Hi everyone, I’d like to vote on the spec changes in PR 12841 <https://github.com/apache/iceberg/pull/12841>. This is a small change that makes handling default values for structs much easier. Initially, we allowed both a struct and its fields to have default values, but the values could conflict. For instance, ADD COLUMN point struct<x int default 0, y int default 0> default struct(-1, -1).
The fix is to always track default values at the field level and allow only null or null-null for the struct level defaults. That makes the feature more predictable because the struct’s default never needs to be modified or have field-level changes applied (i.e. removing field y or adding field z). In addition, I want to mention that this is not a one-way decision. We can always allow the struct-level default to differ later, if we have use cases in which a missing struct needs to have a different default than missing fields. Please vote in the next 72 hours: [ ] +1 Add these changes to the spec [ ] +0 [ ] -1 I have questions and/or concerns Thanks, Ryan
