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MDEV-30539 EXPLAIN EXTENDED: no message with queries for DML statements
EXPLAIN EXTENDED for an UPDATE/DELETE/INSERT/REPLACE statement did not produce the warning containing the text representation of the query obtained after the optimization phase. Such warning was produced for SELECT statements, but not for DML statements. The patch fixes this defect of EXPLAIN EXTENDED for DML statements.
This commit is contained in:
Igor Babaev
@ -17,6 +17,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED UPDATE t1 SET a = 10 WHERE a < 10;
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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 update `test`.`t1` set `test`.`t1`.`a` = 10 where `test`.`t1`.`a` < 10
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -60,6 +62,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE a < 10;
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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 delete from `test`.`t1` where `test`.`t1`.`a` < 10
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -103,6 +107,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 USING t1 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 delete from `test`.`t1` using `test`.`t1` where `test`.`t1`.`a` = 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -150,6 +156,8 @@ EXPLAIN EXTENDED UPDATE t1, t2 SET t1.a = 10 WHERE t1.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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1 SIMPLE t2 ALL NULL NULL NULL NULL 3 100.00
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Warnings:
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Note 1003 update `test`.`t1` join `test`.`t2` set `test`.`t1`.`a` = 10 where `test`.`t1`.`a` = 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -200,6 +208,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t11 ALL NULL NULL NULL NULL 3 100.00 Using where
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 100.00
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2 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` `t11` join (/* select#2 */ select `test`.`t2`.`b` AS `b` from `test`.`t2`) `t12` set `test`.`t11`.`a` = 10 where `test`.`t11`.`a` = 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -248,6 +258,8 @@ EXPLAIN EXTENDED UPDATE t1 SET a = 10 WHERE 1 IN (SELECT 1 FROM t2 WHERE
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
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2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` set `test`.`t1`.`a` = 10 where <in_optimizer>(1,<exists>(/* select#2 */ select 1 from `test`.`t2` where `test`.`t2`.`b` < 3 and 1))
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -300,6 +312,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
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Note 1003 /* select#1 */ update `test`.`t1` set `test`.`t1`.`a` = 10 where <in_optimizer>(`test`.`t1`.`a`,<exists>(/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` where `test`.`t1`.`a` < 3 and <cache>(`test`.`t1`.`a`) = `test`.`t2`.`b`))
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -353,6 +366,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00
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1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00
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2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1003 update `test`.`t1` semi join (`test`.`t2`) join `test`.`t2` set `test`.`t1`.`a` = 10 where `test`.`t2`.`b` < 3
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -405,6 +420,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t11 ALL NULL NULL NULL NULL 3 100.00
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 100.00
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2 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` `t11` join (/* select#2 */ select `test`.`t2`.`b` AS `b` from `test`.`t2`) `t12` set `test`.`t11`.`a` = `test`.`t11`.`a` + 10
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -457,6 +474,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY <derived2> system NULL NULL NULL NULL 1 100.00
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1 PRIMARY t11 ALL NULL NULL NULL NULL 3 100.00
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2 DERIVED NULL NULL NULL NULL NULL NULL NULL NULL No tables used
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` `t11` set `test`.`t11`.`a` = `test`.`t11`.`a` + 10
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -511,6 +530,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t11 ALL NULL NULL NULL NULL 3 100.00 Using where
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1 PRIMARY <derived2> ALL NULL NULL NULL NULL 3 100.00
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2 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` `t11` join (/* select#2 */ select `test`.`t2`.`b` AS `b` from `test`.`t2`) `t12` set `test`.`t11`.`a` = 10 where `test`.`t11`.`a` > 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -555,6 +576,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE a > 1 LIMIT 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 delete from `test`.`t1` where `test`.`t1`.`a` > 1 limit 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -598,6 +621,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE 0;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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Warnings:
