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**Describe the bug**
I followed the https://arrow.apache.org/datafusion/user-guide/cli.html, but
the CLI cannot run
```
datafusion-cli
-bash: datafusion-cli: command not found
```
python modul…
l1t1 updated
4 months ago
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### Is your feature request related to a problem or challenge?
@2010YOUY01 found a bug where `substr` behaved differently for StringView than for String: https://github.com/apache/datafusion/pull/…
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**Describe the bug**
We use the ipc format to transfer recordbatch between nodes, and then we find that using lz4 compression or no compression will cause the result returned by the get_array_mem…
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### Describe the bug
Using the `::timestamp` (or CAST()) function strips timezone information.
### To Reproduce
```
DataFusion CLI v40.0.0
> select arrow_typeof(now()) as tz;
+------------------…
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### Is your feature request related to a problem or challenge?
Part of https://github.com/apache/arrow-datafusion/issues/7014
If we want to have DataFusion used as the core of many new systems, we…
alamb updated
1 month ago
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## What this project could be
I think this project needs someone who wants to make a world class python dataframe library and user experience take the helm. I will argue why I think this is a comp…
alamb updated
4 months ago
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# Call to action:
Let's invest more effort in DataFusion benchmarking, both as a mechanism for technical evangelism as well as a guide for actual performance improvements.
# Background
We ha…
alamb updated
3 months ago
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### Is your feature request related to a problem or challenge?
This is a common ticket for all other tickets.
The ticket was created for the next purposes:
- Track the progress of implementing ar…
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### Is your feature request related to a problem or challenge?
DataFusion performs CPU bound work within async closures. This causes issues if running IO on the same async runtime, as the cooperati…
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Assume the following query:
```
SELECT * FROM t1 INNER JOIN t2 ON t1.a = t2.b
```
The `t2.b` column does not allow null values but `t1.a` does. Rows in `t1` where `a` is null can never match a…