45 lines
1.1 KiB
Ruby
45 lines
1.1 KiB
Ruby
|
# 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 CleanupOptimisticLockingNulls < ActiveRecord::Migration[5.2]
|
||
|
|
include Gitlab::Database::MigrationHelpers
|
||
|
|
|
||
|
|
DOWNTIME = false
|
||
|
|
|
||
|
|
disable_ddl_transaction!
|
||
|
|
|
||
|
|
TABLES = %w(epics merge_requests issues).freeze
|
||
|
|
BATCH_SIZE = 10_000
|
||
|
|
|
||
|
|
def declare_class(table)
|
||
|
|
Class.new(ActiveRecord::Base) do
|
||
|
|
include EachBatch
|
||
|
|
|
||
|
|
self.table_name = table
|
||
|
|
self.inheritance_column = :_type_disabled # Disable STI
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
def up
|
||
|
|
TABLES.each do |table|
|
||
|
|
add_concurrent_index table.to_sym, :lock_version, where: "lock_version IS NULL"
|
||
|
|
|
||
|
|
queue_background_migration_jobs_by_range_at_intervals(
|
||
|
|
declare_class(table).where(lock_version: nil),
|
||
|
|
'CleanupOptimisticLockingNulls',
|
||
|
|
2.minutes,
|
||
|
|
batch_size: BATCH_SIZE,
|
||
|
|
other_arguments: [table]
|
||
|
|
)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
def down
|
||
|
|
TABLES.each do |table|
|
||
|
|
remove_concurrent_index table.to_sym, :lock_version, where: "lock_version IS NULL"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|