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Note 1003 delete from `test`.`t1` where 0
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -638,6 +663,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 USING t1 WHERE 0;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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Warnings:
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Note 1003 delete from `test`.`t1` using `test`.`t1` where 0
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 2
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@ -678,6 +705,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE a = 3;
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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 range a a 5 NULL 1 100.00 Using where
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Warnings:
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`a` = 3
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 5
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@ -719,6 +748,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE a < 3;
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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 range a a 5 NULL 1 100.00 Using where
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Warnings:
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`a` < 3
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 5
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@ -758,6 +789,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
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Warnings:
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`a` > 0 order by `test`.`t1`.`a`
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 3
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@ -797,6 +830,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
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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 range PRIMARY PRIMARY 4 NULL 3 100.00 Using where
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Warnings:
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`a` > 0 order by `test`.`t1`.`a`
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 3
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@ -840,6 +875,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 WHERE (@a:= a) ORDER BY a LIMIT 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 index NULL PRIMARY 4 NULL 1 100.00 Using where
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Warnings:
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Note 1003 delete from `test`.`t1` where @a:=`test`.`t1`.`a` order by `test`.`t1`.`a` limit 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 3
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@ -884,6 +921,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1 ORDER BY a ASC, b ASC LIMIT 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 10 100.00 Using filesort
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Warnings:
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Note 1003 delete from `test`.`t1` order by `test`.`t1`.`a`,`test`.`t1`.`b` limit 1
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 7
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@ -941,6 +980,8 @@ 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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1 SIMPLE t2 ref PRIMARY PRIMARY 4 test.t1.a1 1 100.00
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1 SIMPLE t3 eq_ref PRIMARY PRIMARY 8 test.t2.b2,test.t1.b1 1 100.00
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Warnings:
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Note 1003 delete from `test`.`t1`,`test`.`t2`,`test`.`t3` using `test`.`t1` join `test`.`t2` join `test`.`t3` where `test`.`t2`.`a2` = `test`.`t1`.`a1` and `test`.`t3`.`a3` = `test`.`t2`.`b2` and `test`.`t3`.`b3` = `test`.`t1`.`b1`
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 13
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@ -993,6 +1034,8 @@ EXPLAIN EXTENDED UPDATE t1 SET a = 10 WHERE a IN (SELECT a FROM t2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 3 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ update `test`.`t1` set `test`.`t1`.`a` = 10 where <in_optimizer>(`test`.`t1`.`a`,<exists>(/* select#2 */ select `test`.`t2`.`a` from `test`.`t2` where <cache>(`test`.`t1`.`a`) = `test`.`t2`.`a`))
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -1043,6 +1086,8 @@ EXPLAIN EXTENDED DELETE FROM t1 WHERE a1 IN (SELECT a2 FROM t2 WHERE a2 > 2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 5 100.00 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ delete from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a1`,<exists>(/* select#2 */ select `test`.`t2`.`a2` from `test`.`t2` where `test`.`t2`.`a2` > 2 and <cache>(`test`.`t1`.`a1`) = `test`.`t2`.`a2`))
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -1088,6 +1133,8 @@ EXPLAIN EXTENDED DELETE FROM t1 WHERE a1 IN (SELECT a2 FROM t2 WHERE a2 > 2);
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 PRIMARY t1 ALL NULL NULL NULL NULL 5 100.00 Using where
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2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where
