[iceberg] Refuse time precisions the mirror cannot publish - #9467
Merged
JingsongLi merged 1 commit intoAug 30, 2026
Merged
Conversation
plusplusjiajia
marked this pull request as ready for review
August 29, 2026 16:35
plusplusjiajia
force-pushed
the
gh-iceberg-refuse-time-precision
branch
from
August 29, 2026 16:36
dd10235 to
75528ce
Compare
Contributor
|
+1 |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Purpose
Iceberg compatibility converts only
TIMEprecision 0-3 (IcebergDataField,IcebergConversions), but no schema-level rule enforces it. ATIME(4..9)column passes create, alter and commit with Iceberg metadata enabled, and only fails while the metadata is built - after the Paimon snapshot is already committed, so the caller sees a failure while the data is durable and the Iceberg view is missing. This validates the precision where the other Iceberg type rules live, for the current schema and for the historical schemas the mirror publishes, and documents theTIMEmapping.Tests
SchemaManagerTest: create, enable-by-alter and historical-schema paths forTIME(4),TIME(6),TIME(9);TIME(3)still accepted.