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MDEV-18791 Wrong error upon creating Aria table with long index on BLOB

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If we have long unique key for aria engine return too long key error, because
Aria does not support key on virtual generated column.
This commit is contained in:
Sachin Setiya 2019-10-08 17:35:09 +05:30 • committed by Sachin
commit 5a6023cf6f
3 changed files with 13 additions and 0 deletions
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2
mysql-test/main/long_unique_bugs.result
View file

@ -265,3 +265,5 @@ ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
disconnect con1;
connection default;
DROP TABLE t1, t2;
CREATE TABLE t1 (a TEXT, UNIQUE(a)) ENGINE=Aria;
ERROR 42000: Specified key was too long; max key length is 1000 bytes

6
mysql-test/main/long_unique_bugs.test
View file

@ -317,3 +317,9 @@ INSERT IGNORE INTO t1 VALUES (4, 1)/*4*/;
--disconnect con1
--connection default
DROP TABLE t1, t2;
#
# MDEV-18791 Wrong error upon creating Aria table with long index on BLOB
#
--error ER_TOO_LONG_KEY
CREATE TABLE t1 (a TEXT, UNIQUE(a)) ENGINE=Aria;

5
storage/maria/ha_maria.cc
View file

@ -554,6 +554,11 @@ static int table2maria(TABLE *table_arg, data_file_type row_type,
if (!table_arg->field[field->field_index]->stored_in_db())
{
my_free(*recinfo_out);
if (table_arg->s->long_unique_table)
{
my_error(ER_TOO_LONG_KEY, MYF(0), table_arg->file->max_key_length());
DBUG_RETURN(HA_ERR_INDEX_COL_TOO_LONG);
}
my_error(ER_KEY_BASED_ON_GENERATED_VIRTUAL_COLUMN, MYF(0));
DBUG_RETURN(HA_ERR_UNSUPPORTED);
}