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Warnings:
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Note 1003 /* select#1 */ delete from `test`.`t1` where <in_optimizer>(`test`.`t1`.`a1`,<exists>(/* select#2 */ select `test`.`t2`.`a2` from `test`.`t2` where `test`.`t2`.`a2` > 2 and <cache>(`test`.`t1`.`a1`) = `test`.`t2`.`a2`))
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# Status of EXPLAIN EXTENDED query
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Variable_name Value
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Handler_read_key 4
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@ -1132,6 +1179,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED UPDATE t1 SET i = 10;
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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 5 100.00
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Warnings:
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Note 1003 update `test`.`t1` set `test`.`t1`.`i` = 10
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
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Handler_read_key 3
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@ -1175,6 +1224,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t1;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE NULL NULL NULL NULL NULL NULL 5 NULL Deleting all rows
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Warnings:
|
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Note 1003 delete from `test`.`t1`
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
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Handler_read_key 3
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@ -1221,6 +1272,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
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id select_type table type possible_keys key key_len ref rows filtered Extra
|
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1 SIMPLE t2 index NULL a 15 NULL 5 100.00 Using where
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Warnings:
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Note 1003 delete from `test`.`t2` where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
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Handler_read_key 8
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@ -1267,6 +1320,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED INSERT INTO t2 SELECT * FROM t1;
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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 insert into `test`.`t2` select `test`.`t1`.`i` AS `i` from `test`.`t1`
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
|
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Handler_read_key 4
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@ -1311,6 +1366,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED REPLACE INTO t2 SELECT * FROM t1;
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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 replace into `test`.`t2` select `test`.`t1`.`i` AS `i` from `test`.`t1`
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
|
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Handler_read_key 4
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@ -1351,6 +1408,8 @@ FLUSH TABLES;
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EXPLAIN EXTENDED INSERT INTO t1 SET i = 10;
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id select_type table type possible_keys key key_len ref rows filtered Extra
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1 INSERT t1 ALL NULL NULL NULL NULL NULL 100.00 NULL
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Warnings:
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Note 1003 insert into `test`.`t1`(i) values (10)
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
|
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Handler_read_key 2
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@ -1374,6 +1433,8 @@ FLUSH TABLES;
|
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EXPLAIN EXTENDED REPLACE INTO t1 SET i = 10;
|
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id select_type table type possible_keys key key_len ref rows filtered Extra
|
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1 INSERT t1 ALL NULL NULL NULL NULL NULL 100.00 NULL
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Warnings:
|
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Note 1003 replace into `test`.`t1`(i) values (10)
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# Status of EXPLAIN EXTENDED query
|
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Variable_name Value
|
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Handler_read_key 2
|
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@ -1402,6 +1463,8 @@ FLUSH TABLES;
|
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EXPLAIN EXTENDED DELETE FROM t1 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
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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 range PRIMARY PRIMARY 4 NULL 5 100.00 Using where
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Warnings:
|
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`i` > 10 and `test`.`t1`.`i` <= 18 order by `test`.`t1`.`i` limit 5
