Better error reporting of problems during catalog load.

pglab/MainWindow.cpp

@@ -55,6 +55,7 @@ QueryTab *MainWindow::GetActiveQueryTab()
 void MainWindow::setConfig(const ConnectionConfig &config)
 {
 	m_config = config;
+	try	{
 		auto res = OpenDatabase::createOpenDatabase(config);
 		if (res.valid()) {
 			m_database = res.get();
@@ -69,6 +70,11 @@ void MainWindow::setConfig(const ConnectionConfig &config)
 		ui->tabWidget->setCurrentWidget(tt);
 
 		newSqlPage();
+	} catch (std::runtime_error &ex) {
+		QMessageBox msgBox;
+		msgBox.setText(QString::fromUtf8(ex.what()));
+		msgBox.exec();
+	}
 }
 
 void MainWindow::on_actionLoad_SQL_triggered()

pglab/PgDatabaseCatalog.cpp

@@ -109,8 +109,11 @@ void load(Pgsql::Connection &conn, IPgContainter &pg_cont)
 	Pgsql::Result result = conn.query(q.c_str());
 	if (result && result.resultStatus() == PGRES_TUPLES_OK)
 		pg_cont.load(result);
-	else
+	else {
-		throw std::runtime_error("Query failed");
+		auto details = result.diagDetails();
+
+		throw std::runtime_error("Query failed\n" + details.errorMessage);
+	}
 
 }