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Expanded class hierarchy of Select in Drupal 9

class \Drupal\Core\Database\Query\Query implements PlaceholderInterface
- class \Drupal\Core\Database\Query\Delete implements ConditionInterface uses QueryConditionTrait
- class \Drupal\Core\Database\Query\Insert implements \Drupal\Core\Database\Query\Countable uses InsertTrait
- class \Drupal\Core\Database\Query\Merge implements ConditionInterface uses QueryConditionTrait
- class \Drupal\Core\Database\Query\Select implements SelectInterface uses QueryConditionTrait
  - class \Drupal\corefake\Driver\Database\corefakeWithAllCustomClasses\Select
  - class \Drupal\Core\Database\Driver\pgsql\Select
    class \Drupal\driver_test\Driver\Database\DrivertestPgsql\Select
  - class \Drupal\Core\Database\Driver\sqlite\Select
  - class \Drupal\Driver\Database\sqlsrv\Select
  - class \Drupal\sqlsrv\Driver\Database\sqlsrv\Select
  - class \Drupal\sqlsrv\Driver\Database\sqlsrv\Select
  - class \Drupal\sqlsrv\Driver\Database\sqlsrv\Select
  - class \Drupal\sqlsrv\Driver\Database\sqlsrv\Select
  - class \Drupal\Tests\Core\Database\Stub\Select
- class \Drupal\Core\Database\Query\Truncate
- class \Drupal\Core\Database\Query\Update implements ConditionInterface uses QueryConditionTrait
- class \Drupal\Core\Database\Query\Upsert implements \Drupal\Core\Database\Query\Countable uses InsertTrait