Checksum/Hash Functions
От | Bryan White |
---|---|
Тема | Checksum/Hash Functions |
Дата | |
Msg-id | 001201c207e1$4a1680e0$2000a8c0@bryan обсуждение исходный текст |
Ответы |
Re: Checksum/Hash Functions
Re: Checksum/Hash Functions |
Список | pgsql-general |
Does PostgreSQL have any built-in check sum or hash functions. I want to be able to compute a checksum of a string as I display a record to the user and when the user updates the record compare the checksum in the update statement. I can do the checksum on the client side but it would save the overhead of an additional select statement at update time if the checksum could be computed on the database backend. I know I could write my own function to do this but I first wanted to check if there was a function already setup to do it. I have looked at the documentation but did not find anything. --------- Bryan White This email represents the consensus opinion of the many voices in my head.
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