haohuaijin commented on PR #25234:
URL: https://github.com/apache/datafusion/pull/25234#issuecomment-5699295433

   Hi @kosiew,  I looked into the [merge queue 
failures](https://github.com/apache/datafusion/actions/runs/35077165383/job/104732215991).
 The [widening 
change](https://github.com/apache/datafusion/pull/25234#discussion_r3999298250) 
exposed two existing gaps in interval handling: 
[negation](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/physical-expr/src/expressions/negative.rs#L126)
 doesn’t handle `i32::MIN`, and [narrowing 
casts](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/physical-expr/src/expressions/cast.rs#L371)
 can fail on estimated bounds even when the actual data fits. Previously, those 
endpoints stayed unbounded, so these paths didn’t encounter the concrete 
limits. Preserving the source type’s bounds is valid, but it brought these 
cases into play, so we need to address them or leave widening out of this PR.
   
   I think we have two options:
   
   1. **Remove the widening change**, use `Float64` for the [FIFO test’s 
ordered 
column](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/core/tests/fifo/mod.rs#L242),
 and update the [sort 
expectation](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/sqllogictest/test_files/filter_without_sort_exec.slt#L251).
 I tested this, and all 154 previously failing SQLite files pass.
   2. **Keep widening** and fix how 
[negation](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/physical-expr/src/expressions/negative.rs#L126)
 and [narrowing 
casts](https://github.com/apache/datafusion/blob/2d0f3c3f0ce671e5606544e0f3725174c98b3518/datafusion/physical-expr/src/expressions/cast.rs#L371)
 handle those bounds.
   
   I’m perfer 1 to keep this PR focused, then opening a separate issue for the 
widening optimization. What do you think? I’d like to hear your thoughts before 
I update the PR.
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to