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# Environment
**Delta-rs version**: 0.10.2
**Binding**: Python
**Environment**:
Ubuntu 22:
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# Bug
see title.
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**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
I would like access to the [full set](https://arrow.apache.org/datafusion/user-guide/sql/aggr…
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Currently everything is read only.
To start, we can create the execution plans. Follow on work may be needed for if we want to mark data sources read-only, but this will likely coincide with some s…
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for datafusion, we need to add interface which is used to identify the expr is constant or literal or not.
If we have this interface, we can make more optimization.
But the interface should be bett…
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### Is your feature request related to a problem or challenge?
@waynexia mentioned https://github.com/apache/arrow-datafusion/pull/9719#pullrequestreview-1956506186
### Describe the solution you'd …
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**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] …
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### Is your feature request related to a problem or challenge?
I want to create a udf that can select multiple functions at once, such as a `COLUMNS()` function.
`select COLUMNS('number\d+') from …
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if we care about performance, we should stop using dynamic dispatch and make the parser generic around the dialect, with that we could make lots of these methods `const` (or drop the `Precedence` enum…
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**Describe the bug**
A clear and concise description of what the bug is.
https://github.com/apache/arrow-datafusion/blob/58b43f5c0b629be49a3efa0e37052ec51d9ba3fe/datafusion/core/src/physical_pla…
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As discussed in the rust arrow chat, this is a place to chart a way forward by collecting examples of both what people do in other libraries and what they want to do but can't do easily with current t…