st 19. 12. 2018 v 19:01 odesÃlatel Tom Lane <t...@sss.pgh.pa.us> napsal:
> Pavel Stehule <pavel.steh...@gmail.com> writes: > > st 19. 12. 2018 v 17:59 odesÃlatel Tom Lane <t...@sss.pgh.pa.us> napsal: > >> So either this is something we fixed since 9.5.5, or your summary > >> of the problem is missing many critical details. > > > I got different error message "could not open critical system index". I > > checked files, and related files was there. > > Hmm ... looking at the relcache code, it appears that could only happen > if the pg_class entry for that index couldn't be found. Which probably > means you've suffered catastrophic damage to pg_class --- there's no > good reason to assume that only that one row has been clobbered. > Reindexing isn't going to get you out of that :-( > I found this index in pg_class file . But that is all what I can say - I don't know if this table is readable or not. > regards, tom lane >