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89 lines
1.6 KiB
Plaintext
89 lines
1.6 KiB
Plaintext
drop table if exists t1;
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Warnings:
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Note 1051 Unknown table 't1'
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create table t1 (id int, index (id)) engine = pbxt;
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insert into t1 values (1), (2), (3), (4), (5);
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begin;
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select * from t1 where id < 5 for update;
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id
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1
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2
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3
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4
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update t1 set id = 8 where id = 5;
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update t1 set id = 8 where id = 4;
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show processlist;
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Id User Host db Command Time State Info
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x root x test Query x NULL show processlist
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x root x test Query x Searching rows for update update t1 set id = 8 where id = 4
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commit;
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select * from t1;
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id
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1
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2
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3
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8
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8
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drop table if exists t1;
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create table t1 (id int) engine = pbxt;
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insert into t1 values (1), (2), (3), (4), (5);
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begin;
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select * from t1 where id > 10 for update;
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id
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update t1 set id = 8;
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commit;
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select * from t1;
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id
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8
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8
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8
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8
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8
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drop table if exists t1;
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create table t1 (id int, index (id)) engine = pbxt;
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insert into t1 values (1), (2), (3), (4), (5);
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begin;
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select * from t1 where id = 5 for update;
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id
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5
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update t1 set id = 8 where id < 4;
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update t1 set id = 8 where id = 5;
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show processlist;
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Id User Host db Command Time State Info
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x root x test Query x NULL show processlist
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x root x test Query x Searching rows for update update t1 set id = 8 where id = 5
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commit;
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select * from t1;
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id
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4
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8
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8
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8
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8
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drop table if exists t1;
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create table t1 (id int, index (id)) engine = pbxt;
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insert into t1 values (1), (2), (3), (4), (5);
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select * from t1 for update;
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id
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1
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2
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3
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4
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5
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update t1 set id = 8;
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drop table if exists t1;
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create table t1 (id int, index (id)) engine = pbxt;
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insert into t1 values (1), (2), (3), (4), (5);
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create procedure p1 ()
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begin
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select * from t1 for update;
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end|
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call p1 ();
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id
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1
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2
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3
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4
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5
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update t1 set id = 8;
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