1 files changed, 26 insertions, 0 deletions
diff --git a/db/migrate/20200526120714_change_partial_indexes_on_services.rb b/db/migrate/20200526120714_change_partial_indexes_on_services.rb
new file mode 100644
index 00000000000..a4d58cda105
--- /dev/null
+++ b/db/migrate/20200526120714_change_partial_indexes_on_services.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class ChangePartialIndexesOnServices < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :services, [:type, :instance], unique: true, where: 'instance = true', name: 'index_services_on_type_and_instance_partial'
+    remove_concurrent_index_by_name :services, 'index_services_on_type_and_instance'
+
+    add_concurrent_index :services, [:type, :template], unique: true, where: 'template = true', name: 'index_services_on_type_and_template_partial'
+    remove_concurrent_index_by_name :services, 'index_services_on_type_and_template'
+  end
+
+  def down
+    add_concurrent_index :services, [:type, :instance], unique: true, where: 'instance IS TRUE', name: 'index_services_on_type_and_instance'
+    remove_concurrent_index_by_name :services, 'index_services_on_type_and_instance_partial'
+
+    add_concurrent_index :services, [:type, :template], unique: true, where: 'template IS TRUE', name: 'index_services_on_type_and_template'
+    remove_concurrent_index_by_name :services, 'index_services_on_type_and_template_partial'
+  end
+end