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SQL, IB: option to drop historical rows on ALTER [closes #249]

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Eugene Kosov
2017-09-01 12:41:46 +03:00
committed by GitHub
parent a6aaa4fefe
commit c2a70c8050
19 changed files with 151 additions and 69 deletions
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2
scripts/mysql_system_tables.sql
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@ -23,7 +23,7 @@ set sql_mode='';
set @orig_storage_engine=@@storage_engine;
set storage_engine=myisam;
set versioning_ddl_survival=off;
set versioning_alter_history=keep;
set @have_innodb= (select count(engine) from information_schema.engines where engine='INNODB' and support != 'NO');
SET @innodb_or_myisam=IF(@have_innodb <> 0, 'InnoDB', 'MyISAM');