From 0d7204cd851af77db342c626a7a07684e3185cca Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias.kuhn@gmx.ch>
Date: Fri, 14 Mar 2014 20:53:10 +0100
Subject: [PATCH] [spatialite] Update layer statistics after adding new columns
 Fix #8923

---
 cmake/FindSPATIALITE.cmake                         |  1 +
 src/providers/spatialite/CMakeLists.txt            |  3 +++
 src/providers/spatialite/qgsspatialiteprovider.cpp | 10 ++++++++++
 3 files changed, 14 insertions(+)

diff --git a/cmake/FindSPATIALITE.cmake b/cmake/FindSPATIALITE.cmake
index 697b617a55e..a35926738df 100644
--- a/cmake/FindSPATIALITE.cmake
+++ b/cmake/FindSPATIALITE.cmake
@@ -69,6 +69,7 @@ IF (SPATIALITE_FOUND)
        SET(CMAKE_REQUIRED_LIBRARIES "-F/Library/Frameworks" ${CMAKE_REQUIRED_LIBRARIES})
    ENDIF(APPLE)
    check_library_exists("${SPATIALITE_LIBRARY}" gaiaDropTable "" SPATIALITE_VERSION_GE_4_0_0)
+   check_library_exists("${SPATIALITE_LIBRARY}" gaiaStatisticsInvalidate "" SPATIALITE_VERSION_G_4_1_1)
 
 ELSE (SPATIALITE_FOUND)
 
diff --git a/src/providers/spatialite/CMakeLists.txt b/src/providers/spatialite/CMakeLists.txt
index 60baf54de5e..0df0a45d7a9 100644
--- a/src/providers/spatialite/CMakeLists.txt
+++ b/src/providers/spatialite/CMakeLists.txt
@@ -33,6 +33,9 @@ QT4_WRAP_CPP(SPATIALITE_MOC_SRCS ${SPATIALITE_MOC_HDRS})
 IF(SPATIALITE_VERSION_GE_4_0_0)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DSPATIALITE_VERSION_GE_4_0_0")
 ENDIF(SPATIALITE_VERSION_GE_4_0_0)
+IF(SPATIALITE_VERSION_G_4_1_1)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DSPATIALITE_VERSION_G_4_1_1")
+ENDIF(SPATIALITE_VERSION_G_4_1_1)
 
 
 INCLUDE_DIRECTORIES(
diff --git a/src/providers/spatialite/qgsspatialiteprovider.cpp b/src/providers/spatialite/qgsspatialiteprovider.cpp
index ed8522013d4..d10a8ad5fae 100644
--- a/src/providers/spatialite/qgsspatialiteprovider.cpp
+++ b/src/providers/spatialite/qgsspatialiteprovider.cpp
@@ -3825,6 +3825,16 @@ bool QgsSpatiaLiteProvider::addAttributes( const QList<QgsField> &attributes )
     // some error occurred
     goto abort;
   }
+#ifdef SPATIALITE_VERSION_GE_4_0_0
+  sql = QString( "UPDATE geometry_columns_statistics set last_verified = 0 WHERE f_table_name=\"%1\" AND f_geometry_column=\"%2\";" )
+        .arg( mTableName )
+        .arg( mGeometryColumn );
+  ret = sqlite3_exec( sqliteHandle, sql.toUtf8().constData(), NULL, NULL, &errMsg );
+  update_layer_statistics( sqliteHandle, mTableName.toUtf8().constData(), mGeometryColumn.toUtf8().constData() );
+#elif SPATIALITE_VERSION_G_4_1_1
+  gaiaStatisticsInvalidate( sqliteHandle, tableName.toUtf8().constData(), mGeometryColumn.toUtf8().constData() );
+  update_layer_statistics( sqliteHandle, mTableName.toUtf8().constData(), mGeometryColumn.toUtf8().constData() );
+#endif
 
   // reload columns
   loadFields();