> I couldn't explain more because of my poor English,sorry.
>
> But my test case usually causes backend abort.
> My test case is
> While 1 or more sessions frequently insert/update a table,
> vacuum the table.
>
> After vacuum, those sessions abort with message
> ERROR: cannot open segment .. of relation ...
>
> This ERROR finally causes spinlock freeze as I reported in a posting
> [HACKERS] spinlock freeze ?(Re: INSERT/UPDATE waiting (another
> example)).
>
> Comments ?
OK, I buy that. How will truncate fix things? Isn't that going to be
strange too. Hard to imagine how we are going to modify these things.
I am now leaning to the truncate option, especially considering that
usually only the last segment is going to be truncated.
-- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
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