StaticcolumnsThe columns of one GET feature (usually one; a relation with several sub features gives one per sub feature)
StaticfirstThe text of the first GET column (qid aside) with a plain value in this record, null when there is none
StaticqueryAll result columns of a parsed query, in GET order
StaticresolveThe values of a column in a result record
Reads the values of a query's GET columns from its result records