cloud-fan commented on a change in pull request #32932:
URL: https://github.com/apache/spark/pull/32932#discussion_r656799496
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File path: docs/sql-ref-syntax-qry-select-hints.md
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@@ -51,6 +51,10 @@ specified, multiple nodes are inserted into the logical
plan, but the leftmost h
The `REPARTITION_BY_RANGE` hint can be used to repartition to the specified
number of partitions using the specified partitioning expressions. It takes
column names and an optional partition number as parameters.
+* **REPARTITION_BY_AQE**
Review comment:
The doc here is pretty bad...
```
**REBALANCE_PARTITIONS**
The `REBALANCE_PARTITIONS` hint can be used to rebalance the query result
output partitions, so that
every partition is of a reasonable size (not too small and not too big). It
can take column names as
parameters, and try its best to partition the query result by these columns.
This is a best-effort: if
there are skews, Spark will split the skewed partitions, to make these
partitions not too big.
This hint is ignored if AQE is not enabled.
```
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