Upsert::$key
The unique or primary key of the table.
Type: string
File
- 
              core/
lib/ Drupal/ Core/ Database/ Query/ Upsert.php, line 25  
Class
- Upsert
 - General class for an abstracted "Upsert" (UPDATE or INSERT) query operation.
 
Namespace
Drupal\Core\Database\QueryCode
protected $key;
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.