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We're considering the adoption of DataFusion as a replacement for our custom query planner and plan optimizer. However this would require the ability to extend the Optimizer with custom optimization r…
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Hi guys, I'm Dario.
I have been struggling with an issue and I am trying to understand it.
I am trying to create my own cross-language library on top of `datafusion` and `datafusion-python`.
Let'…
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**Is your feature request related to a problem? Please describe.**
Most other rule based execution engines have some form of expression simplification.
Some common optimizations
- inline constant…
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**Describe the bug**
We don't have stubs for the following Trino functions:
```
error: Failed to parse 111 functions:
bitwise_or_agg: Internal error: [BUG] rust function trino::bitwise_or_agg_big…
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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…
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## Motivation:
Once we merge #324 and complete the basic groundwork, the integration crate can be continuously refined. Due to for example more supported features like predicate pushdown, etc.
Thi…
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Would be pretty interesting to see how well these OLAP query engines fare.
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### Is your feature request related to a problem or challenge?
I had some discussions with @alamb about supporting a dynamic file data source (`select ... from 'select .. from 'data.parquet'` like #4…
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I recently discovered that both [polars](https://github.com/pola-rs/polars/issues/16248) and [datafusion-python](https://github.com/apache/datafusion-python/issues/703) do not push down timestamp pred…
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Hello
I would like to write into Delta lake via DataFusion just like spark.
Future support
Append, overwrite, Merge into