Tom Lane wrote:
> Bruce Momjian writes:
> > Neil Conway wrote:
> >> If a function's return value for a particular set of arguments could
> >> change within a single table scan, the function is volatile -- ISTM
> >> xslt_process() clearly falls within that definition.
>
> > My thought was that a w
Tom Lane wrote:
> Bruce Momjian writes:
> > Well, should be marked as VOLATILE? A web lookup?
>
> Yes. Its value is determined by factors outside the database, so
> it has to be categorized as volatile.
OK, done.
--
Bruce Momjian| http://candle.pha.pa.us
pgman@ca
Bruce Momjian writes:
> Well, should be marked as VOLATILE? A web lookup?
Yes. Its value is determined by factors outside the database, so
it has to be categorized as volatile.
regards, tom lane
---(end of broadcast)---
T
Bruce Momjian writes:
> Neil Conway wrote:
>> If a function's return value for a particular set of arguments could
>> change within a single table scan, the function is volatile -- ISTM
>> xslt_process() clearly falls within that definition.
> My thought was that a web page lookup is going to be
Neil Conway wrote:
> On Wed, 2005-12-10 at 23:46 -0400, Bruce Momjian wrote:
> > Agreed. I have changed them both to stable. I think xslt_process()
> > should be stable because it is unlikely you would want a URL's contents
> > to change inside a transaction
>
> Why is it "unlikely"?
>
> If a f
On Wed, 2005-12-10 at 23:46 -0400, Bruce Momjian wrote:
> Agreed. I have changed them both to stable. I think xslt_process()
> should be stable because it is unlikely you would want a URL's contents
> to change inside a transaction
Why is it "unlikely"?
If a function's return value for a partic
Agreed. I have changed them both to stable. I think xslt_process()
should be stable because it is unlikely you would want a URL's contents
to change inside a transaction, but likely you would want it to change
between transactions.
---
Hi,
I did see the message about the change of the function signatures to
include IMMUTABLE and thought "Yes, that makes sense" - however, it has
now occurred to me that:
1. xpath_table uses a SELECT query to fetch the data it uses, so should
presumably be marked STABLE?
2. xslt_process is to be
