ExtendedAttributes for Idea post and Wiki page

Ideas and Wikis do not have support for extended attributes.  There is no way to add support for this.  Any custom data for these entities would need to be stored in a custom table and widget/api/database code would need to be written to support reading from and saving data to that custom table.

Ok thanks for the reply, is there any limitation for  ExtendedAttributes key value pair  count w.r.t performance