44 lines
1.7 KiB
Ruby
44 lines
1.7 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
class ReplaceUniqueIndexOnCycleAnalyticsStages < ActiveRecord::Migration[6.0]
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
DOWNTIME = false
|
|
OLD_INDEX_NAME = 'index_analytics_ca_group_stages_on_group_id_and_name'
|
|
NEW_INDEX_NAME = 'index_group_stages_on_group_id_group_value_stream_id_and_name'
|
|
|
|
disable_ddl_transaction!
|
|
|
|
def up
|
|
add_concurrent_index(:analytics_cycle_analytics_group_stages,
|
|
[:group_id, :group_value_stream_id, :name],
|
|
unique: true,
|
|
name: NEW_INDEX_NAME)
|
|
|
|
remove_concurrent_index_by_name :analytics_cycle_analytics_group_stages, OLD_INDEX_NAME
|
|
end
|
|
|
|
def down
|
|
# Removing duplicated records (group_id, name) that would prevent re-creating the old index.
|
|
execute <<-SQL
|
|
DELETE FROM analytics_cycle_analytics_group_stages
|
|
USING (
|
|
SELECT group_id, name, MIN(id) as min_id
|
|
FROM analytics_cycle_analytics_group_stages
|
|
GROUP BY group_id, name
|
|
HAVING COUNT(id) > 1
|
|
) as analytics_cycle_analytics_group_stages_name_duplicates
|
|
WHERE analytics_cycle_analytics_group_stages_name_duplicates.group_id = analytics_cycle_analytics_group_stages.group_id
|
|
AND analytics_cycle_analytics_group_stages_name_duplicates.name = analytics_cycle_analytics_group_stages.name
|
|
AND analytics_cycle_analytics_group_stages_name_duplicates.min_id <> analytics_cycle_analytics_group_stages.id
|
|
SQL
|
|
|
|
add_concurrent_index(:analytics_cycle_analytics_group_stages,
|
|
[:group_id, :name],
|
|
unique: true,
|
|
name: OLD_INDEX_NAME)
|
|
|
|
remove_concurrent_index_by_name :analytics_cycle_analytics_group_stages, NEW_INDEX_NAME
|
|
end
|
|
end
|