doc: Document scan tuning for spark.sql.files.maxPartitionBytes#4931
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comphead wants to merge 2 commits into
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doc: Document scan tuning for spark.sql.files.maxPartitionBytes#4931comphead wants to merge 2 commits into
spark.sql.files.maxPartitionBytes#4931comphead wants to merge 2 commits into
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wForget
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Jul 15, 2026
| ### Native scans | ||
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| For native scans it is better to check `spark.sql.files.maxPartitionBytes` which is `128M` by default and | ||
| set it to `spark.sql.files.maxPartitionBytes: 64M`. The difference comes from how Apache DataFusion and Spark determine the Parquet row group boundaries. |
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Does this mean we should recommend setting spark.sql.files.maxPartitionBytes to half of parquet.block.size?
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Which issue does this PR close?
Related #3817.
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