postgres provider: set length and precision of native floating point types to -1 (fixes #8145)

Author: jef-n

src/core/qgsvectorlayereditbuffer.cpp

@@ -412,6 +412,10 @@ bool QgsVectorLayerEditBuffer::commitChanges( QStringList& commitErrors )
       }
     }
   }
+  else
+  {
+    success = false;
+  }
 
   //
   // update geometries

src/providers/postgres/qgspostgresprovider.cpp

@@ -164,8 +164,8 @@ QgsPostgresProvider::QgsPostgresProvider( QString const & uri )
   << QgsVectorDataProvider::NativeType( tr( "Decimal number (decimal)" ), "decimal", QVariant::Double, 1, 20, 0, 20 )
 
   // floating point
-  << QgsVectorDataProvider::NativeType( tr( "Decimal number (real)" ), "real", QVariant::Double )
-  << QgsVectorDataProvider::NativeType( tr( "Decimal number (double)" ), "double precision", QVariant::Double )
+  << QgsVectorDataProvider::NativeType( tr( "Decimal number (real)" ), "real", QVariant::Double, -1, -1, -1, -1 )
+  << QgsVectorDataProvider::NativeType( tr( "Decimal number (double)" ), "double precision", QVariant::Double, -1, -1, -1, -1 )
 
   // string types
   << QgsVectorDataProvider::NativeType( tr( "Text, fixed length (char)" ), "char", QVariant::String, 1, 255 )