Decimal support in Avro Schemas about jackson-dataformats-binary HOT 3 CLOSED

If anyone wants to take a stab for both serialization and deserialization, I can merge it.

I can't quite tell from description exactly how logical types should work so some investigation would be needed to figure out the whole system. There seem to be other logical types that could be supported as well.

from jackson-dataformats-binary.

FWTW, there has been lots of recent activity wrt Avro module, and I think BigDecimal values may now be handled as Strings. I think this isn't 100% what was asked here but thought I'll mention as it may be relevant for further improvements.

from jackson-dataformats-binary.

Correct, in master BigDecimal is now correctly handled in a manner that is consistent with the avro reference implementation and fully preserves all precision.

Because BigDecimal is dynamic precision and the avro logical Decimal type is fixed precision, I would not generate schemas with logical Decimal fields for java's BigDecimal; However, the NonBSGenericDatumWriter could be updated such that Jackson is supported writing a BigDecimal into a logical Decimal field, assuming you have a hand-generated schema or used the @AvroSchema annotation. (It already coerces BigDecimals into a double if the field schema is DOUBLE instead of STRING to preserve compatibility with previously-generated schemas)

from jackson-dataformats-binary.