asfgit closed pull request #7282: [hotfix][docs] imporve docs of batch overview
URL: https://github.com/apache/flink/pull/7282
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diff --git a/docs/dev/batch/index.md b/docs/dev/batch/index.md
index d0043647227..b4dd1671d85 100644
--- a/docs/dev/batch/index.md
+++ b/docs/dev/batch/index.md
@@ -406,7 +406,8 @@ DataSet<Integer> result = in.partitionByRange(0)
<i>Note</i>: This method works only on single field keys.</p>
{% highlight java %}
DataSet<Tuple2<String,Integer>> in = // [...]
-DataSet<Integer> result = in.partitionCustom(Partitioner<K> partitioner, key)
+DataSet<Integer> result = in.partitionCustom(partitioner, key)
+ .mapPartition(new PartitionMapper());
{% endhighlight %}
</td>
</tr>
@@ -709,7 +710,7 @@ val result = in.partitionByRange(0).mapPartition { ... }
{% highlight scala %}
val in: DataSet[(Int, String)] = // [...]
val result = in
- .partitionCustom(partitioner: Partitioner[K], key)
+ .partitionCustom(partitioner, key).mapPartition { ... }
{% endhighlight %}
</td>
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