diff -r b72c6db6890b -r 5dc02b23752f tools/assistant/lib/qhelpcollectionhandler.cpp
--- a/tools/assistant/lib/qhelpcollectionhandler.cpp	Wed Jun 23 19:07:03 2010 +0300
+++ b/tools/assistant/lib/qhelpcollectionhandler.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -114,6 +114,9 @@
         return false;
     }
 
+    m_query.exec(QLatin1String("PRAGMA synchronous=OFF"));
+    m_query.exec(QLatin1String("PRAGMA cache_size=3000"));
+
     m_query.exec(QLatin1String("SELECT COUNT(*) FROM sqlite_master WHERE TYPE=\'table\'"
                                "AND Name=\'NamespaceTable\'"));
     m_query.next();
@@ -163,6 +166,9 @@
         return false;
     }
 
+    copyQuery->exec(QLatin1String("PRAGMA synchronous=OFF"));
+    copyQuery->exec(QLatin1String("PRAGMA cache_size=3000"));
+
     if (!createTables(copyQuery)) {
         emit error(tr("Cannot copy collection file: %1").arg(colFile));
         return false;
@@ -308,10 +314,8 @@
     m_query.prepare(QLatin1String("SELECT Id FROM FilterNameTable WHERE Name=?"));
     m_query.bindValue(0, filterName);
     m_query.exec();
-    while (m_query.next()) {
+    if (m_query.next())
         nameId = m_query.value(0).toInt();
-        break;
-    }
 
     m_query.exec(QLatin1String("SELECT Id, Name FROM FilterAttributeTable"));
     QStringList idsToInsert = attributes;
@@ -584,6 +588,8 @@
         }
 
         QSqlQuery query(db);
+        db.exec(QLatin1String("PRAGMA synchronous=OFF"));
+        db.exec(QLatin1String("PRAGMA cache_size=3000"));
         db.exec(QLatin1String("CREATE INDEX IF NOT EXISTS NameIndex ON IndexTable(Name)"));
         db.exec(QLatin1String("CREATE INDEX IF NOT EXISTS FileNameIndex ON FileNameTable(Name)"));
         db.exec(QLatin1String("CREATE INDEX IF NOT EXISTS FileIdIndex ON FileNameTable(FileId)"));