By daffie on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
9.1.x
Introduced in version: 
9.1.0
Issue links: 
https://www.drupal.org/node/2664322
Description: 

Installing the tables key_value and key_value_expire with the method KernelTestBase::installSchema() is deprecated. The two tables are now lazy loaded and therefor will be installed automatically when used. The following code is no longer necessary and can be removed:

$this->installSchema('system', ['key_value', 'key_value_expire']);
or
$this->installSchema('system', ['key_value']);
or
$this->installSchema('system', ['key_value_expire']);

When used in combination with the creation for the sequences table, only the creation of the sequences table should be left.

Impacts: 
Module developers
Site templates, recipes and distribution developers