Yunfeng Zhou created FLINK-27797:
------------------------------------
Summary: PythonTableUtils.getCollectionInputFormat cannot
correctly handle None values
Key: FLINK-27797
URL: https://issues.apache.org/jira/browse/FLINK-27797
Project: Flink
Issue Type: Bug
Components: API / Python
Affects Versions: 1.15.0
Reporter: Yunfeng Zhou
In `PythonTableUtils.getCollectionInputFormat` there are implementations like
follows.
This code can be found at
[https://github.com/apache/flink/blob/8488368b86a99a064446ca74e775b67ffff0b94a/flink-python/src/main/java/org/apache/flink/table/utils/python/PythonTableUtils.java#L515]
```
c -> {
if (c.getClass() != byte[].class || dataType instanceof
PickledByteArrayTypeInfo) {
return c;
}
```
Here, the generated function did not check `c != null` before doing
`c.getClass()`. which might cause that tables created through pyflink cannot
parse it when values are `None`.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
