to a specific schema
This allows a schema to be set in the connection properties for
an oracle db connection. If set, only tables within that schema
will be scanned and listed for the connection.
Previously the option existed to restrict the scan to tables
which belong to the user, but this option does not support
the use case where a connection must access tables from a different
user, and the default "scan everything" setting is too expensive
(since it often takes multiple minutes to perform, especially
when geometryless tables are shown).
Sponsored by Open Spatial (http://www.openspatial.com)
In the algorithm execution dialog, this adds buttons to allow
users to save the current log (to text or HTML files), copy the
log contents to the clipboard, and clear the log.
This is a subclass of QgsProcessingParameterNumber, but specifically
for numeric parameters which represent distances. It is linked
to a parent parameter, from which the distance unit will
be determined, and is shown using a dedicated distance widget
within the processing parameters panel. This widget shows
the distance unit.
This avoids the confusion when running algorithms which
use distances where the unit depends on a layer or CRS parameter -
e.g. the distance parameter in the buffer algorithm gives
the distance in layer units... so now we can show those units
directly within the dialog. Hopefully this leads to less
user confusion and accidental "1000 degree buffers"!
Additionally - if the unit is in degrees, a small warning
icon is shown next to the parameter. The tooltip for this
icon advises users to reproject data into a suitable
projected local coordinate system.
Initially implemented for the native buffer and single
sided buffer algorithm only - but more will be added.
Fixes#16290
