# frozen_string_literal: true

class AddTemporaryIndexToIssueMetrics < Gitlab::Database::Migration[1.0]
  disable_ddl_transaction!

  INDEX_NAME = 'index_issue_metrics_first_mentioned_in_commit'

  def up
    condition = Gitlab::BackgroundMigration::FixFirstMentionedInCommitAt::TmpIssueMetrics
      .first_mentioned_in_commit_at_condition
    add_concurrent_index :issue_metrics, :issue_id, where: condition, name: INDEX_NAME
  end

  def down
    remove_concurrent_index_by_name :issue_metrics, name: INDEX_NAME
  end
end