| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Jon Erdman <postgresql(at)thewickedtribe(dot)net> |
| Cc: | Chris Travers <chris(at)metatrontech(dot)com>, pgsql-bugs(at)postgresql(dot)org |
| Subject: | Re: BUG #5288: Restoring a 7.4.5 -Fc dump using -j 2 segfaults (patch included) |
| Date: | 2010-01-19 18:49:08 |
| Message-ID: | 16891.1263926948@sss.pgh.pa.us |
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| Lists: | pgsql-bugs |
Jon Erdman <postgresql(at)thewickedtribe(dot)net> writes:
> That would seem to indicate that in the case of partial archives these
> missing deps wouldn't cause any worse failure than they otherwise would,
> since they'd be just as missing if you did a normal restore vs. a
> parallel one.
The dependency info isn't used at all unless you do a parallel restore.
We put that information into the dump file format specification years
ago with the idea that it would someday be used for purposes like this,
but 8.4's -j is the first attempt to actually use it. (The lack of
actual use is not unrelated to the fact that pre-8.0's representation
was unusable ...)
regards, tom lane
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