docs: Add documentation on Spark 4 limitations#4018
Open
andygrove wants to merge 1 commit intoapache:mainfrom
Open
docs: Add documentation on Spark 4 limitations#4018andygrove wants to merge 1 commit intoapache:mainfrom
andygrove wants to merge 1 commit intoapache:mainfrom
Conversation
andygrove
commented
Apr 21, 2026
Comment on lines
+134
to
+136
|
|
||
| Comet does not yet support the Variant data type introduced in Spark 4.0. All variant-related operations | ||
| will fall back to Spark. Tracking issue: [#2209](https://github.com/apache/datafusion-comet/issues/2209) |
Member
Author
There was a problem hiding this comment.
I need to confirm the actual behavior for variant
Contributor
|
I feel that we need to wait a bit before removing the experimental label (rest of the changes to the documentation are fine). There is still ongoing work to resolve the ANSI mode and cast incompatibilities and there are new test failures : #4013. My recommendation would be to remove the experimental label one release after the fixes are in. |
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Which issue does this PR close?
Part of #1637
Rationale for this change
There has been good progress on enabling Spark SQL tests for Spark 4.
I propose that we stop saying that Spark 4 support is "experimental" and now just document the limitations.
What changes are included in this PR?
Docs changes.
How are these changes tested?