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MDEV-4456 Reverse discovery of ARCHIVE table on SELECT after disappearance of ARZ file

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Implement discovery of table non-existence, and related changes:

1. Split GTS_FORCE_DISCOVERY (that was meaning two different things in
two different functions) into GTS_FORCE_DISCOVERY and GTS_USE_DISCOVERY.
2. Move GTS_FORCE_DISCOVERY implementation into open_table_def().
3. In recover_from_failed_open() clear old errors *before* discovery,
not after successful discovery. The final error should come
from the discovery.
4. On forced discovery delete table .frm first. Discovery will write
a new one, if desired.
5. If the frm file exists, but not the table in the engine, force
rediscovery if the engine supports it.
This commit is contained in:
Sergei Golubchik 2013-06-16 22:01:07 +02:00
commit d7e0c3cc73
5 changed files with 51 additions and 11 deletions
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6
mysql-test/suite/archive/discover.result
View file

@ -124,3 +124,9 @@ drop table `a/../`;
create database test1;
create table test1.t1 (i int) engine=archive;
drop database test1;
create table t1 (a int) engine=archive;
select * from t1;
a
flush tables;
select * from t1;
ERROR 42S02: Table 'test.t1' doesn't exist

11
mysql-test/suite/archive/discover.test
View file

@ -107,3 +107,14 @@ create database test1;
create table test1.t1 (i int) engine=archive;
drop database test1;
#
# MDEV-4456 Reverse discovery of ARCHIVE table on SELECT after disappearance of ARZ file
#
create table t1 (a int) engine=archive;
select * from t1;
flush tables;
remove_file $mysqld_datadir/test/t1.ARZ;
--error ER_NO_SUCH_TABLE
select * from t1;
--list_files $mysqld_datadir/test