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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);
ANALYZE TABLE v1, t1;
Table Op Msg_type Msg_text
test.v1 analyze status OK
test.t1 analyze status OK
TRUNCATE TABLE performance_schema.events_statements_summary_by_digest;
EXPLAIN SELECT * from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE v1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
EXPLAIN SELECT * from test.v1 where a = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE v1 NULL ALL NULL NULL NULL NULL 3 33.33 Using where
EXPLAIN SELECT * from test.v1 where b > 100;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE v1 NULL ALL NULL NULL NULL NULL 3 33.33 Using where
EXPLAIN SELECT a, b from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE v1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
EXPLAIN SELECT b, a from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE v1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
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, QUERY_SAMPLE_TEXT
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
SCHEMA_NAME DIGEST DIGEST_TEXT COUNT_STAR QUERY_SAMPLE_TEXT
test 44defeaac80e345658f6eaf6a9cd5dfff624c4b84fc7c066d82eb24dc89e1dbe EXPLAIN SELECT * FROM `test` . `v1` 1 EXPLAIN SELECT * from test.v1
test 7cd6b2a1f8762c488dd5841fc26fe59cce592c59b278df1ce76ae274abf10f4e EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 1 EXPLAIN SELECT * from test.v1 where a = 1
test 97cd4b3d096f36adbf995fd64e2d4bf2a8975910cc1eaf5f7a8e876fb28be512 EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 1 EXPLAIN SELECT * from test.v1 where b > 100
test a3c66e6014d41d5428f4198e43087098355a61eeb039a595683f85a4cf8aaf42 EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 1 EXPLAIN SELECT a, b from test.v1
test 3c694431b761a9fbfc0f4f78fb031957b2ae9aec6fb1f4dc137451aceb1b6316 EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 1 EXPLAIN SELECT b, a from test.v1
test 8e0aabd64f6361bc3dbc913dcf873a5249d72a07e2b91a7bc8f043ba60436a31 SELECT * FROM `test` . `v1` 1 SELECT * from test.v1
test 56336f6ce1f4057068812b9f97001aa394357558f3b94089281b4e5af5049cee SELECT * FROM `test` . `v1` WHERE `a` = ? 1 SELECT * from test.v1 where a = 1
test 631f182bba654d327aff6824fa46dcfd79b1f85a9ab9c12c1489411a6901a5b2 SELECT * FROM `test` . `v1` WHERE `b` > ? 1 SELECT * from test.v1 where b > 100
test 75f26f170466d57f74d63f1548edcbd9c27a02bf7373f86ea7602535a38a5470 SELECT `a` , `b` FROM `test` . `v1` 1 SELECT a, b from test.v1
test 1e4bf55234aec9d998764bfdd1cba42bf2e06a67d681b326f065bba4192a360f SELECT `b` , `a` FROM `test` . `v1` 1 SELECT b, a from test.v1
test 5e18b503343466373cc0ce1922b04a77902f0cce5386ce599cb95b682d29415e TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 TRUNCATE TABLE performance_schema.events_statements_summary_by_digest
DROP TABLE test.v1;
CREATE VIEW test.v1 AS SELECT * FROM test.t1;
EXPLAIN SELECT * from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
EXPLAIN SELECT * from test.v1 where a = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 33.33 Using where
EXPLAIN SELECT * from test.v1 where b > 100;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 33.33 Using where
EXPLAIN SELECT a, b from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
EXPLAIN SELECT b, a from test.v1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL
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, QUERY_SAMPLE_TEXT
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT;
SCHEMA_NAME DIGEST DIGEST_TEXT COUNT_STAR QUERY_SAMPLE_TEXT
test 5339225c923312b39bdd29d591b93e3fe8b609b2164553c62ca138cc93450f9e CREATE VIEW `test` . `v1` AS SELECT * FROM `test` . `t1` 1 CREATE VIEW test.v1 AS SELECT * FROM test.t1
test 130d4736dce856bc0f41b91ab6385c98539537fe1dbc6cf5b3b1640947633c0c DROP TABLE `test` . `v1` 1 DROP TABLE test.v1
test 44defeaac80e345658f6eaf6a9cd5dfff624c4b84fc7c066d82eb24dc89e1dbe EXPLAIN SELECT * FROM `test` . `v1` 2 EXPLAIN SELECT * from test.v1
test 7cd6b2a1f8762c488dd5841fc26fe59cce592c59b278df1ce76ae274abf10f4e EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 2 EXPLAIN SELECT * from test.v1 where a = 1
test 97cd4b3d096f36adbf995fd64e2d4bf2a8975910cc1eaf5f7a8e876fb28be512 EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 2 EXPLAIN SELECT * from test.v1 where b > 100
test a3c66e6014d41d5428f4198e43087098355a61eeb039a595683f85a4cf8aaf42 EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 2 EXPLAIN SELECT a, b from test.v1
test 3c694431b761a9fbfc0f4f78fb031957b2ae9aec6fb1f4dc137451aceb1b6316 EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 2 EXPLAIN SELECT b, a from test.v1
test 8e0aabd64f6361bc3dbc913dcf873a5249d72a07e2b91a7bc8f043ba60436a31 SELECT * FROM `test` . `v1` 2 SELECT * from test.v1
test 56336f6ce1f4057068812b9f97001aa394357558f3b94089281b4e5af5049cee SELECT * FROM `test` . `v1` WHERE `a` = ? 2 SELECT * from test.v1 where a = 1
test 631f182bba654d327aff6824fa46dcfd79b1f85a9ab9c12c1489411a6901a5b2 SELECT * FROM `test` . `v1` WHERE `b` > ? 2 SELECT * from test.v1 where b > 100
test 75f26f170466d57f74d63f1548edcbd9c27a02bf7373f86ea7602535a38a5470 SELECT `a` , `b` FROM `test` . `v1` 2 SELECT a, b from test.v1
test 1e4bf55234aec9d998764bfdd1cba42bf2e06a67d681b326f065bba4192a360f SELECT `b` , `a` FROM `test` . `v1` 2 SELECT b, a from test.v1
test 04541f02221581a3ca19b1c4798def8a117e0a1ccaa6f8e93a8753c003dbada1 SELECT SCHEMA_NAME , `DIGEST` , `DIGEST_TEXT` , `COUNT_STAR` , `QUERY_SAMPLE_TEXT` FROM `performance_schema` . `events_statements_summary_by_digest` ORDER BY `DIGEST_TEXT` 1 SELECT SCHEMA_NAME, DIGEST, DIGEST_TEXT, COUNT_STAR, QUERY_SAMPLE_TEXT
FROM performance_schema.events_statements_summary_by_digest
ORDER BY DIGEST_TEXT
test 5e18b503343466373cc0ce1922b04a77902f0cce5386ce599cb95b682d29415e TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1 TRUNCATE TABLE performance_schema.events_statements_summary_by_digest
DROP VIEW test.v1;
DROP TABLE test.t1;
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