[Qgis-developer] Post-processing queries on postgis layers (after insert/delete/update)

[Jürgen E. Fischer]

Hi Olivier,

On Wed, 18. Mar 2015 at 18:40:20 +0100, Olivier Dalang wrote:
> Am I doing something wrong ?

Not really - just something that isn't expected.

> Or is QGIS using some other way to get back the ID of a new feature ? Any
> idea of what that could be ?

It retrieves the default values for all attributes (which might be a call to
nextval), executes them and uses the result for the insert.  So it knows
the id before the insert and can update the feature with it.


Jürgen

-- 
Jürgen E. Fischer           norBIT GmbH             Tel. +49-4931-918175-31
Dipl.-Inf. (FH)             Rheinstraße 13          Fax. +49-4931-918175-50
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QGIS release manager (PSC)  Germany                    IRC: jef on FreeNode                         
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