1 files changed, 0 insertions, 56 deletions
diff --git a/db/migrate/20180201145907_migrate_remaining_issues_closed_at.rb b/db/migrate/20180201145907_migrate_remaining_issues_closed_at.rb
deleted file mode 100644
index d398909f25b..00000000000
--- a/db/migrate/20180201145907_migrate_remaining_issues_closed_at.rb
+++ /dev/null
@@ -1,56 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class MigrateRemainingIssuesClosedAt < ActiveRecord::Migration[4.2]
-  include Gitlab::Database::MigrationHelpers
-
-  # Set this constant to true if this migration requires downtime.
-  DOWNTIME = false
-
-  disable_ddl_transaction!
-
-  class Issue < ActiveRecord::Base
-    self.table_name = 'issues'
-    include EachBatch
-  end
-
-  def up
-    Gitlab::BackgroundMigration.steal('CopyColumn')
-    Gitlab::BackgroundMigration.steal('CleanupConcurrentTypeChange')
-
-    if migrate_column_type?
-      if closed_at_for_type_change_exists?
-        migrate_remaining_rows
-      else
-        # Due to some EE merge problems some environments may not have the
-        # "closed_at_for_type_change" column. If this is the case we have no
-        # other option than to migrate the data _right now_.
-        # rubocop:disable Migration/UpdateLargeTable
-        change_column_type_concurrently(:issues, :closed_at, :datetime_with_timezone)
-        cleanup_concurrent_column_type_change(:issues, :closed_at)
-      end
-    end
-  end
-
-  def down
-    # Previous migrations already revert the changes made here.
-  end
-
-  def migrate_remaining_rows
-    Issue.where('closed_at_for_type_change IS NULL AND closed_at IS NOT NULL').each_batch do |batch|
-      batch.update_all('closed_at_for_type_change = closed_at')
-    end
-
-    cleanup_concurrent_column_type_change(:issues, :closed_at)
-  end
-
-  def migrate_column_type?
-    # Some environments may have already executed the previous version of this
-    # migration, thus we don't need to migrate those environments again.
-    column_for('issues', 'closed_at').type == :datetime # rubocop:disable Migration/Datetime
-  end
-
-  def closed_at_for_type_change_exists?
-    columns('issues').any? { |col| col.name == 'closed_at_for_type_change' }
-  end
-end