Table of attributes I want to merge with Group By: FILENAME
Input
Aggregator
Output
Desire
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- 7843 replies
The output is correct, since <null> is a value. Consider using the NullAttributeMapper to remove all <null> values (i.e. change to <missing>) to get the desired result.
+16- Contributor
- 33 replies
The output is correct, since <null> is a value. Consider using the NullAttributeMapper to remove all <null> values (i.e. change to <missing>) to get the desired result.
Thank-you
- 7843 replies
The output is correct, since <null> is a value. Consider using the NullAttributeMapper to remove all <null> values (i.e. change to <missing>) to get the desired result.
<empty> is a string value consisting of no characters; <null> is a special value indicating that the attribute exists but it doesn't have a valid value; <missing> indicates that the attribute does not exist.