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I did a SQL query from a Geopackage with QGIS database manager. The query is correct and it returns me the expected result with it's ID and the GEOM columns. The problem becomes when I load the query as a layer. The software creates the layer but is void as you can see:

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Parameters and columns;

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Any ideas?

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    I solved it, the problemas was the amibguity between 2 of the columns in the query, ech one of those were at 2 diferents layers. I just especifyed adding "column.atribute" and then the layer loaded with all the information.
    – J.Patordi
    Commented Feb 1, 2021 at 14:20
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    You should answer your own question when you are able. Might help other people out.
    – HeikkiVesanto
    Commented Feb 1, 2021 at 14:28
  • The SQL query was a CTE. I did the proces in two querys. First I did the a JOIN, and then I did a selection over that JOIN. I don't know why the result of the CTE's (wich it was correct) it loaded as a void layer.
    – J.Patordi
    Commented Feb 1, 2021 at 18:24

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The problemas was the amibguity between 2 of the columns in the query, ech one of those were at 2 diferents layers. I just especifyed adding "column.atribute" and then the layer loaded with all the information.

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