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