zhengruifeng commented on PR #39302:
URL: https://github.com/apache/spark/pull/39302#issuecomment-1367713744
this PR is to fix:
```
File "/.../spark/python/pyspark/sql/connect/column.py", line 90, in
pyspark.sql.connect.column.Column.eqNullSafe
Failed example:
df1.select(
df1['value'] == 'foo',
df1['value'].eqNullSafe('foo'),
df1['value'].eqNullSafe(None)
).show()
Exception raised:
Traceback (most recent call last):
File "/.../miniconda3/envs/python3.9/lib/python3.9/doctest.py", line
1336, in __run
exec(compile(example.source, filename, "single",
File "<doctest pyspark.sql.connect.column.Column.eqNullSafe[2]>", line
4, in <module>
df1['value'].eqNullSafe(None)
File
"/.../workspace/forked/spark/python/pyspark/sql/connect/column.py", line 78, in
wrapped
return scalar_function(name, self, other)
File
"/.../workspace/forked/spark/python/pyspark/sql/connect/column.py", line 95, in
scalar_function
return Column(UnresolvedFunction(op, [arg._expr for arg in args]))
File
"/.../workspace/forked/spark/python/pyspark/sql/connect/column.py", line 95, in
<listcomp>
return Column(UnresolvedFunction(op, [arg._expr for arg in args]))
AttributeError: 'NoneType' object has no attribute '_expr'
```
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