cloud-fan commented on a change in pull request #32781:
URL: https://github.com/apache/spark/pull/32781#discussion_r647272859
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File path: docs/sql-performance-tuning.md
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@@ -218,7 +218,7 @@ For more details please refer to the documentation of [Join
Hints](sql-ref-synta
Coalesce hints allows the Spark SQL users to control the number of output
files just like the
`coalesce`, `repartition` and `repartitionByRange` in Dataset API, they can be
used for performance
tuning and reducing the number of output files. The "COALESCE" hint only has a
partition number as a
-parameter. The "REPARTITION" hint has a partition number, columns, or both of
them as parameters.
+parameter. The "REPARTITION" hint has a partition number, columns, or both of
them as parameters or neither of them as parameters.
Review comment:
`a partition number, columns, or both/neither of them as parameters.`
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