Manual:Transcache table

The  table is used to cache content that has been transcluded from other MediaWiki installations. See the Interwiki table docs and the $wgEnableScaryTranscluding configuration variable for details on the feature.

" " in MediaWiki 1.8+ returns the following:

+-+--+--+-+-+---+ +-+--+--+-+-+---+ +-+--+--+-+-+---+
 * Field      | Type         | Null | Key | Default | Extra |
 * tc_url     | varchar(255) | NO   | PRI | NULL    |       |
 * tc_contents | text        | YES  |     | NULL    |       |
 * tc_time    | int(11)      | NO   |     | NULL    |       |