diff options
Diffstat (limited to 'db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb')
| -rw-r--r-- | db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb b/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb new file mode 100644 index 00000000000..baf2e70b127 --- /dev/null +++ b/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb @@ -0,0 +1,15 @@ +class AddUniqueIndexToListsLabelId < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + disable_ddl_transaction! + + def up + add_concurrent_index :lists, [:board_id, :label_id], unique: true + end + + def down + remove_index :lists, column: [:board_id, :label_id] if index_exists?(:lists, [:board_id, :label_id], unique: true) + end +end |