Re: [PERFORM] Building multiple indexes on one table.

2014-07-23 Thread Felipe Santos
Your question: Is there any way that I can build multiple indexes on one table without having to scan the table multiple times? My answer: I don't think so. Since each index has a different indexing rule, it will analyze the same table in a different way. I've built indexes on a 100GB table recent

Re: [PERFORM] Building multiple indexes on one table.

2014-07-23 Thread Claudio Freire
On Wed, Jul 23, 2014 at 4:40 PM, Marc Mamin wrote: >>On Thu, Jul 17, 2014 at 7:47 PM, Chris Ruprecht wrote: >>> Is there any way that I can build multiple indexes on one table without >>> having to scan the table multiple times? For small tables, that's probably >>> not an issue, but if I have

Re: [PERFORM] Building multiple indexes on one table.

2014-07-23 Thread Marc Mamin
>Von: pgsql-performance-ow...@postgresql.org >[pgsql-performance-ow...@postgresql.org]" im Auftrag von "Claudio >Freire [klaussfre...@gmail.com] >Gesendet: Freitag, 18. Juli 2014 01:21 >An: Chris Ruprecht >Cc: pgsql-performance@postgresql.org >Betreff: Re: [PERFOR

Re: [PERFORM] Building multiple indexes on one table.

2014-07-17 Thread Claudio Freire
On Thu, Jul 17, 2014 at 7:47 PM, Chris Ruprecht wrote: > Is there any way that I can build multiple indexes on one table without > having to scan the table multiple times? For small tables, that's probably > not an issue, but if I have a 500 GB table that I need to create 6 indexes > on, I don'

[PERFORM] Building multiple indexes on one table.

2014-07-17 Thread Chris Ruprecht
Is there any way that I can build multiple indexes on one table without having to scan the table multiple times? For small tables, that's probably not an issue, but if I have a 500 GB table that I need to create 6 indexes on, I don't want to read that table 6 times. Nothing I could find in the m