|
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# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
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Handler_read_key 4
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@ -1447,6 +1510,8 @@ FLUSH TABLES;
|
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EXPLAIN EXTENDED DELETE FROM t1 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
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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 26 100.00 Using where; Using filesort
|
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Warnings:
|
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Note 1003 delete from `test`.`t1` where `test`.`t1`.`i` > 10 and `test`.`t1`.`i` <= 18 order by `test`.`t1`.`i` limit 5
|
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# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
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@ -1500,6 +1565,8 @@ FLUSH TABLES;
|
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EXPLAIN EXTENDED DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
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id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
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Warnings:
|
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Note 1003 delete from `test`.`t2` where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
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# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -1554,6 +1621,8 @@ FLUSH TABLES;
|
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EXPLAIN EXTENDED DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index NULL a 15 NULL 5 100.00 Using where
|
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Warnings:
|
||||
Note 1003 delete from `test`.`t2` where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -1603,6 +1672,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -1657,6 +1728,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -1712,6 +1785,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index_merge key1,key2 key1,key2 5,5 NULL 7 100.00 Using sort_union(key1,key2); Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` where `test`.`t2`.`key1` < 13 or `test`.`t2`.`key2` < 14 order by `test`.`t2`.`key1`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -1765,6 +1840,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 5 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` where `test`.`t2`.`i` > 10 and `test`.`t2`.`i` <= 18 order by `test`.`t2`.`i` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -1812,6 +1889,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 ORDER BY a, b DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using filesort
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` order by `test`.`t2`.`a`,`test`.`t2`.`b` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -1866,6 +1945,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t2 ORDER BY a DESC, b DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index NULL a 6 NULL 5 100.00
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t2` order by `test`.`t2`.`a` desc,`test`.`t2`.`b` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -1915,6 +1996,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 5 100.00 Using where; Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`a` = 10 where `test`.`t2`.`i` > 10 and `test`.`t2`.`i` <= 18 order by `test`.`t2`.`i` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -1963,6 +2046,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`a` = 10 where `test`.`t2`.`i` > 10 and `test`.`t2`.`i` <= 18 order by `test`.`t2`.`i` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -2017,6 +2102,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`d` = 10 where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -2072,6 +2159,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index NULL a 15 NULL 5 100.00 Using where; Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`d` = 10 where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -2122,6 +2211,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`d` = 10 where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -2176,6 +2267,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`d` = 10 where `test`.`t2`.`b` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`c` limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 8
|
||||
@ -2231,6 +2324,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET i = 123 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index_merge key1,key2 key1,key2 5,5 NULL 7 100.00 Using sort_union(key1,key2); Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`i` = 123 where `test`.`t2`.`key1` < 13 or `test`.`t2`.`key2` < 14 order by `test`.`t2`.`key1`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2284,6 +2379,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET a = 10 WHERE i > 10 AND i <= 18 ORDER BY i DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 range PRIMARY PRIMARY 4 NULL 5 100.00 Using where; Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`a` = 10 where `test`.`t2`.`i` > 10 and `test`.`t2`.`i` <= 18 order by `test`.`t2`.`i` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -2332,6 +2429,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET c = 10 ORDER BY a, b DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 26 100.00 Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`c` = 10 order by `test`.`t2`.`a`,`test`.`t2`.`b` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2387,6 +2486,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t2 SET c = 10 ORDER BY a DESC, b DESC LIMIT 5;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 index NULL a 6 NULL 5 100.00 Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t2` set `test`.`t2`.`c` = 10 order by `test`.`t2`.`a` desc,`test`.`t2`.`b` desc limit 5
