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BUG#27216817: INNODB: FAILING ASSERTION: PREBUILT->TABLE->N_MYSQL_HANDLES_OPENED == 1

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disable online alter add primary key for innodb, if the
table is opened/locked more than once in the current connection

(see assert in ha_innobase::add_index())
This commit is contained in:
Sergei Golubchik
2018-04-19 22:36:46 +02:00
parent f1258e7cd2
commit 149c993b2c
6 changed files with 76 additions and 0 deletions
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24
mysql-test/suite/innodb/r/innodb_bug27216817.result Normal file
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create table t1 (a int not null, b int not null) engine=innodb;
insert t1 values (1,2),(3,4);
lock table t1 write, t1 tr read;
flush status;
alter table t1 add primary key (b);
show status like 'Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 3
unlock tables;
alter table t1 drop primary key;
lock table t1 write;
flush status;
alter table t1 add primary key (b);
show status like 'Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 0
unlock tables;
alter table t1 drop primary key;
flush status;
alter table t1 add primary key (b);
show status like 'Handler_read_rnd_next';
Variable_name Value
Handler_read_rnd_next 0
drop table t1;