Fix retrieval of SQL type "TIME" information for PostgreSQL

PostgreSQL can store/retieve the millisecond part of type "TIME" , so
allow it in the API level.

Task-number: QTBUG-5251
Reviewed-by: Bill King

Author: Derick Hawcroft

src/sql/drivers/psql/qsql_psql.cpp

@@ -1133,7 +1133,7 @@ QString QPSQLDriver::formatValue(const QSqlField &field, bool trimStrings) const
         case QVariant::Time:
 #ifndef QT_NO_DATESTRING
             if (field.value().toTime().isValid()) {
-                r = QLatin1Char('\'') + field.value().toTime().toString(Qt::ISODate) + QLatin1Char('\'');
+                r = QLatin1Char('\'') + field.value().toTime().toString(QLatin1String("hh:mm:ss.zzz")) + QLatin1Char('\'');
             } else
 #endif
             {

tests/auto/qsqlquery/tst_qsqlquery.cpp

@@ -194,6 +194,8 @@ private slots:
     void sqlServerReturn0_data() { generic_data(); }
     void sqlServerReturn0();
 
+    void QTBUG_5251_data() { generic_data("QPSQL"); }
+    void QTBUG_5251();
 
 private:
     // returns all database connections
@@ -2880,5 +2882,35 @@ void tst_QSqlQuery::sqlServerReturn0()
     QVERIFY_SQL(q, next());
 }
 
+void tst_QSqlQuery::QTBUG_5251()
+{
+    QFETCH( QString, dbName );
+    QSqlDatabase db = QSqlDatabase::database( dbName );
+    CHECK_DATABASE( db );
+
+    if (!db.driverName().startsWith( "QPSQL" )) return;
+
+    QSqlQuery q(db);
+    q.exec("DROP TABLE " + qTableName("timetest"));
+    QVERIFY_SQL(q, exec("CREATE TABLE  " + qTableName("timetest") + " (t  TIME)"));
+    QVERIFY_SQL(q, exec("INSERT INTO " + qTableName("timetest") +  " VALUES ('1:2:3.666')"));
+
+    QSqlTableModel timetestModel(0,db);
+    timetestModel.setEditStrategy(QSqlTableModel::OnManualSubmit);
+    timetestModel.setTable(qTableName("timetest"));
+    QVERIFY_SQL(timetestModel, select());
+
+    QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"), QString("01:02:03.666"));
+    QVERIFY_SQL(timetestModel,setData(timetestModel.index(0, 0), QTime(0,12,34,500)));
+    QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"), QString("00:12:34.500"));
+    QVERIFY_SQL(timetestModel, submitAll());
+    QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"), QString("00:12:34.500"));
+
+    QVERIFY_SQL(q, exec("UPDATE " + qTableName("timetest") + " SET t = '0:11:22.33'"));
+    QVERIFY_SQL(timetestModel, select());
+    QCOMPARE(timetestModel.record(0).field(0).value().toTime().toString("HH:mm:ss.zzz"), QString("00:11:22.330"));
+
+}
+
 QTEST_MAIN( tst_QSqlQuery )
 #include "tst_qsqlquery.moc"