SQL/IBase: don't let open() fail when no timezones are available

When connecting to an old Firebird instence with a Qt Firebird plugin
linked against Firebird >= 4 the timezone table is not available and
therefore open() will fail. Therefore downgrade the non-existence of
this table to a qCInfo().

Fixes: QTBUG-125467
Change-Id: Iae6d110bc2a48b5b90ffb9cb38f3fba60f30770f
Reviewed-by: Axel Spoerl <[email protected]>
Reviewed-by: Andreas Bacher <[email protected]>

1 files changed, 4 insertions, 11 deletions

diff --git a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
index f6eed5e2270..9bfaeb2e922 100644
--- a/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
+++ b/src/plugins/sqldrivers/ibase/qsql_ibase.cpp
@@ -347,21 +347,14 @@ public:
         QSqlQuery qry(q->createResult());
         qry.setForwardOnly(true);
         qry.exec(QString("select * from RDB$TIME_ZONES"_L1));
-        if (qry.lastError().type()) {
-            q->setLastError(QSqlError(
-                                QCoreApplication::translate("QIBaseDriver",
-                                    "failed to query time zone mapping from system table"),
-                                qry.lastError().databaseText(),
-                                QSqlError::StatementError,
-                                qry.lastError().nativeErrorCode()));
-
+        if (qry.lastError().isValid()) {
+            qCInfo(lcIbase) << "Table 'RDB$TIME_ZONES' not found - not timezone support available";
             return;
         }
 
         while (qry.next()) {
-            auto record = qry.record();
-            quint16 fbTzId = record.value(0).value<quint16>();
-            QByteArray ianaId = record.value(1).toByteArray().simplified();
+            quint16 fbTzId = qry.value(0).value<quint16>();
+            QByteArray ianaId = qry.value(1).toByteArray().simplified();
             qFbTzIdToIanaIdMap()->insert(fbTzId, ianaId);
             qIanaIdToFbTzIdMap()->insert(ianaId, fbTzId);
         }