Hi Tim and Raymond,
Perhaps I'd explain a little more:
The QGis database tool (as Tim suggests) converts my QGis layer
"myLayer" (= a postgis table "myTable" with a QGis filter ("myFilter"
applied to it) to a new postgis *table*
I was hoping to find an (automated!) way to convert the layer to a new
postgis *view*, something like:
create or replace view "myView"
as select "myFilter"
from "myTable"
Kind regards,
Gert-Jan
tim dunlevie via Qgis-user schreef op 28-04-2022 14:48:
You can also use the QGIS database tool from the menu...to get to the
SQL query gui...construct your query through that - add table, add a
condition (where blah = blah)...then you have the ability to create a
view in the postgis database.....rather than writing sql query using
pgadmin etc...
On Thu, 28 Apr 2022, 8:38 pm Raymond Nijssen via Qgis-user,
<qgis-user@lists.osgeo.org> wrote:
Hi Gert-Jan,
Not sure how exactly you are filtering your data, but to create
views
you can run these queries on your PostgreSQL database using the tool
you
like (for example DB-manager in QGIS, or DBeaver or PGAdmin).
In case this is an SQL query filter:
CREATE VIEW blabla1 AS
[your sql select query goes here]
In case it's a 'provider object filter' (in the Source tab of your
layer
properties):
CREATE VIEW view_name AS
SELECT * FROM table_name WHERE
[your filter goes here]
Hope this helps,
Raymond
On 28-04-2022 14:09, gisnederland via Qgis-user wrote:
Hi all,
I've got a QGis (3.20) project with (amongst others) 15 layers
that all
point to 1 postgis table, but all have a different filter applied
(in
QGis).
I'm looking for a convenient way to convert these
layers-with-filter to
views in PostGIS, in which the SQL "select"-statement matches the
QGis
filter expression.
Any way to do this in QGis, or with other tooling?
Kind regards,
Gert-Jan
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