rabosh-query/app.oreshkov.rabosh.query/Row/get

get

operator fun get(name: String): Variant?

The value of the projected field name, or null where the document does not have it.

operator fun get(index: Int): Variant?

The value of the projected field at index, in the order the projection names them.

The branch is on which source filled this row, not on whether a value happens to be there. A null in values means the document has no value at that path — an answer, not a miss — and falling through to source for it would be right only because a column-backed row has no source, which is the kind of accident that becomes a bug the moment one of them gains both.