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2439,6 +2540,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t1 SET c2 = 0 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set `test`.`t1`.`c2` = 0 where `test`.`t1`.`c1_idx` = 'y' order by `test`.`t1`.`pk` desc limit 2
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2485,6 +2588,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM t1 WHERE c1_idx = 'y' ORDER BY pk DESC LIMIT 2;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range c1_idx c1_idx 2 NULL 2 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t1` where `test`.`t1`.`c1_idx` = 'y' order by `test`.`t1`.`pk` desc limit 2
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2534,6 +2639,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t1 SET a=a+10 WHERE a > 34;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 2 100.00 Using where; Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set `test`.`t1`.`a` = `test`.`t1`.`a` + 10 where `test`.`t1`.`a` > 34
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 3
|
||||
@ -2581,6 +2688,8 @@ EXPLAIN EXTENDED UPDATE t1 LEFT JOIN t2 ON t1.c1 = t2.c1 SET t2.c2 = 10;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 system NULL NULL NULL NULL 0 0.00 Const row not found
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set NULL = 10
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 7
|
||||
@ -2624,6 +2733,8 @@ EXPLAIN EXTENDED UPDATE t1 LEFT JOIN t2 ON t1.c1 = t2.c1 SET t2.c2 = 10 W
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 system NULL NULL NULL NULL 0 0.00 Const row not found
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set NULL = 10 where `test`.`t1`.`c3` = 10
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 7
|
||||
@ -2676,6 +2787,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
2 DEPENDENT SUBQUERY t2 ALL IDX NULL NULL NULL 2 100.00 Using where
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t1.f1' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1003 /* select#1 */ update `test`.`t1` set `test`.`t1`.`f2` = (/* select#2 */ select max(`test`.`t2`.`f4`) from `test`.`t2` where `test`.`t2`.`f3` = `test`.`t1`.`f1`)
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 7
|
||||
@ -2747,6 +2859,8 @@ EXPLAIN EXTENDED UPDATE v1 SET a = 1 WHERE a > 0;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t11 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t12 ALL NULL NULL NULL NULL 2 100.00
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` `t11` join `test`.`t1` `t12` set `test`.`t11`.`a` = 1 where `test`.`t11`.`a` > 0
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 2
|
||||
@ -2792,6 +2906,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00
|
||||
1 SIMPLE t11 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||||
1 SIMPLE t12 ALL NULL NULL NULL NULL 2 100.00
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` join `test`.`t1` `t11` join `test`.`t1` `t12` set `test`.`t11`.`a` = 1 where `test`.`t11`.`a` = `test`.`t1`.`a`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 2
|
||||
@ -2841,6 +2957,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED DELETE FROM v1 WHERE a < 4;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 3 100.00 Using where
|
||||
Warnings:
|
||||
Note 1003 /* select#1 */ delete from `test`.`t1` where `test`.`t1`.`a` < 4
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 3
|
||||
@ -2892,6 +3010,8 @@ EXPLAIN EXTENDED DELETE v1 FROM t2, v1 WHERE t2.x = v1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 4 100.00 Using where
|
||||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.x 1 100.00
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t1` using `test`.`t2` join `test`.`t1` where `test`.`t1`.`a` = `test`.`t2`.`x`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2943,6 +3063,8 @@ EXPLAIN EXTENDED DELETE v1 FROM t2, v1 WHERE t2.x = v1.a;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 4 100.00 Using where
|
||||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.x 1 100.00
|
||||
Warnings:
|
||||
Note 1003 delete from `test`.`t1` using `test`.`t2` join `test`.`t1` where `test`.`t1`.`a` = `test`.`t2`.`x`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 6
|
||||
@ -2987,6 +3109,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED INSERT INTO v1 VALUES (10);
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 INSERT t1 ALL NULL NULL NULL NULL NULL 100.00 NULL
|
||||
Warnings:
|
||||
Note 1003 insert into `test`.`t1`(x) values (10)
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 2
|
||||
@ -3027,6 +3151,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED INSERT INTO v1 SELECT * FROM t1;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 Const row not found
|
||||
Warnings:
|
||||
