Fix incorrect placeholder name in example.

diff --git a/doc/src/sgml/libpq.sgml b/doc/src/sgml/libpq.sgml
index faf40a8e13ca056eb9d1995528c6fc4be7be3a32..a3d3a1a14ac31c1a76a9e1b48916a849e00f48d7 100644 (file)
--- a/doc/src/sgml/libpq.sgml
+++ b/doc/src/sgml/libpq.sgml
@@ -1,5 +1,5 @@
 
 
  
@@ -879,7 +879,7 @@ int PQfnumber(const PGresult *res,
           at 0.
 
 Oid PQftype(const PGresult *res,
-            int field_num);
+            int field_index);
 
 You can query the system table pg_type to obtain
 the name and properties of the various datatypes. The OIDs