Re: How to reindex when unable to open relation?

Tom Lane wrote:
> Darren Reed <darrenr+postgres@fastmail.net> writes:
> >>> How do I know which files those are?
> >>
> >> find $PGDATA -name pg_internal.init
>
> > Doesn't exist.
>
> Sucks to be you, then :-(
>
> I'm curious though exactly where the failure is, because there's not
> much in RelationCacheInitializePhase2 that looks like it could crash,
> other than the init-file reading (I assume load_relcache_init_file
> got inlined into RelationCacheInitializePhase2).  Do you want to try
> rebuilding the backend with --enable-debug so we can get a better
> traceback?
>

#0  0x08298378 in RelationCacheInitializePhase2 () at relcache.c:2394
2394                    LOAD_CRIT_INDEX(AttributeRelidNumIndexId);
(gdb) where
#0  0x08298378 in RelationCacheInitializePhase2 () at relcache.c:2394
#1  0x082ac19c in InitPostgres (dbname=0x83ba450 "postgres",
    username=0x83c1428 "postgres") at postinit.c:459
#2  0x0820b533 in PostgresMain (argc=4, argv=0x83c1458,
    username=0x83c1428 "postgres") at postgres.c:3143
#3  0x081dc572 in BackendRun (port=0x83bc800) at postmaster.c:2934
#4  0x081dbb7e in BackendStartup (port=0x83bc800) at postmaster.c:2561
#5  0x081d985c in ServerLoop () at postmaster.c:1214
#6  0x081d9292 in PostmasterMain (argc=3, argv=0xbfbfeb14) at
postmaster.c:966
#7  0x08187989 in main (argc=3, argv=0xbfbfeb14) at main.c:188
(gdb) p ird
$1 = (Relation) 0x0
(gdb) p oldcxt
$2 = (MemoryContext) 0x83de258
(gdb) p needNewCacheFile
$3 = 1 '\001'
(gdb) p status
$4 = {hashp = 0x8, curBucket = 2, curEntry = 0x8360777}
(gdb) p idhentry
$5 = (RelIdCacheEnt *) 0x836b168

Darren