Re: [SQL] Question about POSIX Regular Expressions performance on large dataset.

*one table* search? (there are no joins, and will never be). I think it should, but: what do you think? Ildefonso. On Tue, Aug 17, 2010 at 9:51 PM, Jose Ildefonso Camargo Tolosa wrote: > Hi! > > I'm analyzing the possibility of using PostgreSQL to store a huge > amount of data (

[SQL] Question about POSIX Regular Expressions performance on large dataset.

Hi! I'm analyzing the possibility of using PostgreSQL to store a huge amount of data (around 1000M records, or so), and these, even though are short (each record just have a timestamp, and a string that is less than 128 characters in length), the strings will be matched against POSIX Regular E

Re: [SQL] Using count on a join, group by required?

On Wed, Aug 11, 2010 at 8:09 AM, Peter Eisentraut wrote: > On tis, 2010-08-10 at 22:21 -0430, Jose Ildefonso Camargo Tolosa wrote: >> And it works, it gives me something like: >> >>  product_id |         name         |     code      | manufacturer_id | >>     manufactu

[SQL] Using count on a join, group by required?

Greetings! First: This is working, I just need a clarification on concept, so, it is not necessary for you to look deeply at the SQL statement. I have this: Table: products that references manufacturer via products.manufacturer_id to manufacturer.id (not important, just informative). Table: prod