[VOTE] Spec Update: Variant Field Lower/Upper Bounds

[Aihua Xu]

Hi all,

I'd like to initiate a vote to include a spec update for supporting lower
and upper bounds on Variant fields. Summary of the change:

The writer determines which fields to collect bounds for a Variant column.
Field bounds are stored as serialized Variant objects, where each key is a
normalized JSON path identifying a field, and each value is the
corresponding lower or upper bound.

Here is an example of a bound value:

{
  "$['event_type']": 10,
  "$['location']['latitude']": 37.338207,
  "$['tags']": "action"
}

Please take a look at  the PR <https://github.com/apache/iceberg/pull/12658>.
and vote in the next 72 hours.

[ ] +1 Accept the spec update
[ ] +0
[ ] -1 I have questions and/or concerns


Thanks,

Aihua