[basex-talk] basexhttp out of memory where basexgui suceeds

Hi, I have a database about 200 MB in size made up of approximately 150 000 documents of similar size and structure as children of the root node. When I run the following script in basexgui a significant amount of memory is consumed (over 1 GB if I'm reading the display correctly), but I do get a result: for $doc in db:get('docs') return $doc update { delete node .//*[local-name() = ('A', 'B', 'C', 'D')] } When I run it over basexhttp I get a java.lang.OutOfMemoryError: Java heap space. I have increased the memory available to the JVM to 4 GB but this has not affected the failure of the script. How can I resolve this? Is there some rewriting of the script that would help, or is it more specific to basexhttp? Many thanks, Jack