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[DISCUSSION] Should we implement access control hooks in DataFusion?

5

### Is your feature request related to a problem or challenge? @comphead brings up an excellent point here: https://github.com/apache/arrow-datafusion/pull/7441#issuecomment-1698341294 Basically many database systems allow some sort of access control such...

alamb

Non cancel-safe tokio spawns

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### Describe the bug I see a lot of cases of using `tokio::spawn` without wrapping `JoinHandle`s correctly. So if we stop execution (e.g `tokio::select!`) - we can find some tasks...

DDtKey

DataFusion to run SQL queries on Parquet files with error No suitable object store found for file

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I have a parquet file in a directory called /resource/user inside the project directory. ``` --project root --resources --user --user1.parquet --user2.parquet --user3.parquet --main.rs ``` I use this directory as the...

helxsz

feature: support nvl(ifnull) function

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## Which issue does this PR close? Closes #9261. ## Rationale for this change add a new function `nvl` ## What changes are included in this PR? ## Are these...

guojidan

datafusion-cli not installed

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### Describe the bug https://arrow.apache.org/datafusion/user-guide/cli.html the CLI cannot run ``` datafusion-cli -bash: datafusion-cli: command not found ``` ### To Reproduce pip install datafusion datafusion-cli ### Expected behavior the CLI runs...

l1t1

refactor: move acos() to function crate

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## Which issue does this PR close? Part of #9285 ## Rationale for this change ## What changes are included in this PR? Move math function `acos()` to the function...

SteveLauC

Add test to prevent circular dependencies from being added

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## Which issue does this PR close? Closes https://github.com/apache/arrow-datafusion/issues/9278 ## Rationale for this change Add CI check to prevent circular dependencies from being introduced ## What changes are included in...

andygrove

Support ORDER BY in AggregateUDF

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## Which issue does this PR close? Closes #8984. ## Rationale for this change ## What changes are included in this PR? ## Are these changes tested? ## Are there...

jayzhan211

Can't serialize example `ExecutionPlan` to substrait

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### Is your feature request related to a problem or challenge? While working on an example for serializing substrait plans (see https://github.com/apache/arrow-datafusion/pull/9260 PR), I found I could not write an...

alamb

Move the to_timestamp* functions to datafusion-functions

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### Is your feature request related to a problem or challenge? As part of https://github.com/apache/arrow-datafusion/issues/9285 the to_timestamp* datetime functions should be migrated to the new datafusion-functions crate in the new...

Omega359