Manual:Page props table

Contains properties about pages, currently only used with __HIDDENCAT__ magic word.

mysql> describe page_props; +-+---+--+-+-+---+ +-+---+--+-+-+---+ +-+---+--+-+-+---+ 3 rows in set (0,00 sec)
 * Field      | Type          | Null | Key | Default | Extra |
 * pp_page    | int(11)       | NO   | PRI | NULL    |       |
 * pp_propname | varbinary(60) | NO  | PRI | NULL    |       |
 * pp_value   | blob          | NO   |     | NULL    |       |