[bugfix][postgresql] Fix crashes on featureCount()

Fixes #17388 Backported from master fe56531
qgis · Nov 10, 2017 · 269038efb43dd9c0421c1e52d502fb08387758ae · 269038e
1 parent f80a705
commit 269038efb43dd9c0421c1e52d502fb08387758ae
Unified Split

Showing with 6 additions and 0 deletions.

+6 −0 src/providers/postgres/qgspostgresprovider.cpp
diff --git a/src/providers/postgres/qgspostgresprovider.cpp b/src/providers/postgres/qgspostgresprovider.cpp
@@ -2923,6 +2923,12 @@ long QgsPostgresProvider::featureCount() const
   if ( featuresCounted >= 0 )
     return featuresCounted;
 
+  // See: https://issues.qgis.org/issues/17388 - QGIS crashes on featureCount())
+  if ( ! connectionRO() )
+  {
+    return 0;
+  }
+
   // get total number of features
   QString sql;