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https://issues.apache.org/jira/browse/SPARK-61202?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon updated SPARK-61202:
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    Fix Version/s: connect-rust-4.3.0

> Send the relation of a DataFrame into the plans of pyspark.ml without parsing 
> it, so deep DataFrames fit and transform, in the Python client as PySpark does
> ------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-61202
>                 URL: https://issues.apache.org/jira/browse/SPARK-61202
>             Project: Spark
>          Issue Type: Bug
>          Components: Connect
>    Affects Versions: connect-rust-4.3.0
>            Reporter: Hyukjin Kwon
>            Priority: Major
>             Fix For: connect-rust-4.3.0
>
>
> pyspark.ml fails on DataFrames whose plan nests past about 100 protobuf 
> levels. LogisticRegression().fit(df) over a DataFrame of about 50 chained 
> withColumn calls raises "DecodeError: Error parsing message: too many levels 
> of nesting", and so does transform of a OneVsRest model with 10 or more 
> classes. The Python plan of a DataFrame parses the relation with the Python 
> protobuf decoder, and DataFrame(plan) parses it again with the Rust decoder, 
> both with a recursion limit of 100. PySpark builds the nested message without 
> parsing it, so it works at these depths.
> Repro: a DataFrame of 60 withColumn calls, then 
> LogisticRegression(maxIter=2).fit(df). The fix sends a placeholder of the 
> relation from Python, and the core replaces it with the relation of the 
> DataFrame when the plan reaches it.



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