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-rw-r--r--db/migrate/20190826090628_remove_redundant_deployments_index.rb18
1 files changed, 18 insertions, 0 deletions
diff --git a/db/migrate/20190826090628_remove_redundant_deployments_index.rb b/db/migrate/20190826090628_remove_redundant_deployments_index.rb
new file mode 100644
index 00000000000..6b009c17d64
--- /dev/null
+++ b/db/migrate/20190826090628_remove_redundant_deployments_index.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class RemoveRedundantDeploymentsIndex < ActiveRecord::Migration[5.2]
+ include Gitlab::Database::MigrationHelpers
+
+ # Set this constant to true if this migration requires downtime.
+ DOWNTIME = false
+
+ disable_ddl_transaction!
+
+ def up
+ remove_concurrent_index :deployments, :cluster_id
+ end
+
+ def down
+ add_concurrent_index :deployments, :cluster_id
+ end
+end