GET /v1/apps/{appId}/data/lineage not working well when using precedent loads

[mgbaldoma]

Hi.

I'm working on an app to navigate the lineage data from our apps.
Everything went well until I've noticed the lineage is blank when precedent load is used.

Example:
Load field1 From [lib://SomeDataSpace:SomeDataConn/SomeTable.qvd (qvd);

The API request for that app will return:
[
{
"discriminator": "lib://SomeDataSpace:SomeDataConn/SomeTable.qvd;",
"statement": ""
}
]

If you add a precedent load:
Load *, 1 as counter;
Load field1 From [lib://SomeDataSpace:SomeDataConn/SomeTable.qvd (qvd);

The new request will return 
[
{
"discriminator": "",
"statement": ""
}
]

This happens in Saas and in QSEoW (tested on Nov/23 and Feb/24). On QSEoW you can test this on the Qlik Engine Explorer, calling the GetLineage doc method.

[mgbaldoma]

Hey, I forgot about this post. I reported it as a bug, and it has been fixed on SaaS, but they won’t be fixing it in QSEoW since the API endpoint for that platform is going to be deprecated soon.

[Thomas_Hopp]

This is fixed from Nov 24 release onwards as well in the on premise QSEoW product.

Best regards,

Thomas