pgsql-server/contrib/pg_autovacuum Tag: REL7_4 ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    momjian@svr1.postgresql.org    03/12/01 19:19:55

Modified files:
    contrib/pg_autovacuum: Tag: REL7_4_STABLE pg_autovacuum.c
                           pg_autovacuum.h

Log message:
    I've run across a pretty serious problem with pg_autovacuum.
    pg_autovacuum looses track of any table that's ever been truncated
    (possibly other situations too).   When i truncate a table it gets a
    new relfilenode in pg_class.  This is a problem because pg_autovacuum
    assumes pg_class.relfilenode will join to pg_stats_all_tables.relid.
    pg_stats_all_tables.relid is actallly the oid from pg_class, not the
    relfilenode.   These two values start out equal so pg_autovacuum works
    initially, but it fails later on because of this incorrect assumption.

    This patch fixes that problem.  Applied to HEAD and 7.4.X.

    Brian Hirt