[FEATURE] postgres provider: optionally skip columns without geometry type constraint

src/providers/postgres/qgspgnewconnection.cpp

@@ -52,6 +52,7 @@ QgsPgNewConnection::QgsPgNewConnection( QWidget *parent, const QString& connName
     txtDatabase->setText( settings.value( key + "/database" ).toString() );
     cb_publicSchemaOnly->setChecked( settings.value( key + "/publicOnly", false ).toBool() );
     cb_geometryColumnsOnly->setChecked( settings.value( key + "/geometryColumnsOnly", true ).toBool() );
+    cb_dontResolveType->setChecked( settings.value( key + "/dontResolveType", false ).toBool() );
     cb_allowGeometrylessTables->setChecked( settings.value( key + "/allowGeometrylessTables", false ).toBool() );
     // Ensure that cb_publicSchemaOnly is set correctly
     on_cb_geometryColumnsOnly_clicked();
@@ -131,6 +132,7 @@ void QgsPgNewConnection::accept()
   settings.setValue( baseKey + "/password", chkStorePassword->isChecked() ? txtPassword->text() : "" );
   settings.setValue( baseKey + "/publicOnly", cb_publicSchemaOnly->isChecked() );
   settings.setValue( baseKey + "/geometryColumnsOnly", cb_geometryColumnsOnly->isChecked() );
+  settings.setValue( baseKey + "/dontResolveType", cb_dontResolveType->isChecked() );
   settings.setValue( baseKey + "/allowGeometrylessTables", cb_allowGeometrylessTables->isChecked() );
   settings.setValue( baseKey + "/sslmode", cbxSSLmode->itemData( cbxSSLmode->currentIndex() ).toInt() );
   settings.setValue( baseKey + "/saveUsername", chkStoreUsername->isChecked() ? "true" : "false" );

src/providers/postgres/qgspgsourceselect.cpp

@@ -444,6 +444,7 @@ void QgsPgSourceSelect::on_btnConnect_clicked()
 
     bool searchPublicOnly = QgsPostgresConn::publicSchemaOnly( cmbConnections->currentText() );
     bool searchGeometryColumnsOnly = QgsPostgresConn::geometryColumnsOnly( cmbConnections->currentText() );
+    bool dontResolveType = QgsPostgresConn::dontResolveType( cmbConnections->currentText() );
     bool allowGeometrylessTables = cbxAllowGeometrylessTables->isChecked();
 
     QVector<QgsPostgresLayerProperty> layers;
@@ -458,6 +459,12 @@ void QgsPgSourceSelect::on_btnConnect_clicked()
         {
           if ( QgsPostgresConn::wkbTypeFromPostgis( type ) == QGis::WKBUnknown || srid.isEmpty() )
           {
+            if ( dontResolveType )
+            {
+              QgsDebugMsg( QString( "skipping column %1.%2 without type constraint" ).arg( layer.schemaName ).arg( layer.tableName ) );
+              continue;
+            }
+
             addSearchGeometryColumn( layer );
             type = "";
             srid = "";

src/providers/postgres/qgspostgresconn.cpp

@@ -1484,6 +1484,13 @@ bool QgsPostgresConn::geometryColumnsOnly( QString theConnName )
   return settings.value( "/PostgreSQL/connections/" + theConnName + "/geometryColumnsOnly", false ).toBool();
 }
 
+bool QgsPostgresConn::dontResolveType( QString theConnName )
+{
+  QSettings settings;
+
+  return settings.value( "/PostgreSQL/connections/" + theConnName + "/dontResolveType", false ).toBool();
+}
+
 bool QgsPostgresConn::allowGeometrylessTables( QString theConnName )
 {
   QSettings settings;

src/providers/postgres/qgspostgresconn.h

@@ -195,6 +195,7 @@ class QgsPostgresConn : public QObject
     static QgsDataSourceURI connUri( QString theConnName );
     static bool publicSchemaOnly( QString theConnName );
     static bool geometryColumnsOnly( QString theConnName );
+    static bool dontResolveType( QString theConnName );
     static bool allowGeometrylessTables( QString theConnName );
     static void deleteConnection( QString theConnName );
 

src/providers/postgres/qgspostgresdataitems.cpp

@@ -100,6 +100,8 @@ QVector<QgsDataItem*> QgsPGConnectionItem::createChildren()
 
   stop();
 
+  bool dontResolveType = QgsPostgresConn::dontResolveType( mName );
+
   foreach ( QgsPostgresLayerProperty layerProperty, layerProperties )
   {
     QgsPGSchemaItem *schemaItem = mSchemaMap.value( layerProperty.schemaName, 0 );
@@ -112,6 +114,12 @@ QVector<QgsDataItem*> QgsPGConnectionItem::createChildren()
 
     if ( QgsPostgresConn::wkbTypeFromPostgis( layerProperty.type ) == QGis::WKBUnknown )
     {
+      if ( !dontResolveType )
+      {
+        QgsDebugMsg( QString( "Skip column %1.%2 without type constraint" ).arg( layerProperty.schemaName ).arg( layerProperty.tableName ).arg( layerProperty.geometryColName ) );
+        continue;
+      }
+
       if ( !mColumnTypeThread )
       {
         QgsPostgresConn *conn = QgsPostgresConn::connectDb( uri.connectionInfo(), true /* readonly */ );

src/ui/qgspgnewconnectionbase.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>352</width>
-    <height>500</height>
+    <width>408</width>
+    <height>556</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -203,7 +203,7 @@
         </property>
        </widget>
       </item>
-      <item row="3" column="0">
+      <item row="4" column="0">
        <widget class="QCheckBox" name="cb_publicSchemaOnly">
         <property name="toolTip">
          <string>Restrict the search to the public schema for spatial tables not in the geometry_columns table</string>
@@ -244,7 +244,7 @@
         </item>
        </layout>
       </item>
-      <item row="5" column="0">
+      <item row="6" column="0">
        <widget class="QCheckBox" name="cb_useEstimatedMetadata">
         <property name="toolTip">
          <string>Use estimated table statistics for the layer metadata.</string>
@@ -265,7 +265,7 @@
         </property>
        </widget>
       </item>
-      <item row="4" column="0">
+      <item row="5" column="0">
        <widget class="QCheckBox" name="cb_allowGeometrylessTables">
         <property name="text">
          <string>Also list tables with no geometry</string>
@@ -275,6 +275,19 @@
         </property>
        </widget>
       </item>
+      <item row="3" column="0">
+       <widget class="QCheckBox" name="cb_dontResolveType">
+        <property name="toolTip">
+         <string>Restrict the displayed tables to those that are in the layer registries.</string>
+        </property>
+        <property name="whatsThis">
+         <string>Restricts the displayed tables to those that are found in the layer registries (geometry_columns, geography_columns, topology.layer). This can speed up the initial display of spatial tables.</string>
+        </property>
+        <property name="text">
+         <string>Don't resolve type of unrestricted columns (GEOMETRY)</string>
+        </property>
+       </widget>
+      </item>
      </layout>
     </widget>
    </item>