fix sqlite warning
fix sqlite warning

nakaji-dayo/persistent,mitchellwrosen/persistent,naushadh/persistent,superduper/persistent,jasonzoladz/persistent,jcristovao/persistent,superduper/persistent,greydot/persistent,plow-technologies/persistent,meteficha/persistent,jasonzoladz/persistent,greydot/persistent,nakaji-dayo/persistent,jcristovao/persistent,meteficha/persistent,paul-rouse/persistent,andrewthad/persistent,psibi/persistent,andrewthad/persistent,pseudonom/persistent,yesodweb/persistent,mkscrg/persistent,gbwey/persistent,mitchellwrosen/persistent,jcristovao/persistent,rdnetto/persistent,mkscrg/persistent,junjihashimoto/persistent,gbwey/persistent,mitchellwrosen/persistent,junjihashimoto/persistent,superduper/persistent,bitemyapp/persistent,jasonzoladz/persistent,creichert/persistent,erikd/persistent,gbwey/persistent,andrewthad/persistent,mkscrg/persistent,nakaji-dayo/persistent,rdnetto/persistent,greydot/persistent,meteficha/persistent,pseudonom/persistent