Schema inconsistent

here is a copy of the schema report; is this a bug, or if it is usser error, how do i fix?

webform
column submit_text:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column email:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column email_from_name:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column email_from_address:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column email_subject:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column submit_text: key 'not null' not set, ignoring inspected default value
column email: key 'not null' not set, ignoring inspected default value
column email_from_name: key 'not null' not set, ignoring inspected default value
column email_from_address: key 'not null' not set, ignoring inspected default value
column email_subject: key 'not null' not set, ignoring inspected default value
webform_component
column form_key:
declared: array('type' => 'varchar', 'length' => 128, 'default' => )
actual: array('type' => 'varchar', 'length' => '128', 'not null' => FALSE)
column name:
declared: array('type' => 'varchar', 'length' => 255, 'default' => )
actual: array('type' => 'varchar', 'length' => '255', 'not null' => FALSE)
column type:
declared: array('type' => 'varchar', 'length' => 16, 'default' => )
actual: array('type' => 'varchar', 'length' => '16', 'not null' => FALSE)
column form_key: key 'not null' not set, ignoring inspected default value
column name: key 'not null' not set, ignoring inspected default value
column type: key 'not null' not set, ignoring inspected default value
webform_submitted_data
column sid:
declared: array('type' => 'int', 'unsigned' => TRUE, 'default' => 0)
actual: array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0, 'disp-width' => '10')