From 0548dda6662293308bd31f1c1db0f81467f36e16 Mon Sep 17 00:00:00 2001
From: Pierre Pronchery <khorben@defora.org>
Date: Thu, 29 Nov 2012 21:09:11 +0100
Subject: [PATCH] Allow DT_VARCHAR values to be NULL

---
 src/engines/pgsql.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engines/pgsql.c b/src/engines/pgsql.c
index 6eaaa89..7669beb 100644
--- a/src/engines/pgsql.c
+++ b/src/engines/pgsql.c
@@ -273,7 +273,7 @@ static int _pgsql_prepare_query(PgSQL * pgsql, PgSQLStatement * statement,
 				break;
 			case DT_VARCHAR:
 				s = va_arg(args, char const *);
-				v[cnt] = strdup(s);
+				v[cnt] = (s != NULL) ? strdup(s) : NULL;
 				break;
 			default:
 				errno = ENOSYS;