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Posted to jira@arrow.apache.org by "Jorge Leitão (Jira)" <ji...@apache.org> on 2020/12/08 07:37:00 UTC

[jira] [Created] (ARROW-10844) [Rust] [DataFusion] join of two DataFrames is not possible

Jorge Leitão created ARROW-10844:
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             Summary: [Rust] [DataFusion] join of two DataFrames is not possible
                 Key: ARROW-10844
                 URL: https://issues.apache.org/jira/browse/ARROW-10844
             Project: Apache Arrow
          Issue Type: Bug
          Components: Rust, Rust - DataFusion
    Affects Versions: 3.0.0
            Reporter: Jorge Leitão


The pseudo code

 

```

df = context.createDataFrame(...)

df1 = context.createDataFrame(...)

df.join(df1, ...)

```

currently does not work because we clone the {{ExecutionContextState}} from the context to the `df`, causing the join statement to only have one of the registered tables in the context state available (as it was not mutated by the second `createdataFrame`).

We may need an Arc<Mutex<{{ExecutionContextState}}>> so that we have multiple mutability of their attributes.

 

 

 



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