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# frozen_string_literal: true
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class CleanUpNoteableIdForNotesOnCommits < ActiveRecord::Migration[5.0]
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
TEMP_INDEX_NAME = 'index_notes_on_commit_with_null_noteable_id'
disable_ddl_transaction!
def up
remove_concurrent_index_by_name(:notes, TEMP_INDEX_NAME)
add_concurrent_index(:notes, :id, where: "noteable_type = 'Commit' AND noteable_id IS NOT NULL", name: TEMP_INDEX_NAME)
# rubocop:disable Migration/UpdateLargeTable
update_column_in_batches(:notes, :noteable_id, nil, batch_size: 300) do |table, query|
query.where(
table[:noteable_type].eq('Commit').and(table[:noteable_id].not_eq(nil))
)
end
remove_concurrent_index_by_name(:notes, TEMP_INDEX_NAME)
end
def down
end
end
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