comphead closed issue #14958: Table function supports non-literal args
URL: https://github.com/apache/datafusion/issues/14958
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alamb commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2873061319
> wating for [#16015](https://github.com/apache/datafusion/pull/16015) to be
merged
Maybe @irenjj has some thoughts as he startes reviewing correlated subqueries
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Lordworms commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2870484350
wating for https://github.com/apache/datafusion/pull/16015 to be merged
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Lordworms commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2777223899
Like what duckdb did
## 1. Detect Correlated Columns
- Walk subquery expressions and collect all outer (correlated) column
references.
- Represent them as `Expr::Outer
alamb commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2703669334
Thanks for the research @Lordworms
FYI I personally don't likely have much time to devote to reviewing
`LATERAL` / this feature.
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Lordworms commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2700016967
I have done some basic research on how Postgres deal with table function
with column, for example, something like this would work in Postgresql
```
SELECT t.id, t.start_v
alamb commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2699172543
I think this one is likely pretty tricky -- it might be worth working on a
design / writeup at first of how it would work / what the plans would look like
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Lordworms commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2698453390
take
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alamb commented on issue #14958:
URL: https://github.com/apache/datafusion/issues/14958#issuecomment-2694202386
It might also be time to treat table functions more generally too -- so they
could refer to actual columns, for example. Doing so would likely make
simplifier work fall out 🤔
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jonahgao opened a new issue, #14958:
URL: https://github.com/apache/datafusion/issues/14958
### Is your feature request related to a problem or challenge?
Currently, table functions like `range` only support literal arguments.
```sh
DataFusion CLI v45.0.0
> select * from range
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