Re: [HACKERS] A couple thoughts about btree fillfactor

2006-07-11 Thread Kenneth Marshall
On Mon, Jul 10, 2006 at 12:36:34PM -0400, Tom Lane wrote: > Now that the index options infrastructure is in, I am having a couple of > second thoughts about the specific behavior that's been implemented, > particularly for btree fillfactor. > > 1. ... I'm thinking > we could change the nbtsort.c

Re: [HACKERS] A couple thoughts about btree fillfactor

2006-07-10 Thread Tom Lane
[EMAIL PROTECTED] writes: > ... Do you think there should be a way of packing certain > indexes tighter, once they are known to be mostly read only? For > example, an option on REINDEX? This would free PostgreSQL to use a > smaller fillfactor while still allowing people to optimize those of > their

Re: [HACKERS] A couple thoughts about btree fillfactor

2006-07-10 Thread mark
On Mon, Jul 10, 2006 at 03:17:01PM -0400, Tom Lane wrote: > [EMAIL PROTECTED] writes: > > ... Do you think there should be a way of packing certain > > indexes tighter, once they are known to be mostly read only? For > > example, an option on REINDEX? This would free PostgreSQL to use a > > smaller

Re: [HACKERS] A couple thoughts about btree fillfactor

2006-07-10 Thread Hannu Krosing
Ühel kenal päeval, E, 2006-07-10 kell 12:36, kirjutas Tom Lane: > 3. What should the minimum fillfactor be? The patch as submitted > set the minimum to 50% for all relation types. I'm inclined to > think we should allow much lower fillfactors, maybe down to 10%. > A really low fillfactor could b

Re: [HACKERS] A couple thoughts about btree fillfactor

2006-07-10 Thread mark
On Mon, Jul 10, 2006 at 12:36:34PM -0400, Tom Lane wrote: > Now that the index options infrastructure is in, I am having a couple of > second thoughts about the specific behavior that's been implemented, > particularly for btree fillfactor. > 1. The btree build code (nbtsort.c) is dependent on the