The files converter.go and converter_test.go in this directory were copied and modified from the DoltgreSQL project (as of 2024-08-28, https://github.com/dolthub/doltgresql/blob/main/testing/go/enginetest/query_converter_test.go). The original code is licensed under the Apache License, Version 2.0. The modifications are also licensed under the Apache License, Version 2.0.