Extension:CreditsSource/swsource links table
mysql> describe swsource_links; +---------------+------------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +---------------+------------------+------+-----+---------+-------+ | swsl_workid | int(10) unsigned | NO | PRI | NULL | | | swsl_sourceid | int(10) unsigned | NO | PRI | NULL | | | swsl_comment | varbinary(255) | NO | | | | +---------------+------------------+------+-----+---------+-------+