From 65c3d9f2b4075f70bf314a9a9a0b93f101f35b4a Mon Sep 17 00:00:00 2001
From: eelke <eelke@eelkeklein.nl>
Date: Sat, 21 Apr 2018 10:23:28 +0200
Subject: [PATCH] getTypeDisplayString now better handles zero oid's and oid's
 that are not known in the catalog.

Close #10
---
 pglablib/PgDatabaseCatalog.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pglablib/PgDatabaseCatalog.cpp b/pglablib/PgDatabaseCatalog.cpp
index ab012f5..10e0903 100644
--- a/pglablib/PgDatabaseCatalog.cpp
+++ b/pglablib/PgDatabaseCatalog.cpp
@@ -75,8 +75,15 @@ QString getTablespaceDisplayString(const PgDatabaseCatalog &cat, Oid oid)
 
 QString getTypeDisplayString(const PgDatabaseCatalog &cat, Oid oid, int32_t typmod)
 {
+	if (oid == 0) {
+		return QString();
+	}
+
 	auto tc = cat.types();
 	auto t = tc->getByKey(oid);
+	if (t.oid == InvalidOid) {
+		return "(invalid/unknown)";
+	}
 	QString s;
 	if (t.category == TypCategory::Array) {
 //		auto et = tc->getByKey(t.elem);