By default, those expression use the application's locale. The addition of an optional
language parameter allows handling of dates that wouldn't match that default
locale (say for e.g. an English system running QGIS trying to transform a
French-formatted string into a date object).
Adds geom_from_wkb and geom_to_wkb, which mirror the existing
geom_from_wkt/geom_to_wkt functions but for WKB representations
of geometries.
Since QGIS 3.6 we've had good support for binary blob values in
expressions and field values, so adding these functions allows
users to work with binary blob fields containing WKB representations
of geometries (e.g. with a geometry generator showing the encoded
geometries)
a layer is loaded which has no CRS
This is the new default behavior. It effectively defers the choice of CRS
from layer loading time to a later time which is convenient for users. E.g.
it no longer asks for CRS choice 100x when loading 100 files into QGIS at once.
(Effectively an application crash/hang... no one will sit through these 100 dialogs!)
The new behavior means there's no prompt (by default!) when loading these layers,
and instead the layers will be shown in the layer tree with an "unknown CRS"
indicator icon. They'll also be un-referenced, with coordinates from the layer
treated as purely numerically, non-earth values. I.e. the same behavior
as all layers get when a project is set to have no CRS.
The user can then resolve these in their own time, and by using convenient
shortcuts like highlighting multiple layers at once and then setting the CRS
for all these in a single action.
Fixes#19762, #27634, #24815 (and probably others)
A reminder for me (from geoserver docs)
The WMS 1.3.0 specification mandates that the axis ordering for geographic coordinate systems defined in the EPSG database be latitude/longitude, or y/x. This is contrary to the fact that most spatial data is usually in longitude/latitude, or x/y. This requires that the coordinate order in the BBOX parameter be reversed for SRS values which are geographic coordinate systems.
