From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | Federico Balbi <fbalbi(at)cs(dot)utsa(dot)edu> |
Cc: | postgresql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: checksum |
Date: | 2004-09-26 19:10:51 |
Message-ID: | 4157143B.5040108@commandprompt.com |
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Thread: | |
Lists: | pgsql-general |
>>You could use the md5 function.... such as :
>>
>>select md5(foo) from bar where baz = 2;
>>
>>
>
>Looks like md5() takes only a string. I need to pass alist of fields
>instead. I was looking at the documentattion and I think I can write
>soemthing like:
>
>field1, field2, ..., fieldn = expr1, expr2, ..., exprn
>
>This way one operator will check all the fields for equality.
>
>
>
Maybe I am missing what you are saying, but you can md5() the data
column... So you could do:
select one,two from foo where md5(one) = 'e4da3b7fbbce2345d7772b0674a318d5';
or
select one,two from foo where md5(one) = $1; or whatever.
for example....
Sincerely,
Joshua D. Drake
>Fed
>
>
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>
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