diff options
Diffstat (limited to 'mysql-test/t/alter_table.test')
| -rw-r--r-- | mysql-test/t/alter_table.test | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/mysql-test/t/alter_table.test b/mysql-test/t/alter_table.test index 78bbd23adf1..406854ebaed 100644 --- a/mysql-test/t/alter_table.test +++ b/mysql-test/t/alter_table.test @@ -372,6 +372,103 @@ alter table t1 add unique ( a(1) ); drop table t1; # +# Bug #24395: ALTER TABLE DISABLE KEYS doesn't work when modifying the table +# +# This problem happens if the data change is compatible. +# Changing to the same type is compatible for example. +# +--disable_warnings +drop table if exists t1; +--enable_warnings +create table t1 (a int, key(a)); +show indexes from t1; +--echo "this used not to disable the index" +alter table t1 modify a int, disable keys; +show indexes from t1; + +alter table t1 enable keys; +show indexes from t1; + +alter table t1 modify a bigint, disable keys; +show indexes from t1; + +alter table t1 enable keys; +show indexes from t1; + +alter table t1 add b char(10), disable keys; +show indexes from t1; + +alter table t1 add c decimal(10,2), enable keys; +show indexes from t1; + +--echo "this however did" +alter table t1 disable keys; +show indexes from t1; + +desc t1; + +alter table t1 add d decimal(15,5); +--echo "The key should still be disabled" +show indexes from t1; + +drop table t1; + +--echo "Now will test with one unique index" +create table t1(a int, b char(10), unique(a)); +show indexes from t1; +alter table t1 disable keys; +show indexes from t1; +alter table t1 enable keys; + +--echo "If no copy on noop change, this won't touch the data file" +--echo "Unique index, no change" +alter table t1 modify a int, disable keys; +show indexes from t1; + +--echo "Change the type implying data copy" +--echo "Unique index, no change" +alter table t1 modify a bigint, disable keys; +show indexes from t1; + +alter table t1 modify a bigint; +show indexes from t1; + +alter table t1 modify a int; +show indexes from t1; + +drop table t1; + +--echo "Now will test with one unique and one non-unique index" +create table t1(a int, b char(10), unique(a), key(b)); +show indexes from t1; +alter table t1 disable keys; +show indexes from t1; +alter table t1 enable keys; + + +--echo "If no copy on noop change, this won't touch the data file" +--echo "The non-unique index will be disabled" +alter table t1 modify a int, disable keys; +show indexes from t1; +alter table t1 enable keys; +show indexes from t1; + +--echo "Change the type implying data copy" +--echo "The non-unique index will be disabled" +alter table t1 modify a bigint, disable keys; +show indexes from t1; + +--echo "Change again the type, but leave the indexes as_is" +alter table t1 modify a int; +show indexes from t1; +--echo "Try the same. When data is no copied on similar tables, this is noop" +alter table t1 modify a int; +show indexes from t1; + +drop table t1; + + +# # Bug#11493 - Alter table rename to default database does not work without # db name qualifying # @@ -402,6 +499,24 @@ alter table test.t1 rename test.t1; use test; drop table t1; +# +# Bug#24219 - ALTER TABLE ... RENAME TO ... , DISABLE KEYS leads to crash +# +--disable_warnings +DROP TABLE IF EXISTS bug24219; +DROP TABLE IF EXISTS bug24219_2; +--enable_warnings + +CREATE TABLE bug24219 (a INT, INDEX(a)); + +SHOW INDEX FROM bug24219; + +ALTER TABLE bug24219 RENAME TO bug24219_2, DISABLE KEYS; + +SHOW INDEX FROM bug24219_2; + +DROP TABLE bug24219_2; + # End of 4.1 tests # |