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# frozen_string_literal: true
class BackfillNamespaceStatisticsWithWikiSize < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
DELAY_INTERVAL = 2.minutes.to_i
BATCH_SIZE = 500
MIGRATION = 'PopulateNamespaceStatistics'
disable_ddl_transaction!
def up
return unless Gitlab.ee?
groups = exec_query <<~SQL
SELECT group_wiki_repositories.group_id
FROM group_wiki_repositories
SQL
groups.rows.flatten.in_groups_of(BATCH_SIZE, false).each_with_index do |group_ids, index|
migrate_in(index * DELAY_INTERVAL, MIGRATION, [group_ids, [:wiki_size]])
end
end
def down
# No-op
end
end
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