| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Peter Eisentraut <peter_e(at)gmx(dot)net>, Joachim Wieland <joe(at)mcknight(dot)de>, Noah Misch <noah(at)leadboat(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Snapshot synchronization, again... |
| Date: | 2011-02-20 00:57:46 |
| Message-ID: | 1298163311-sup-3469@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Excerpts from Tom Lane's message of sáb feb 19 21:26:42 -0300 2011:
> However ... IIRC, hash_any gives different results on bigendian and
> littleendian machines. I'm not sure if a predictable cross-platform
> result is important for this use? If you're hashing data containing
> native integers, this is a problem anyway.
The current feature only lets you synchronize snapshots within a cluster
-- you can't ship them to another machine. I don't think dependency on
endianness is a problem here. (But no, the data doesn't contain native
integers -- it's the snapshot's text representation.)
--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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