commit f7bf081598dd58667751df0c1a3b601e095e6dfb
Author: Andras Mantia <amantia@kde.org>
Date:   Wed Jul 24 12:48:05 2013 +0300

    Fix (again) Akonadi for PostgreSql.
    (cherry picked from commit 5b606c460834d63cf2953137748b66834c9ddb55)

diff --git a/server/src/storage/datastore.cpp b/server/src/storage/datastore.cpp
index 553d963..41a0927 100644
--- a/server/src/storage/datastore.cpp
+++ b/server/src/storage/datastore.cpp
@@ -238,6 +238,7 @@ bool DataStore::doAppendItemsFlag( const PimItem::List &items, const Flag &flag,
   QueryBuilder qb2( PimItemFlagRelation::tableName(), QueryBuilder::Insert );
   qb2.setColumnValue( PimItemFlagRelation::leftColumn(), appendIds );
   qb2.setColumnValue( PimItemFlagRelation::rightColumn(), flagIds );
+  qb2.setIdentificationColumn( QString() );
   if ( !qb2.exec() ) {
     akDebug() << "Failed to execute query:" << qb2.query().lastError();
     return false;