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65 lines
1.4 KiB
Text
65 lines
1.4 KiB
Text
use test;
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drop table if exists t1;
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create table t1 (id int primary key, value int, value2 int,
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value3 int, index(value,value2)) engine=innodb;
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insert into t1 values
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(10,10,10,10),(11,11,11,11),(12,12,12,12),(13,13,13,13),(14,14,14,14),
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(15,15,15,15),(16,16,16,16),(17,17,17,17),(18,18,18,18),(19,19,19,19),
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(20,20,20,20);
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connect conn1, localhost, root,,;
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connect conn2, localhost, root,,;
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connect conn3, localhost, root,,;
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connection conn1;
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use test;
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start transaction with consistent snapshot;
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connection conn2;
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use test;
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CREATE PROCEDURE update_t1()
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BEGIN
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DECLARE i INT DEFAULT 1;
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while (i <= 5000) DO
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update test.t1 set value2=value2+1, value3=value3+1 where id=12;
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SET i = i + 1;
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END WHILE;
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END|
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set autocommit=0;
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CALL update_t1();
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select * from t1;
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id value value2 value3
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10 10 10 10
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11 11 11 11
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12 12 5012 5012
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13 13 13 13
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14 14 14 14
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15 15 15 15
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16 16 16 16
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17 17 17 17
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18 18 18 18
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19 19 19 19
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20 20 20 20
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set autocommit=1;
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select * from t1;
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id value value2 value3
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10 10 10 10
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11 11 11 11
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12 12 5012 5012
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13 13 13 13
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14 14 14 14
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15 15 15 15
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16 16 16 16
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17 17 17 17
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18 18 18 18
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19 19 19 19
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20 20 20 20
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connection conn1;
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select * from t1 force index(value) where value=12;
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connection conn3;
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kill query @id;
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connection conn1;
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ERROR 70100: Query execution was interrupted
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connection default;
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disconnect conn1;
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disconnect conn2;
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disconnect conn3;
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drop procedure if exists update_t1;
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drop table if exists t1;
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