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Fixed LP bug #930814.

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This bug was introduced into mariadb 5.2 in the December 2010 with
the patch that added a new engine property: the ability to support
virtual columns.    
As a result of this bug the information from frm files for tables 
that contained virtual columns did not appear in the information schema
tables.
This commit is contained in:
Igor Babaev 2012-03-09 15:37:16 -08:00
commit 8c08349882
3 changed files with 29 additions and 2 deletions
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13
mysql-test/suite/vcol/r/vcol_misc.result
View file

@ -133,3 +133,16 @@ t1 CREATE TABLE `t1` (
`v` char(32) CHARACTER SET ucs2 AS (a) VIRTUAL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1 (a int, b int);
CREATE TABLE t2 (a int, b int as (a+1) VIRTUAL);
SELECT table_schema, table_name, column_name, column_type, extra
FROM information_schema.columns WHERE table_name = 't1';
table_schema table_name column_name column_type extra
test t1 a int(11)
test t1 b int(11)
SELECT table_schema, table_name, column_name, column_type, extra
FROM information_schema.columns WHERE table_name = 't2';
table_schema table_name column_name column_type extra
test t2 a int(11)
test t2 b int(11) VIRTUAL
DROP TABLE t1,t2;

14
mysql-test/suite/vcol/t/vcol_misc.test
View file

@ -140,3 +140,17 @@ CREATE TABLE t1 (a char(32), v char(32) CHARACTER SET ucs2 AS (a) VIRTUAL);
SHOW CREATE TABLE t1;
DROP TABLE t1;
#
# Bug#930814: no info in information schema for tables with virtual columns
#
CREATE TABLE t1 (a int, b int);
CREATE TABLE t2 (a int, b int as (a+1) VIRTUAL);
SELECT table_schema, table_name, column_name, column_type, extra
FROM information_schema.columns WHERE table_name = 't1';
SELECT table_schema, table_name, column_name, column_type, extra
FROM information_schema.columns WHERE table_name = 't2';
DROP TABLE t1,t2;

4
sql/table.cc
View file

@ -2339,8 +2339,8 @@ partititon_err:
/* Check virtual columns against table's storage engine. */
if (share->vfields &&
!(outparam->file &&
(outparam->file->ha_table_flags() & HA_CAN_VIRTUAL_COLUMNS)))
(outparam->file &&
!(outparam->file->ha_table_flags() & HA_CAN_VIRTUAL_COLUMNS)))
{
my_error(ER_UNSUPPORTED_ENGINE_FOR_VIRTUAL_COLUMNS, MYF(0),
plugin_name(share->db_plugin)->str);