defaultsummaryid 1391971216
classes[].id 1391971216
classes[].name "default"
classes[].fields[].name "some_predicate_field"
classes[].fields[].type "string"
classes[].fields[].name "rankfeatures"
classes[].fields[].type "featuredata"
classes[].fields[].name "summaryfeatures"
classes[].fields[].type "featuredata"
classes[].fields[].name "documentid"
classes[].fields[].type "longstring"
classes[].id 1274088866
classes[].name "attributeprefetch"
classes[].fields[].name "rankfeatures"
classes[].fields[].type "featuredata"
classes[].fields[].name "summaryfeatures"
classes[].fields[].type "featuredata"