| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Francisco Reyes <lists(at)natserv(dot)com> |
| Cc: | pgsql General List <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: CRC function? |
| Date: | 2002-07-08 04:32:23 |
| Message-ID: | 200207080432.g684WNn14343@candle.pha.pa.us |
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| Lists: | pgsql-general |
Francisco Reyes wrote:
> Looked at contrib and didn't see it.
> Anyone knows if there is a CRC fuction available for PostgreSQL.
>
> As an example of how I would use it.
> Imagine a table with 3 columns
> id,text, crc_val
>
> I could then do something like:
> select id from <table> where crc(text) <> crc_val;
Sure see contrib/pgcrypto/README:
Hashes: MD5, SHA1, CRC32, CRC32B, GOST, TIGER, RIPEMD160,
^^^^^^^^^^^^^
--
Bruce Momjian | http://candle.pha.pa.us
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