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-rw-r--r--db/migrate/20170504182103_add_index_project_group_links_group_id.rb19
1 files changed, 19 insertions, 0 deletions
diff --git a/db/migrate/20170504182103_add_index_project_group_links_group_id.rb b/db/migrate/20170504182103_add_index_project_group_links_group_id.rb
new file mode 100644
index 00000000000..62bf641daa6
--- /dev/null
+++ b/db/migrate/20170504182103_add_index_project_group_links_group_id.rb
@@ -0,0 +1,19 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddIndexProjectGroupLinksGroupId < ActiveRecord::Migration
+ include Gitlab::Database::MigrationHelpers
+
+ # Set this constant to true if this migration requires downtime.
+ DOWNTIME = false
+
+ disable_ddl_transaction!
+
+ def up
+ add_concurrent_index :project_group_links, :group_id
+ end
+
+ def down
+ remove_concurrent_index :project_group_links, :group_id
+ end
+end