Setting DataField for FIXED_LEN_BYTE_ARRAY for writing

[jigleski]

Hello,

This may be an obvious question, but how does one initialize a DataField for a byte array such that that output column type is FIXED_LEN_BYTE_ARRAY?

I'm looking to create a column which only contains byte arrays which are always 12 bytes long so I'm assuming a fixed length byte array would make the most sense, but I'm unsure how indicate this with a DataField class instance.

Currently I'm using "DataField df = new DataField<byte[]>("data"));" and based on reviewing the output with parquet Floor it seems to be using "BYTE_ARRAY" which makes sense since I don't indicate a length anywhere.

[aloneguid]

There's no way to do this at the moment. This library can read fixed length byte arrays and converts them to .net's byte[] (which are variable length). This can be implemented, but will involve quite a bit of work in terms of validation and testing. I don't have plans to do that now, so happy for you to pick it up.