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mgbaldoma
Partner - Contributor
Partner - Contributor

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

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.

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