Re: Poor performance using CTE

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 11/14/2012 10:56 AM, David Greco wrote:
You're right. I was translating an oracle query , but looks like PG will allow some syntax that is different. Trying to find entries in fedexinvoices where smp_pkg.get_invoice_charges(id) returns a record containing charge_name in ('ADDRESS CORRECTION CHARGE','ADDRESS CORRECTION'). Should return the fedexinvoices row and the row from smp_pkg.get_invoice_charges that contains the address correction.


Something like this, though this is syntactically incorrect as smp_pkg.get_invoice_charges returns a set:


select fedexinvoices.*, (smp_pkg.get_invoice_charges(id)).*
from fedexinvoices
WHERE
trim(fedexinvoices.trackno)='799159791643'
and
(smp_pkg.get_invoice_charges(id)).charge_name IN ('ADDRESS CORRECTION CHARGE','ADDRESS CORRECTION')


First, please don't top-post when someone has replied underneath your post. It makes the thread totally unreadable. See <http://idallen.com/topposting.html>

You could do something like this:

WITH invoices as
(
   select *
   from fedexinvoices
   where trim(fedexinvoices.trackno)='799159791643'
),

charges as
(
   SELECT fi2.id, smp_pkg.get_invoice_charges(fi2.id) charge_info
   from fedexinvoices fi2 join invoices i on i.id = f12.id
)

select invoices.*
from invoices
inner join charges on charges.id = invoices.id
AND (charges.charge_info).charge_name IN ('ADDRESS CORRECTION CHARGE','ADDRESS CORRECTION')

;


Or probably something way simpler but I just did this fairly quickly and mechanically


cheers

andrew


--
Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance


[Postgresql General]     [Postgresql PHP]     [PHP Users]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Yosemite]

  Powered by Linux