mirror of
https://github.com/MariaDB/server.git
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266 lines
10 KiB
Text
266 lines
10 KiB
Text
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 eae5046a9d01df1163966c0bfeaebe2f EXPLAIN SELECT * FROM `test` . `v1` 1
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test f1894d73004034fde99d25abd8416ffa EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 1
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test b1ddddcfd89c9c5e1326e0c520d03d87 EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 1
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test 4dd37d9265144f5232d4d4f52ba2191c EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 1
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test 38faf7d85ad1e905a0da57f4806cea9d EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 1
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test 927ed567fda67d2c992421529099860a SELECT * FROM `test` . `v1` 1
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test ca236012aba4eb3ffdaf69abec7e9366 SELECT * FROM `test` . `v1` WHERE `a` = ? 1
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test 525ea4996ecb5a00ee0e61f331a08305 SELECT * FROM `test` . `v1` WHERE `b` > ? 1
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test 499aba5b6baca6e30c5d13efc9e616ba SELECT `a` , `b` FROM `test` . `v1` 1
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test 3b6fbf35b223db3b2651f2accf6424d2 SELECT `b` , `a` FROM `test` . `v1` 1
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test c552920371a4c5745ba299a89382e036 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 93b87bd4ebcbb5ae9bf2dba94c509fb9 CREATE VIEW `test` . `v1` AS SELECT * FROM `test` . `t1` 1
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test 57cb0a39892c46938cd83aafa3908811 DROP TABLE `test` . `v1` 1
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test eae5046a9d01df1163966c0bfeaebe2f EXPLAIN SELECT * FROM `test` . `v1` 2
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test f1894d73004034fde99d25abd8416ffa EXPLAIN SELECT * FROM `test` . `v1` WHERE `a` = ? 2
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test b1ddddcfd89c9c5e1326e0c520d03d87 EXPLAIN SELECT * FROM `test` . `v1` WHERE `b` > ? 2
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test 4dd37d9265144f5232d4d4f52ba2191c EXPLAIN SELECT `a` , `b` FROM `test` . `v1` 2
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test 38faf7d85ad1e905a0da57f4806cea9d EXPLAIN SELECT `b` , `a` FROM `test` . `v1` 2
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test 927ed567fda67d2c992421529099860a SELECT * FROM `test` . `v1` 2
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test ca236012aba4eb3ffdaf69abec7e9366 SELECT * FROM `test` . `v1` WHERE `a` = ? 2
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test 525ea4996ecb5a00ee0e61f331a08305 SELECT * FROM `test` . `v1` WHERE `b` > ? 2
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test 3bc8d25c6199783091cf96f3908727ca 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 499aba5b6baca6e30c5d13efc9e616ba SELECT `a` , `b` FROM `test` . `v1` 2
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test 3b6fbf35b223db3b2651f2accf6424d2 SELECT `b` , `a` FROM `test` . `v1` 2
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test c552920371a4c5745ba299a89382e036 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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