Hi Amedeo,

On Wed, 16. Nov 2022 at 14:18:57 +0100, Amedeo Fadini via Qgis-user wrote:
> SELECT count(distinct ("id","field1"))=count(("id","field1")) FROM
> "public"."mytable"

Check  "use estimated table metadata" in the connection before adding the
layer.


Jürgen


-- 
Jürgen E. Fischer           norBIT GmbH             Tel. +49-4931-918175-31
Dipl.-Inf. (FH)             Rheinstraße 13          Fax. +49-4931-918175-50
Software Engineer           D-26506 Norden            https://www.norbit.de
QGIS release manager (PSC)  Germany                 IRC: jef on Libera|OFTC

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