I suggest that the limit of 4000 characters in a query box is taken away.
We have local databases in different countries with research results. Each report have a document number, 09-1001, 09-2001, 09-3001 etc depending on site. In a group common database all the reports from the different sites are collected. As i sometimes do control that all the references in the different databases really are imported to the common database, I try to put in more than 4000 characters in a query, and needs to make several questions because of this limitation.