I'm using libpgtcl with PostgreSQL-7.2.3. There is a discrepancy between

bmomjian · bmomjian · commit 02608cbce6dc · 2002-11-08T04:56:40.000Z
the documentation and behavior of "pg_result $res -oid" when $res is not
from an INSERT.  The documentation says it should return an empty
string, but in fact it returns 0. I think it used to return an empty
string around PostgreSQL-7.1.3 when PQoidStatus() was used, but now it
uses PQoidValue() which returns InvalidOid, 0 in this case.

Assuming the current behavior is desired, here is a patch to the
documentation doc/src/sgml/libpgtcl.sgml to match what really happens:


ljb
diff --git a/doc/src/sgml/libpgtcl.sgml b/doc/src/sgml/libpgtcl.sgml
@@ -712,7 +712,7 @@ the connection that produced the result.
 <LISTITEM>
 <PARA>
 if the command was an INSERT, the OID of the 
-inserted tuple; otherwise an empty string.
+inserted tuple; otherwise 0.
 </PARA>
 </LISTITEM>
 </VARLISTENTRY>
