mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
622 lines
26 KiB
Plaintext
622 lines
26 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(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
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Warnings:
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Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
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insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
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insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
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insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
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insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
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insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
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insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
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insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
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insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
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insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
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insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
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select get_lock("hello",1);
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get_lock("hello",1)
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1
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begin;
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update t1 set eta=1+get_lock("hello",1)*0 where tipo=11;
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begin;
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update t1 set eta=2 where tipo=22;
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select release_lock("hello");
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release_lock("hello")
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1
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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2 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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1 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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commit;
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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2 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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commit;
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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2 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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1 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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2 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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1 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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2 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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1 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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drop table t1;
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create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
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Warnings:
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Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
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insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
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insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
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insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
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insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
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insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
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insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
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insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
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insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
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insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
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insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
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select get_lock("hello",10);
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get_lock("hello",10)
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0
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begin;
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update t1 set eta=1+get_lock("hello",10)*0 where tipo=1;
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begin;
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update t1 set tipo=1 where tipo=2;
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select release_lock("hello");
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release_lock("hello")
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0
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 1 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 1 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 1 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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1 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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1 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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1 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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1 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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commit;
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 1 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 1 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 1 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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commit;
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 1 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 1 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 1 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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1 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 1 ddddddddddddddddddddddddddddddddddddddddddd
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1 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 1 fffffffffffffffffffffffffffffffffffffffffff
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1 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 1 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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1 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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1 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 1 ddddddddddddddddddddddddddddddddddddddddddd
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1 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 1 fffffffffffffffffffffffffffffffffffffffffff
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1 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 1 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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1 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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drop table t1;
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create table t1 (a int not null, b int not null) engine=innodb;
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insert into t1 values (1,1),(2,1),(3,1),(4,1);
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select get_lock("hello2",1000);
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get_lock("hello2",1000)
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1
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begin;
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update t1 set b=10+get_lock(concat("hello",a),1000)*0 where
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a=2;
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insert into t1 values (1,1);
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select release_lock("hello2");
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release_lock("hello2")
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1
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select * from t1;
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a b
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1 1
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2 1
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3 1
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4 1
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1 1
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select * from t1;
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a b
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1 1
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2 10
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3 1
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4 1
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1 1
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commit;
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drop table t1;
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create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
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Warnings:
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Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
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insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
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insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
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insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
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insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
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insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
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insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
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insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
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insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
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insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
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insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
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select get_lock("hello",10);
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get_lock("hello",10)
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1
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begin;
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select * from t1 where tipo=2 FOR UPDATE;
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begin;
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select release_lock("hello");
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release_lock("hello")
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1
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update t1 set tipo=1+get_lock("hello",10)*0 where tipo=2;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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eta tipo c
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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commit;
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commit;
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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select * from t1;
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eta tipo c
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7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
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8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
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10 1 ccccccccccccccccccccccccccccccccccccccccccc
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20 2 ddddddddddddddddddddddddddddddddddddddddddd
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30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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40 2 fffffffffffffffffffffffffffffffffffffffffff
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50 1 ggggggggggggggggggggggggggggggggggggggggggg
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60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
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80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
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90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
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drop table t1;
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create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
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Warnings:
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Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
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insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
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insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
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insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
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insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
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insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
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insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
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insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
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insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
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insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
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insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
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insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
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select get_lock("hello",10);
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get_lock("hello",10)
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1
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begin;
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select * from t1 where tipo=2 FOR UPDATE;
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begin;
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select release_lock("hello");
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release_lock("hello")
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|
1
|
|
update t1 set tipo=11+get_lock("hello",10)*0 where tipo=22;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
eta tipo c
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
commit;
|
|
commit;
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
drop table t1;
|
|
create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
|
|
Warnings:
|
|
Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
|
|
insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
|
|
insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
|
|
insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
|
|
insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
|
|
insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
|
|
insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
|
|
insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
|
|
insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
|
|
insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
|
|
insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
|
|
insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
|
|
select get_lock("hello",10);
|
|
get_lock("hello",10)
|
|
1
|
|
begin;
|
|
select * from t1 where tipo=2 FOR UPDATE;
|
|
begin;
|
|
select release_lock("hello");
|
|
release_lock("hello")
|
|
1
|
|
select * from t1 where tipo=1 FOR UPDATE;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
eta tipo c
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
commit;
|
|
commit;
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
drop table t1;
|
|
create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
|
|
Warnings:
|
|
Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
|
|
insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
|
|
insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
|
|
insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
|
|
insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
|
|
insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
|
|
insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
|
|
insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
|
|
insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
|
|
insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
|
|
insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
|
|
insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
|
|
select get_lock("hello",10);
|
|
get_lock("hello",10)
|
|
1
|
|
begin;
|
|
delete from t1 where tipo=2;
|
|
begin;
|
|
select release_lock("hello");
|
|
release_lock("hello")
|
|
1
|
|
update t1 set tipo=1+get_lock("hello",10)*0 where tipo=2;
|
|
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
commit;
|
|
commit;
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
drop table t1;
|
|
create table t1(eta int(11) not null, tipo int(11), c varchar(255)) ENGINE=innodb;
|
|
Warnings:
|
|
Warning 1287 'TYPE=storage_engine' is deprecated; use 'ENGINE=storage_engine' instead
|
|
insert into t1 values (7,7, "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
|
|
insert into t1 values (8,8, "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
|
|
insert into t1 values (10,1,"ccccccccccccccccccccccccccccccccccccccccccc");
|
|
insert into t1 values (20,2,"ddddddddddddddddddddddddddddddddddddddddddd");
|
|
insert into t1 values (30,1,"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
|
|
insert into t1 values (40,2,"fffffffffffffffffffffffffffffffffffffffffff");
|
|
insert into t1 values (50,1,"ggggggggggggggggggggggggggggggggggggggggggg");
|
|
insert into t1 values (60,2,"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh");
|
|
insert into t1 values (70,1,"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii");
|
|
insert into t1 values (80,22,"jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj");
|
|
insert into t1 values (90,11,"kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk");
|
|
select get_lock("hello",10);
|
|
get_lock("hello",10)
|
|
1
|
|
begin;
|
|
delete from t1 where tipo=2;
|
|
begin;
|
|
select release_lock("hello");
|
|
release_lock("hello")
|
|
1
|
|
update t1 set tipo=1+get_lock("hello",10)*0 where tipo=22;
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
20 2 ddddddddddddddddddddddddddddddddddddddddddd
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
40 2 fffffffffffffffffffffffffffffffffffffffffff
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
60 2 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 1 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 22 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
commit;
|
|
commit;
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 1 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
select * from t1;
|
|
eta tipo c
|
|
7 7 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|
8 8 bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
|
|
10 1 ccccccccccccccccccccccccccccccccccccccccccc
|
|
30 1 eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
|
|
50 1 ggggggggggggggggggggggggggggggggggggggggggg
|
|
70 1 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
|
|
80 1 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
|
|
90 11 kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
|
|
drop table t1;
|