Note 1003 insert into `test`.`t2`(x) /* select#1 */ select NULL AS `a` from `test`.`t1`
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -3084,6 +3210,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
2 DEPENDENT SUBQUERY <derived3> index_subquery key0 key0 5 func 2 100.00
|
||||
3 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00 Using filesort
|
||||
Warnings:
|
||||
Note 1003 /* select#1 */ update `test`.`t1` set `test`.`t1`.`a` = 10 where <in_optimizer>(`test`.`t1`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in (temporary) on key0)))
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -3140,6 +3268,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t2 ALL NULL NULL NULL NULL 3 100.00
|
||||
2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 3 100.00
|
||||
3 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00 Using filesort
|
||||
Warnings:
|
||||
Note 1003 /* select#1 */ update `test`.`t1` semi join ((/* select#3 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`b` limit 2,2) `x`) join `test`.`t2` set `test`.`t1`.`a` = 10 where 1
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -3198,6 +3328,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
3 MATERIALIZED <derived4> ALL NULL NULL NULL NULL 3 100.00
|
||||
4 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00 Using filesort
|
||||
2 DERIVED t2 ALL NULL NULL NULL NULL 3 100.00
|
||||
Warnings:
|
||||
Note 1003 /* select#1 */ update `test`.`t1` semi join ((/* select#4 */ select `test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`b` limit 2,2) `x`) join (/* select#2 */ select `test`.`t2`.`b` AS `b` from `test`.`t2`) `y` set `test`.`t1`.`a` = 10 where 1
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
@ -3248,6 +3380,8 @@ JOIN t1 AS a12 ON a12.c1 = a11.c1
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t3 ALL NULL NULL NULL NULL 0 100.00
|
||||
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||||
Warnings:
|
||||
Note 1003 /* select#1 */ update `test`.`t3` set `test`.`t3`.`c3` = (/* select#2 */ select count(NULL) from `test`.`t1` `a11` straight_join `test`.`t2` `a21` join `test`.`t1` `a12` where 0)
|
||||
DROP TABLE t1, t2, t3;
|
||||
#73
|
||||
CREATE TABLE t1 (id INT);
|
||||
@ -3276,6 +3410,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t1 SET a=a+1 WHERE a>10;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 1 100.00 Using where; Using buffer
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set `test`.`t1`.`a` = `test`.`t1`.`a` + 1 where `test`.`t1`.`a` > 10
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 3
|
||||
@ -3315,6 +3451,8 @@ FLUSH TABLES;
|
||||
EXPLAIN EXTENDED UPDATE t1 SET a=a+1 WHERE a>10 ORDER BY a+20;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 range PRIMARY PRIMARY 4 NULL 1 100.00 Using where; Using filesort
|
||||
Warnings:
|
||||
Note 1003 update `test`.`t1` set `test`.`t1`.`a` = `test`.`t1`.`a` + 1 where `test`.`t1`.`a` > 10 order by `test`.`t1`.`a` + 20
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 3
|
||||
@ -3341,6 +3479,61 @@ Handler_read_key 4
|
||||
Sort_range 1
|
||||
|
||||
DROP TABLE t1;
|
||||
#75
|
||||
CREATE TABLE t1 (id INT PRIMARY KEY, i INT);
|
||||
#
|
||||
# query: INSERT INTO t1 VALUES (3,10), (7,11), (3,11) ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
|
||||
# select:
|
||||
#
|
||||
EXPLAIN INSERT INTO t1 VALUES (3,10), (7,11), (3,11) ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 INSERT t1 ALL NULL NULL NULL NULL NULL NULL
|
||||
FLUSH STATUS;
|
||||
FLUSH TABLES;
|
||||
EXPLAIN EXTENDED INSERT INTO t1 VALUES (3,10), (7,11), (3,11) ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 INSERT t1 ALL NULL NULL NULL NULL NULL 100.00 NULL
|
||||
Warnings:
|
||||
Note 1003 insert into `test`.`t1` values (3,10),(7,11),(3,11) on duplicate key update `test`.`t1`.`id` = last_insert_id(`test`.`t1`.`id`)
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
# Status of testing query execution:
|
||||
Variable_name Value
|
||||
Handler_read_key 4
|
||||
Handler_read_rnd 1
|
||||
Handler_write 3
|
||||
|
||||
DROP TABLE t1;
|
||||
#76
|
||||
CREATE TABLE t1 (id INT PRIMARY KEY, i INT);
|
||||
CREATE TABLE t2 (a INT, b INT);
|
||||
INSERT INTO t2 VALUES (1,10), (3,10), (7,11), (3,11);
|
||||
#
|
||||
# query: INSERT INTO t1 SELECT * FROM t2 ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);
|
||||
# select:
|
||||
#
|
||||
EXPLAIN INSERT INTO t1 SELECT * FROM t2 ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 4
|
||||
FLUSH STATUS;
|
||||
FLUSH TABLES;
|
||||
EXPLAIN EXTENDED INSERT INTO t1 SELECT * FROM t2 ON DUPLICATE KEY UPDATE id=LAST_INSERT_ID(id);;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t2 ALL NULL NULL NULL NULL 4 100.00
|
||||
Warnings:
|
||||
Note 1003 insert into `test`.`t1` select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` on duplicate key update `test`.`t1`.`id` = last_insert_id(`test`.`t1`.`id`)
|
||||
# Status of EXPLAIN EXTENDED query
|
||||
Variable_name Value
|
||||
Handler_read_key 7
|
||||
# Status of testing query execution:
|
||||
Variable_name Value
|
||||
Handler_read_key 7
|
||||
Handler_read_rnd 1
|
||||
Handler_read_rnd_next 5
|
||||
Handler_write 4
|
||||
|
||||
DROP TABLE t1,t2;
|
||||
#
|
||||
# Bug #12949629: CLIENT LOSES CONNECTION AFTER EXECUTING A PROCEDURE WITH
|
||||
# EXPLAIN UPDATE/DEL/INS
|
||||
|
||||
Reference in New Issue
Block a user