andygrove opened a new pull request, #703:
URL: https://github.com/apache/datafusion-comet/pull/703
## Which issue does this PR close?
<!--
We generally require a GitHub issue to be filed for all bug fixes and
enhancements and this helps us generate change logs for our releases. You can
link an issue to this PR using the GitHub syntax. For example `Closes #123`
indicates that this PR will close issue #123.
-->
N/A
## Rationale for this change
<!--
Why are you proposing this change? If this is already explained clearly in
the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand your
changes and offer better suggestions for fixes.
-->
Two performance optimizations for CASE expressions were recently merged into
DataFusion.
### Before
```
TPCDS Micro Benchmarks: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
----------------------------------------------------------------------------------------------------------------------------
case_when_column_or_null 953 1005
47 302.2 3.3 1.0X
case_when_column_or_null: Comet (Scan) 988 1011
20 291.5 3.4 1.0X
case_when_column_or_null: Comet (Scan, Exec) 1214 1237
24 237.2 4.2 0.8X
case_when_scalar 202 220
18 356.6 2.8 1.0X
case_when_scalar: Comet (Scan) 1852 1869
19 38.9 25.7 0.1X
case_when_scalar: Comet (Scan, Exec) 378 401
15 190.4 5.3 0.5X
```
### After
```
TPCDS Micro Benchmarks: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
----------------------------------------------------------------------------------------------------------------------------
case_when_column_or_null 942 989
41 305.6 3.3 1.0X
case_when_column_or_null: Comet (Scan) 988 1002
11 291.5 3.4 1.0X
case_when_column_or_null: Comet (Scan, Exec) 857 894
26 336.2 3.0 1.1X
case_when_scalar 202 214
8 356.9 2.8 1.0X
case_when_scalar: Comet (Scan) 1849 1861
16 38.9 25.7 0.1X
case_when_scalar: Comet (Scan, Exec) 201 223
15 357.5 2.8 1.0X
```
## What changes are included in this PR?
<!--
There is no need to duplicate the description in the issue here but it is
sometimes worth providing a summary of the individual changes in this PR.
-->
Use newer DataFusion version
## How are these changes tested?
<!--
We typically require tests for all PRs in order to:
1. Prevent the code from being accidentally broken by subsequent changes
2. Serve as another way to document the expected behavior of the code
If tests are not included in your PR, please explain why (for example, are
they covered by existing tests)?
-->
Existing tests
--
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]
