presto-kudu/src/main/java/io/prestosql/plugin/kudu/TypeHelper.java/TypeHelper/getBoolean
class TypeHelper:    public static boolean getBoolean(Type type, RowResult row, int field)
    {
        if (type == BooleanType.BOOLEAN) {
            return row.getBoolean(field);
        }
        throw new IllegalStateException("getBoolean not implemented for " + type);
    }