"Simon Riggs" <[EMAIL PROTECTED]> writes:
> Enclose a patch for new WAL records for relcache invalidation.

I don't think this works.  RelationCacheInitFileInvalidate is executed
post-commit, which means that there's a window between commit and where
you propose to write the WAL entry.  A crash and restart in that
interval would leave the catalog changes committed, but not reflected
into pg_internal.init.

I think we're probably better off to just forcibly remove the init file
during post-recovery cleanup.  The easiest place to do this might be
BuildFlatFiles, which has to scan pg_database anyway ...

                        regards, tom lane

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