Abhishek Pal created ATLAS-4750:
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Summary: [Relationship Search] Relationship search isNull case
doesn't consider null strings
Key: ATLAS-4750
URL: https://issues.apache.org/jira/browse/ATLAS-4750
Project: Atlas
Issue Type: Bug
Components: atlas-core
Reporter: Abhishek Pal
Currently Atlas supports relationship search where we can search entities by
their relationships.
We can use various filters to search for the relationship, where one such
filter is a condition of "isNull".
If there are relationships where a string type attribute is set to *""* (null
string), it considers this as non-null.
For example if there is are two relationships with attributes:
* relation_X
** "type_str": ""
* relation_Y
** "type_str": null
and we search by condition:
{code}
{
"attributeName": "type_str",
"operator": "isNull",
"attributeValue": ""
}
{code}
we get only *relation_Y*
Whereas since *relation_X* has
{panel} "type_str":"" {panel}
it is not treated as a null value and hence not returned.
Ideally this should also be considered a null type
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