From: Magnus Hagander <magnus@hagander.net>
Date: Thu, 10 May 2012 07:11:38 +0000 (+0200)
Subject: Only attempt to show collations on servers >= 9.1.
X-Git-Tag: bdr/0.1~1332
X-Git-Url: http://git.postgresql.org/gitweb/backend_dirs.html?a=commitdiff_plain;h=f33c5d471ccdf33ac413d49b32a898eeab13538b;p=users%2Fandresfreund%2Fpostgres.git

Only attempt to show collations on servers >= 9.1.

Show a proper error message instead of a SQL error.

Josh Kupershmidt
---

diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c
index 8dfb5705ce..2cfacd34e3 100644
--- a/src/bin/psql/describe.c
+++ b/src/bin/psql/describe.c
@@ -3061,6 +3061,13 @@ listCollations(const char *pattern, bool verbose, bool showSystem)
 	printQueryOpt myopt = pset.popt;
 	static const bool translate_columns[] = {false, false, false, false, false};
 
+	if (pset.sversion < 90100)
+	{
+		fprintf(stderr, _("The server (version %d.%d) does not support collations.\n"),
+				pset.sversion / 10000, (pset.sversion / 100) % 100);
+		return true;
+	}
+
 	initPQExpBuffer(&buf);
 
 	printfPQExpBuffer(&buf,