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# frozen_string_literal: true
# See https://docs.gitlab.com/ee/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class SwapSentNotificationsIdColumns < Gitlab::Database::Migration[2.1]
include Gitlab::Database::MigrationHelpers::ConvertToBigint
disable_ddl_transaction!
TABLE_NAME = :sent_notifications
COLUMN_NAME = :id_convert_to_bigint
INDEX_NAME = :index_sent_notifications_on_id_convert_to_bigint
def up
return unless should_run?
swap
end
def down
return unless should_run?
swap
end
def swap
add_concurrent_index TABLE_NAME, COLUMN_NAME, unique: true, name: INDEX_NAME
with_lock_retries(raise_on_exhaustion: true) do
execute "LOCK TABLE #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
# Swap Columns
temp_name = quote_column_name(:id_tmp)
id_name = quote_column_name(:id)
id_convert_to_bigint_name = quote_column_name(COLUMN_NAME)
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{id_name} TO #{temp_name}"
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{id_convert_to_bigint_name} TO #{id_name}"
execute "ALTER TABLE #{TABLE_NAME} RENAME COLUMN #{temp_name} TO #{id_convert_to_bigint_name}"
# Reset trigger
function_name = Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME, connection: connection)
.name(:id, :id_convert_to_bigint)
execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL"
execute "ALTER SEQUENCE #{TABLE_NAME}_id_seq OWNED BY #{TABLE_NAME}.id"
change_column_default TABLE_NAME, :id, -> { "nextval('#{TABLE_NAME}_id_seq'::regclass)" }
change_column_default TABLE_NAME, :id_convert_to_bigint, 0
execute "ALTER TABLE #{TABLE_NAME} DROP CONSTRAINT #{TABLE_NAME}_pkey CASCADE"
rename_index TABLE_NAME, INDEX_NAME, "#{TABLE_NAME}_pkey"
execute "ALTER TABLE #{TABLE_NAME} ADD CONSTRAINT #{TABLE_NAME}_pkey PRIMARY KEY USING INDEX #{TABLE_NAME}_pkey"
end
end
def should_run?
com_or_dev_or_test_but_not_jh?
end
end
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