add boolean cast test
add boolean cast test

splashblot/dronedb,nyimbi/cartodb,dbirchak/cartodb,nuxcode/cartodb,future-analytics/cartodb,nuxcode/cartodb,bloomberg/cartodb,future-analytics/cartodb,bloomberg/cartodb,thorncp/cartodb,UCL-ShippingGroup/cartodb-1,UCL-ShippingGroup/cartodb-1,CartoDB/cartodb,codeandtheory/cartodb,DigitalCoder/cartodb,nyimbi/cartodb,UCL-ShippingGroup/cartodb-1,future-analytics/cartodb,thorncp/cartodb,future-analytics/cartodb,codeandtheory/cartodb,splashblot/dronedb,dbirchak/cartodb,codeandtheory/cartodb,bloomberg/cartodb,nyimbi/cartodb,splashblot/dronedb,raquel-ucl/cartodb,codeandtheory/cartodb,nuxcode/cartodb,raquel-ucl/cartodb,raquel-ucl/cartodb,DigitalCoder/cartodb,raquel-ucl/cartodb,nuxcode/cartodb,thorncp/cartodb,nuxcode/cartodb,splashblot/dronedb,splashblot/dronedb,bloomberg/cartodb,future-analytics/cartodb,raquel-ucl/cartodb,DigitalCoder/cartodb,dbirchak/cartodb,CartoDB/cartodb,nyimbi/cartodb,thorncp/cartodb,UCL-ShippingGroup/cartodb-1,DigitalCoder/cartodb,CartoDB/cartodb,dbirchak/cartodb,bloomberg/cartodb,UCL-ShippingGroup/cartodb-1,CartoDB/cartodb,DigitalCoder/cartodb,nyimbi/cartodb,dbirchak/cartodb,thorncp/cartodb,CartoDB/cartodb,codeandtheory/cartodb