[otrs] RuntimeDB vs. StaticDB for full text search

My OTRS 3.0 system was set to RuntimeDB for Ticket::IndexModule. As a result, my searches on ticket number returned no results. Is this expected? It looks like %FieldSQLMapFullText is missing an element for ticket number. my %FieldSQLMapFullText = ( From => 'art.a_from', To => 'art.a_to', Cc => 'art.a_cc', Subject => 'art.a_subject', Body => 'art.a_body', ); I've changed it StaticDB for now and the results are as expected. http://doc.otrs.org/3.0/en/html/c3210.html#performance-tuning-otrs-index