Returns the schema definition.
Overrides ViewUnitTestBase::schemaDefinition
protected function schemaDefinition() {
$schema = parent::schemaDefinition();
$schema['views_test_data']['fields']['description'] = array(
'description' => "A person's description",
'type' => 'text',
'not null' => FALSE,
'size' => 'big',
);
return $schema;
}