Re: how to call stored procedures that are writes

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Ross Boylan <ross(at)biostat(dot)ucsf(dot)edu>
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: how to call stored procedures that are writes
Date: 2012-05-31 05:23:56
Message-ID: 28695.1338441836@sss.pgh.pa.us
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Ross Boylan <ross(at)biostat(dot)ucsf(dot)edu> writes:
> Suppose I have a function (stored procedure) whose purpose is to write
> to the database. How would I call the function from a client? select?

Yup. Functions are functions.

> It seems strange to use a select for something that writes rather than
> reads.

Perhaps. We have resisted adding a separate "CALL" type of command,
though, as long as it would only be syntactic sugar for calling the same
kind of function object. There has been a lot of discussion about
adding a different sort of stored procedure that would execute "outside"
rather than "within" the transaction engine, so that it could start and
commit multiple transactions; and if and when that happens, it would
need a different type of statement to call it.

regards, tom lane

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