'description' => ts('date on which this job was added.'),
'required' => FALSE,
'where' => 'civicrm_mailing_spool.added_at',
- 'default' => 'NULL',
+ 'default' => NULL,
'table_name' => 'civicrm_mailing_spool',
'entity' => 'Spool',
'bao' => 'CRM_Mailing_BAO_Spool',
'description' => ts('date on which this job was removed.'),
'required' => FALSE,
'where' => 'civicrm_mailing_spool.removed_at',
- 'default' => 'NULL',
+ 'default' => NULL,
'table_name' => 'civicrm_mailing_spool',
'entity' => 'Spool',
'bao' => 'CRM_Mailing_BAO_Spool',