b from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 EXPLAIN SELECT b, a from test.v1; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 3 SELECT * from test.v1; a b 1 100 2 200 3 300 SELECT * from test.v1 where a = 1; a b 1 100 SELECT * from test.v1 where b > 100; a b 2 200 3 300 SELECT a, b from test.v1; a b 1 100 2 200 3 300 SELECT b, a from test.v1; b a 100 1 200 2 300 3 # # DIGESTS SEEN ON VIEW # SELECT SCHEMA_NAME, DIGEST, DIGEST_TEXT, COUNT_STAR FROM performance_schema.events_statements_summary_by_digest ORDER BY DIGEST_TEXT; SCHEMA_NAME DIGEST DIGEST_TEXT COUNT_STAR test fcffd7e32486e50d54cf33df37ee4844 CREATE VIEW `test` . `v1` AS SELECT * FROM `test` . `t1` 1 test c8ded4479c089b2439ac159e3758e991 DROP TABLE `test` . `v1` 1 test 23ae4223590751444a6b28bccc269f28 EXPLAIN SELECT * FROM `test` . `v1` 2 test 1cea0b70727d5ebcf423c7a9f5f11e6a EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 2 test db9391c55423cefa082674b57b142d3f EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 2 test 1a1d023e039f4b639d112aff4b1787fd EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 2 test 2f203319e6a88ebe4bd24c3e27007755 EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 2 test c63bf2a3ef2f495ade3c4a629742adb2 SELECT * FROM `test` . `v1` 2 test 9afbda4813b5a6ed6ecfd87a5e24bf70 SELECT * FROM `test` . `v1` WHERE `a` = ? 2 test b062dbe5e87b6251de0d8c66d39aa7ae SELECT * FROM `test` . `v1` WHERE `b` > ? 2 test 5cec4fed7d65064b4f6dfbcba4caf51b SELECT SCHEMA_NAME , `DIGEST` , `DIGEST_TEXT` , `COUNT_STAR` FROM `performance_schema` . `events_statements_summary_by_digest` ORDER BY `DIGEST_TEXT` 1 test 5ee734b34d15e310711c33db7f70897e SELECT `a` , `b` FROM `test` . `v1` 2 test fc86a08f68e26afb06d7f52081ea4bee SELECT `b` , `a` FROM `test` . `v1` 2 test 8cbee21c5c16d7162a0569e1f95221af TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 DROP VIEW test.v1; DROP TABLE test.t1;