canvas-lms/db/migrate/20230725001714_remove_old_s...

38 lines
1.3 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2023 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
class RemoveOldSubmissionNeedsGradingIndex < ActiveRecord::Migration[7.0]
tag :postdeploy
disable_ddl_transaction!
def change
# Submission.needs_grading was updated and a new index was created,
# but the old index was never removed and is no longer used
remove_index :submissions, :assignment_id, name: "index_submissions_on_assignment_id", where: <<~SQL.squish, algorithm: :concurrently, if_exists: true
submission_type IS NOT NULL
AND (workflow_state = 'pending_review'
OR (workflow_state = 'submitted'
AND (score IS NULL OR NOT grade_matches_current_submission)
)
)
SQL
end
end