pg_get_result() hangs for query length > 65535

I have a script running on PHP v4.3.6 (cgi) that hangs forever
in a call to the Postgres pg_get_result() function when and only
when the query length is 65536 or more bytes.

The query is a simple INSERT, of a single ASCII value into a
'text' type field, and works fine for shorter queries.

(As the code first calls pg_escape_string() on the value to be
inserted, I'm sure the problem doesn't relate to bad characters
in the data.)

Anyone have any ideas? My impression is that few PHP coders use
pg_send_query() and pg_get_result(), despite this being the only
way (AFAIK) of getting specific error codes/text when something
goes wrong (in which event pg_query() just returns false).

The following is an extract from the offending code:

   if      ($db_type == 'mysql')
   {
      $qry_id = @mysql_query ($x_qry, $x_db_conn);

      $g_db_err_no  = mysql_errno ();
      $g_db_err_str = mysql_error ();
   }

   else if ($db_type == 'postgres')
   {
     # Because pg_query() returns FALSE if the query fails, one must must
     # use pg_send_query() and pg_get_result() to get the result handle.
     #
     # $qry_id = @pg_query ($x_db_conn, $x_qry);
     #
      if (! pg_send_query ($x_db_conn, $x_qry))
      {
         die ("pg_send_query");
      }


!!!!!!!! QUERY OF LENGTH 64K OR MORE HANGS IN FOLLOWING pg_get_result() CALL


      if (! ($qry_id = pg_get_result ($x_db_conn)))
      {
         die ("pg_get_result");
      }

# jr.debug
 error_log (" past pg_get_result()!\n", 3, '/tmp/hack.log');

     # pg_result_error(), available from PHP v4.2.0+, like pg_result_status(),
     # returns a better result then pg_last_error(), as the latter may be set
     # by all kinds of internal calls and thus not reflect the app-level error.
     #
      $g_db_err_no  = pg_result_status ($qry_id);
      $g_db_err_str = pg_result_error ($qry_id);
   }

   else if ($db_type == 'mssql')
   {

     :::



Cheers

John R Ramsden  (john_ramsden@sagitta-ps.cam)  <-- com not cam