+1 (Binding) On Mon, Apr 21, 2025 at 4:21 PM Ryan Blue <rdb...@gmail.com> wrote:
> 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 >
