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# frozen_string_literal: true
class SetProperLockVersionIndices < ActiveRecord::Migration[6.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
remove_concurrent_index :epics, :lock_version, where: "lock_version IS NULL"
remove_concurrent_index :merge_requests, :lock_version, where: "lock_version IS NULL"
remove_concurrent_index :issues, :lock_version, where: "lock_version IS NULL"
add_concurrent_index :epics, :id, where: "lock_version IS NULL", name: 'index_epics_on_id'
add_concurrent_index :merge_requests, :id, where: "lock_version IS NULL", name: 'index_merge_requests_on_id'
add_concurrent_index :issues, :id, where: "lock_version IS NULL", name: 'index_issues_on_id'
end
def down
add_concurrent_index :epics, :lock_version, where: "lock_version IS NULL"
add_concurrent_index :merge_requests, :lock_version, where: "lock_version IS NULL"
add_concurrent_index :issues, :lock_version, where: "lock_version IS NULL"
remove_concurrent_index_by_name :epics, name: 'index_epics_on_id'
remove_concurrent_index_by_name :merge_requests, name: 'index_merge_requests_on_id'
remove_concurrent_index_by_name :issues, name: 'index_issues_on_id'
end
end
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