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# frozen_string_literal: true
class UpdateVulnerabilitySeverityColumn < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
BATCH_SIZE = 1_000
INTERVAL = 2.minutes
def up
# create temporary index for undefined vulnerabilities
add_concurrent_index(:vulnerabilities, :id, where: 'severity = 0', name: 'undefined_vulnerability')
return unless Gitlab.ee?
migration = Gitlab::BackgroundMigration::RemoveUndefinedVulnerabilitySeverityLevel
migration_name = migration.to_s.demodulize
relation = migration::Vulnerability.undefined_severity
queue_background_migration_jobs_by_range_at_intervals(relation,
migration_name,
INTERVAL,
batch_size: BATCH_SIZE)
end
def down
# no-op
# This migration can not be reversed because we can not know which records had undefined severity
end
end
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