optimization: reduce perl memory footprint when doing SQL queries
optimization: reduce perl memory footprint when doing SQL queries

paczian/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,teharrison/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,MG-RAST/MG-RAST,teharrison/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,paczian/MG-RAST,wilke/MG-RAST,MG-RAST/MG-RAST,MG-RAST/MG-RAST,paczian/MG-RAST,paczian/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,wilke/MG-RAST,paczian/MG-RAST,wilke/MG-RAST,teharrison/MG-RAST,MG-RAST/MG-RAST