presto-thrift-api/src/main/java/io/prestosql/plugin/thrift/api/PrestoThriftNullableSchemaName.java/PrestoThriftNullableSchemaName/getSchemaName
class PrestoThriftNullableSchemaName:    @Nullable
    @ThriftField(value = 1, requiredness = OPTIONAL)
    public String getSchemaName()
    {
        return schemaName;
    }