[SPARK-54300][PYTHON] Optimize Py4J calls in df.toPandas
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zhengruifeng
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### What changes were proposed in this pull request? Optimize Py4J config calls in df.toPandas ### Why are the changes needed? In spark connect, we get all configs in a batch; in spark classic, we can do the similar optimization that all configs are fetched in a batch, so that the py4j calls can be minimized. ### Does this PR introduce _any_ user-facing change? no ### How was this patch tested? ci ### Was this patch authored or co-authored using generative AI tooling? no Closes apache#52994 from zhengruifeng/py4j_conf_topandas. Authored-by: Ruifeng Zheng <ruifengz@apache.org> Signed-off-by: Ruifeng Zheng <ruifengz@apache.org>
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What changes were proposed in this pull request?
Optimize Py4J config calls in df.toPandas
Why are the changes needed?
In spark connect, we get all configs in a batch; in spark classic, we can do the similar optimization that all configs are fetched in a batch, so that the py4j calls can be minimized.
Does this PR introduce any user-facing change?
no
How was this patch tested?
ci
Was this patch authored or co-authored using generative AI tooling?
no