1 files changed, 3 insertions, 0 deletions

diff --git a/src/pq/pq_result_helper.c b/src/pq/pq_result_helper.c
index 78a375060..180c5fc18 100644
--- a/src/pq/pq_result_helper.c
+++ b/src/pq/pq_result_helper.c
@@ -70,6 +70,9 @@ extract_varsize_blob (void *cls,
   void *idst;
   int fnum;
 
+  *dst_size = 0;
+  *((void **) dst) = NULL;
+
   fnum = PQfnumber (result,
                     fname);
   if (fnum < 0)