[Qgis-developer] [QGIS Server] How to share QgsPostgresSharedData between multiple QGIS instances

[René-Luc Dhont]

Hi devs,

Do you have an idea  on a way to share a QgsPostgresSharedData between 
multiple QGIS instances ?

The use case is for QGIS Server to manage a PostGIS layer with a text 
primary key with WFS-T.
QgsPostgresSharedData is used to map int4 featureId with non integer 
primary key. It is usefull for QGIS Desktop. But server side, if 
multiple QGIS Server instances is used with 1 project, for performance, 
each QGIS Server has it's own QgsPostgresSharedData.
I'd like to share it between multiple instances tohav the same feature 
ids for same primary key.

Regards,
René-Luc D'Hont