Re: checksum
От | Joshua D. Drake |
---|---|
Тема | Re: checksum |
Дата | |
Msg-id | 4157143B.5040108@commandprompt.com обсуждение исходный текст |
Ответ на | Re: checksum (Federico Balbi <fbalbi@cs.utsa.edu>) |
Список | 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
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