Am 05.10.25 um 20:18 schrieb celati Laurent via QGIS-User:
> I work with Windows with Qgis 3.34.13-Prizren. > I have a Qgis project destined to be shipped on a tablet for the field > (Qfield). > The project contains a polygonal layer of 3427 objects (file shp). There> are many columns with different types. There also relational values / joins
> setted for this form. So the project also includes .csv files (for > relational values).Have you tried putting all the data into a database? For example a single geopackage file? Reading CSV is slower than from SQLite. Geopackage is an SQLite database.
> The problem : the opening of this table attribute takes up to 40 seconds. I
> spent time to identify where the problem may come from. At one time I> thought for joins/relational values. Or also CSV format. As we can see here
> :> https://gis.stackexchange.com/questions/423054/what-is-slowing-qgis-the-most-when-opening-form
> > After several hours of investigation, the source of the problem seems to> come from 4 columns (string) for strore the pictures. After removing those
> 4 columns of the form, the opening time of the table become normal.> I have tried to "play" with the parameter for this form attached tool, (as > for example relative/absolute path size of the images, etc.). But in vain. Are you storing the picture in a separate table? For pictures, this is the approach QField recommends: https://docs.qfield.org/how-to/pictures/
-- Tobias A Schula Forestry Expert [email protected]
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