gitlab-org--gitlab-foss/db/post_migrate/20200227140242_update_occurrence_severity_column.rb

34 lines
1.3 KiB
Ruby

# frozen_string_literal: true
class UpdateOccurrenceSeverityColumn < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
BATCH_SIZE = 1_000
INTERVAL = 5.minutes
# 23_044 records to be updated on GitLab.com,
def up
# create temporary index for undefined vulnerabilities
add_concurrent_index(:vulnerability_occurrences, :id, where: 'severity = 0', name: 'undefined_vulnerabilities')
return unless Gitlab.ee?
migration = Gitlab::BackgroundMigration::RemoveUndefinedOccurrenceSeverityLevel
migration_name = migration.to_s.demodulize
relation = migration::Occurrence.undefined_severity
queue_background_migration_jobs_by_range_at_intervals(relation,
migration_name,
INTERVAL,
batch_size: BATCH_SIZE)
end
def down
# no-op
# temporary index is to be dropped in a different migration in an upcoming release
remove_concurrent_index(:vulnerability_occurrences, :id, where: 'severity = 0', name: 'undefined_vulnerabilities')
# This migration can not be reversed because we can not know which records had undefined severity
end
end