Обсуждение: Precompile SQL functions

Do we precompile SQL functions yet?  I see it on the TODO list and I
can't remember if it is done.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073
 

Bruce Momjian <pgman@candle.pha.pa.us> writes:
> Do we precompile SQL functions yet?

As of CVS tip, we can inline SQL functions that are simple "SELECT
expression" cases; and it's always been true that SQL function queries
are planned only once per outer query.  I don't believe there's any
cross-query caching of SQL function plans, however.
        regards, tom lane

Just checking for TODO list.  Thanks.

---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Do we precompile SQL functions yet?
> 
> As of CVS tip, we can inline SQL functions that are simple "SELECT
> expression" cases; and it's always been true that SQL function queries
> are planned only once per outer query.  I don't believe there's any
> cross-query caching of SQL function plans, however.
> 
>             regards, tom lane
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073