Value value = new Value(rowType.typeAt(columnNum));
value.putNull();
TPreptimeValue ptval = new TPreptimeValue (value.getType(), value);
pExpressions.add(new TPreparedLiteral(ptval.type(), ptval.value()));
ValuesRowType expectedType = schema.newValuesType(rowType.typeAt(columnNum));
Row[] rows = objectToRows(expected, expectedType);
Cursor cursor = API.cursor(
API.project_Default(