From 56c25c1fac02bceac4f46625df95a26cfcced1a4 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 21 Jan 2015 09:54:59 +0200
Subject: Make error translation more robust

---
 odb/pgsql/error.cxx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/odb/pgsql/error.cxx b/odb/pgsql/error.cxx
index c7a7833..9e56ee2 100644
--- a/odb/pgsql/error.cxx
+++ b/odb/pgsql/error.cxx
@@ -51,7 +51,11 @@ namespace odb
         }
       case PGRES_FATAL_ERROR:
         {
-          string ss (PQresultErrorField (r, PG_DIAG_SQLSTATE));
+          string ss;
+          {
+            const char* s (PQresultErrorField (r, PG_DIAG_SQLSTATE));
+            ss = (s != 0 ? s : "?????");
+          }
 
           // Deadlock detected.
           //
-- 
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