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# frozen_string_literal: true
class SwapEventsTargetIdToBigintForGitlabDotCom < Gitlab::Database::Migration[2.1]
include Gitlab::Database::MigrationHelpers::ConvertToBigint
disable_ddl_transaction!
TABLE_NAME = 'events'
def up
return unless should_run?
swap
end
def down
return unless should_run?
swap
end
def swap
# This will replace the existing index_events_on_target_type_and_target_id_and_fingerprint
add_concurrent_index TABLE_NAME, [:target_type, :target_id_convert_to_bigint, :fingerprint],
name: :index_events_on_target_type_and_target_id_bigint_fingerprint,
unique: true
with_lock_retries(raise_on_exhaustion: true) do
execute "LOCK TABLE #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN target_id TO target_id_tmp"
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN target_id_convert_to_bigint TO target_id"
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN target_id_tmp TO target_id_convert_to_bigint"
function_name = Gitlab::Database::UnidirectionalCopyTrigger
.on_table(TABLE_NAME, connection: connection)
.name(:target_id, :target_id_convert_to_bigint)
execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL"
execute 'DROP INDEX IF EXISTS index_events_on_target_type_and_target_id_and_fingerprint'
rename_index TABLE_NAME, 'index_events_on_target_type_and_target_id_bigint_fingerprint',
'index_events_on_target_type_and_target_id_and_fingerprint'
end
end
def should_run?
com_or_dev_or_test_but_not_jh?
end
end
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