Josh Berkus wrote:
> Tom,
>
> > They've been broken on a fairly regular basis in past releases.
> > Certainly 7.3 broke every single one because of the addition of
> > schema syntax ...
>
> Yeah, and we warned people about it, as I recall. Also, we had about 25x
> less users then. I think we should put something in the release notes:
>
> WARNING: 8.1's "psql" is not completely backwards-compatible with previous
> versions of PostgreSQL.
Here is a patch that will print out (in interactive mode only) a warning
message if a newer client connects to an older major numbered server.
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073
Index: src/bin/psql/startup.c
===================================================================
RCS file: /cvsroot/pgsql/src/bin/psql/startup.c,v
retrieving revision 1.120
diff -c -c -r1.120 startup.c
*** src/bin/psql/startup.c 25 Jul 2005 17:17:41 -0000 1.120
--- src/bin/psql/startup.c 31 Aug 2005 02:19:12 -0000
***************
*** 8,13 ****
--- 8,14 ----
#include "postgres_fe.h"
#include <sys/types.h>
+ #include <math.h>
#ifndef WIN32
#include <unistd.h>
***************
*** 312,317 ****
--- 313,325 ----
if (!QUIET() && !pset.notty)
{
+ if (pset.sversion / 100 < atoi(PG_VERSION) * 100 +
+ (strchr(PG_VERSION, '.')[1] - '0'))
+ printf(_("You are connected to a server with an earlier major version\n"
+ "than your %s client. Informational backslash commands, like \\d,\n"
+ "might not work properly.\n\n"),
+ pset.progname);
+
printf(_("Welcome to %s %s, the PostgreSQL interactive terminal.\n\n"
"Type: \\copyright for distribution terms\n"
" \\h for help with SQL commands\n"