Hi everyone, I'd like to start a vote to adopt the new expressions spec. This spec defines the minimal structure and behavior of expressions <https://docs.google.com/document/d/1VthBz0S2I39TeQM8oiF9_gSPQu_gHAjWXvdFpv0QqDk/edit?tab=t.0#heading=h.54u4q3416qx8> that Iceberg formats need to store and exchange. This is intended to clean up expressions used in the REST catalog spec (exchanging query filters) and to enable new use cases that require expressions to be stored in metadata, including expression defaults (`current_timestamp()`) and `CHECK` constraints (`col < 360.0`).
This spec is PR #16652 <https://github.com/apache/iceberg/pull/16652>. Thank you to everyone that has discussed this in community syncs or reviewed the design doc and PR! Please vote in the next 72 hours: [ ] +1: Adopt the expressions spec [ ] +0: . . . [ ] -1: Do not add the spec because . . . Thanks, Ryan
