Also rename pktInt64 to pktUint64, in case we'll be able to know
in advance the database contains only positive integers (not
implemented in this commit).
Can currently be triggered by using the field calculator to update a selection.
While an iterator is active and the connection is locked, an update statement
waits unsuccessfully for the same (locked) connection.
This commit only locks the connection while an iterator is actually fetching
data and not for its entire lifetime.
subsets of attributes and the filter expression requires fields
which are not included in the attribute subset
Note: I've only fixed the providers which implement the vector
provider conformance unit tests. Other providers (eg GRASS) should
also implement a similar fix.
This check tests that if a function has been declared deprecated
with either Q_DECL_DEPRECATED or has a @deprecated Doxygen note
then it MUST have both the Q_DECL_DEPRECATD and @deprecated note.
It's important that both are used, as Q_DECL_DEPRECATED allows
throwing a warning if that method is used in code, while the
@deprecated doxygen note gives an indication to devs/PyQGIS users
of why it's deprecated and what should be used instead.
Ideally we'd also test for SIP /Deprecated/ tags, but I can't
find any reliable way to do this.
Limits the maximum number of features returned by the iterator.
Some providers (postgres, spatialite, MS SQL) pass the limit on
to the provider to result in faster queries.
Switch Postgres and OGR compilers to use the new base class. New class
should make it easier to add additional expression compilers (eg
spatialite, MS SQL, etc)
QString methods
Using single quotes is a significant performance boost. Rough
benchmarks indicate the QString single quote methods take
about 15% of the time the double quote variants take.
The postgres provider is modified so that layers with
TIN, PolyhedralSurface and Triangle geometries can be loaded.
Geometries are converted to MultiPolygons (and Polygons for Triangles).
The postgres test is completed to cover the loading of different types
of layers
Some warnings are wrapped in Q_NOWARN_DEPRECATED_*, these are warnings for
issues which are not critical and therefore of limited importance.
The general idea is to leave the space for compiler warnings to the one that
really need to be addressed.
Also removes a no longer required header file of dxflib.
Exposes some ready-to use doxymentation by wrapping it in appropriate comment
structure.
And some more cleanup
This commit allows to filter features already on server side. Only supported
expressions will be sent to the database. Expressions using unsupported
operators or functions will gracefully fallback to local evaluation.
To make use of this feature
* Enable it in options: data sources
* QgsFeatureRequest().setFilterExpression( expression )
* or QgsVectorLayer::getFeatures( expression )
