Ryan Blue wrote:

> * Decimal is supported if the backing primitive type is fixed-length
binary

I was a little surprised to read this.

Q: Where can I learn more about current parquet support for Decimal /
BigDecimal?

To be clear, I have not followed this for some time but ...

I thought that there was support for fixed point decimal with an INT64 base
type and an implied decimal position as a property ... for up to 18 digits
precision.

If Decimal is being stored as fixed-length binary, for the Java
implementation I wonder what mechanism is being used to serialize the
BigDecimal ... since java.math.BigDecimal does not expose a path for byte
serialization ... except through java.math.BigInteger


Michael

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