dusantism-db opened a new pull request, #49993:
URL: https://github.com/apache/spark/pull/49993

   ### What changes were proposed in this pull request?
   This PR changes `SubstituteExecuteImmediate`  to analyze it's entire subtree 
within a scoped context. This will allow us to disable SQL scripting local 
variables in the subtree, when they are added, which is necessary in order to 
sandbox the generated plan.
   
   This PR also moves `SubstituteExecuteImmediate` to `resolution` batch in the 
analyzer. This is necessary in order to resolve arguments of EXECUTE IMMEDIATE 
properly, notably if the EXECUTE IMMEDIATE is the child of a 
`ParameterizedQuery`. This ensured proper resolution ordering i.e. first all 
parameters of EXECUTE IMMEDIATE will be resolved, and only then will the 
generated query itself be analyzed.
   
   
   ### Why are the changes needed?
   They are necessaty for local variables support in SQL scripting.
   
   
   ### Does this PR introduce _any_ user-facing change?
   <!--
   Note that it means *any* user-facing change including all aspects such as 
new features, bug fixes, or other behavior changes. Documentation-only updates 
are not considered user-facing changes.
   
   If yes, please clarify the previous behavior and the change this PR proposes 
- provide the console output, description and/or an example to show the 
behavior difference if possible.
   If possible, please also clarify if this is a user-facing change compared to 
the released Spark versions or within the unreleased branches such as master.
   If no, write 'No'.
   -->
   No.
   
   ### How was this patch tested?
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it was difficult to add.
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for the consistent environment, and the instructions could accord to: 
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   Existing unit tests and golden files.
   
   
   ### Was this patch authored or co-authored using generative AI tooling?
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   No.
   


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