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SQL: prohibit column conversion to system fields for non-empty table [fixes #310]

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Eugene Kosov
2017-11-20 18:34:25 +03:00
committed by Aleksey Midenkov
parent 00b98264a8
commit 91ba4f04be
6 changed files with 58 additions and 3 deletions
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15
mysql-test/suite/versioning/t/alter.test
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@@ -282,6 +282,21 @@ select * from t for system_time all;
alter table t add column b int;
select * from t for system_time all;
create or replace table non_empty (
a int,
sys_trx_start bigint(20) unsigned,
sys_trx_end bigint(20) unsigned
) engine innodb;
insert into non_empty values (1, 100, 200);
--error ER_VERS_GENERATED_ALWAYS_NOT_EMPTY
alter table non_empty
change column sys_trx_start sys_trx_start bigint(20) unsigned generated always as row start;
--error ER_VERS_GENERATED_ALWAYS_NOT_EMPTY
alter table non_empty
change column sys_trx_end sys_trx_end bigint(20) unsigned generated always as row end;
drop table non_empty;
call verify_vtq;
drop table t;