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 8dfb5705ce4564753c6689b455971d7e1abbe410..2cfacd34e38233cedcf28c55f3fee2a45d5a9dbd 100644 (file)
--- 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,