diff -r 56cd8111b7f7 -r 41300fa6a67c src/sql/models/qsqltablemodel.cpp
--- a/src/sql/models/qsqltablemodel.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/sql/models/qsqltablemodel.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -406,7 +406,7 @@
     QSqlQuery qu(query, d->db);
     setQuery(qu);
 
-    if (!qu.isActive()) {
+    if (!qu.isActive() || lastError().isValid()) {
         // something went wrong - revert to non-select state
         d->initRecordAndPrimaryIndex();
         return false;