How to support `enums` and `records, tuples`?

[mamcx]

Our db engine support algebraic data types, and I wonder if is possible to encode enums, records, tuples using pg types Type::RECORD, Type::ANYENUM, but how encode it?

[sunng87]

I haven't tested it by myself, but this patch from datafusion-postgres project might be helpful or inspiring: https://github.com/sunng87/datafusion-postgres/pull/69/files#diff-c222b9275e2e1fdfcdc4ff5dbc95d501ac38a0804c4cb755e6253d2345c411a3R14