How to handle a Decimal > 28 digits (The dotnet limit)

[lovalvob]

I'm moving data from a database (often Oracle) into Parquet where the precision of the decimal value exceeds the 28-digits that we have in .net decimal types - say Decimal(36,4). This is a problem in the .net database providers, but I can get around that by extracting the data as text. What I don't know is how to insert that large decimal into a Parquet file using Parquet-dotnet.

I can think of a few options:

• Perhaps there's a Parse() option on the decimal type in Parquet-dotnet?
• Is there a custom datatype that I've missed?
• Format the binary representation directly, but then how would I write it?

I suspect that I'm not the first one to come across this, but if there's a solution, I must have missed it.

Any suggestions?