db/migrate/20201104142036_add_index_to_merge_request_metrics_target_project_id.rb


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# frozen_string_literal: true

class AddIndexToMergeRequestMetricsTargetProjectId < ActiveRecord::Migration[6.0]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false
  INDEX_NAME = 'index_mr_metrics_on_target_project_id_merged_at_time_to_merge'

  disable_ddl_transaction!

  def up
    add_concurrent_index :merge_request_metrics, [:target_project_id, :merged_at, :created_at], where: 'merged_at > created_at', name: INDEX_NAME
  end

  def down
    remove_concurrent_index_by_name(:merge_request_metrics, INDEX_NAME)
  end
end