--- qtbase/src/sql/drivers/psql/qsql_psql.cpp	2015-07-01 16:39:36.716687389 +0200
+++ qtbase/src/sql/drivers/psql/qsql_psql_fixed.cpp	2015-07-01 14:15:56.077168431 +0200
@@ -1197,7 +1197,7 @@
             }
             QString defVal = query.value(5).toString();
             if (!defVal.isEmpty() && defVal.at(0) == QLatin1Char('\''))
-                defVal = defVal.mid(1, defVal.length() - 2);
+                defVal = defVal.mid(1, defVal.lastIndexOf(QLatin1Char('\'')) - 1);
             QSqlField f(query.value(0).toString(), qDecodePSQLType(query.value(1).toInt()));
             f.setRequired(query.value(2).toBool());
             f.setLength(len);
@@ -1217,7 +1217,7 @@
             if (query2.isActive() && query2.next())
                 defVal = query2.value(0).toString();
             if (!defVal.isEmpty() && defVal.at(0) == QLatin1Char('\''))
-                defVal = defVal.mid(1, defVal.length() - 2);
+                defVal = defVal.mid(1, defVal.lastIndexOf(QLatin1Char('\'')) - 1);
             int len = query.value(3).toInt();
             int precision = query.value(4).toInt();
             // swap length and precision if length == -1