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Re: 8.1.2 select for update issue

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"Ed L." <pgsql@xxxxxxxxxxxxx> writes:
> We're seeing some unexpected behavior in one particular 64-bit 
> Pgsql 8.1.2 running on HP-UX 11.23 and Itanium 2, built 
> with --enable-thread-safety.  We think we are seeing concurrent 
> select-for-updates of the same rows by multiple concurrent 
> backends, contrary to our understanding of select-for-update 
> semantics.

You really ought to be using something newer than 8.1.2.  However
I don't see anything directly related in the release notes.

You do have a transaction block established around this whole process?
Row locks only last as long as the current transaction ...

			regards, tom lane

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