asdf2014 commented on a change in pull request #7020: Write null byte when
indexing numeric dimensions with Hadoop
URL: https://github.com/apache/incubator-druid/pull/7020#discussion_r262786690
##########
File path:
indexing-hadoop/src/main/java/org/apache/druid/indexer/InputRowSerde.java
##########
@@ -268,7 +283,7 @@ public void serialize(ByteArrayDataOutput out, Object
value)
@Override
public Double deserialize(ByteArrayDataInput in)
{
- return in.readDouble();
+ return isNullByteSet(in) ? null : in.readDouble();
Review comment:
Same.
```java
return Optional.ofNullable(in)
.filter(InputRowSerde::isNullByteSet)
.map(ByteArrayDataInput::readDouble)
.get();
```
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