shenbinglife opened a new issue #2936:
URL: https://github.com/apache/hudi/issues/2936
**Describe the problem you faced**
Try to update some field with new
value，OverwriteNonDefaultsWithLatestAvroPayload works in MOR table not as well
as COW
**To Reproduce**
Steps to reproduce the behavior:
1. create a mor table
2. read mor table as DataFrame
3. df.withColumn(xx, new Value).withColumn(xx2, lit(null).cast(StringType) )
4.
df.write.format("hudi").option(DataSourceWriteOptions.PAYLOAD_CLASS_OPT_KEY,
classOf[OverwriteNonDefaultsWithLatestAvroPayload].getCanonicalName)
4. read the mor table, I found the xx2 field is set as null but not the
previous value.
**Expected behavior**
A clear and concise description of what you expected to happen.
**Environment Description**
* Hudi version :0.7.0
* Spark version :2.4.5
* Hive version :
* Hadoop version :
* Storage (HDFS/S3/GCS..) :
* Running on Docker? (yes/no) :
**Additional context**
Add any other context about the problem here.
**Stacktrace**
```Add the stacktrace of the error.```
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