SCHJonathan opened a new pull request, #53303:
URL: https://github.com/apache/spark/pull/53303
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### What changes were proposed in this pull request?
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Eager analysis / execution inside the SDP flow function is not supported.
Previously, we enforce such restriction by intercepting the `AnalyzePlan` /
`ExecutePlan` RPC from the Python Spark Connect Client side, which is fragile.
It's mostly because during that time, we don't have a good way for the SC
server to know whether it is serving a requests that made inside a flow
function.
Now, we have `PipelineAnalysisContext`. If the request comes from the flow
function, SC client automatically add a `PipelineAnalysisContext` UserContext
extension and SC server can based on its existence to know whether the request
comes from flow function. Thereby, we're now able to move the eager analysis /
execution validation from the client to the server.
### Why are the changes needed?
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Our previous way of performing such validation is very fragile and this PR
serves as an code improvement.
### Does this PR introduce _any_ user-facing change?
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No
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New unit tests in PythonPipelineSuite
### Was this patch authored or co-authored using generative AI tooling?
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No
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