diff options
Diffstat (limited to 'db/migrate/20170914135630_add_index_for_recent_push_events.rb')
-rw-r--r-- | db/migrate/20170914135630_add_index_for_recent_push_events.rb | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/db/migrate/20170914135630_add_index_for_recent_push_events.rb b/db/migrate/20170914135630_add_index_for_recent_push_events.rb new file mode 100644 index 00000000000..99f593b0465 --- /dev/null +++ b/db/migrate/20170914135630_add_index_for_recent_push_events.rb @@ -0,0 +1,40 @@ +# See http://doc.gitlab.com/ce/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class AddIndexForRecentPushEvents < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + disable_ddl_transaction! + + def up + add_concurrent_index_if_not_present( + :merge_requests, + [:source_project_id, :source_branch] + ) + + remove_concurrent_index_if_present(:merge_requests, :source_project_id) + end + + def down + add_concurrent_index_if_not_present(:merge_requests, :source_project_id) + + remove_concurrent_index_if_present( + :merge_requests, + [:source_project_id, :source_branch] + ) + end + + def add_concurrent_index_if_not_present(table, columns) + return if index_exists?(table, columns) + + add_concurrent_index(table, columns) + end + + def remove_concurrent_index_if_present(table, columns) + return unless index_exists?(table, columns) + + remove_concurrent_index(table, columns) + end +end |