Is that behaviour is correct?
yes - access to n position means in postgresql - skip n-1 elements
Hmmm...
how many elements to be skipped here ?
there are two independent stages:
a) detoast - loading and decompression (complete array is detoasted)
b) access
if you has
On 22/06/12 09:02, Maxim Boguk wrote:
May be I completely wrong but I always assumed that the access speed to the
array element in PostgreSQL should be close to constant time.
But in tests I found that access speed degrade as O(N) of array size.
Is that behaviour is correct?
From:
2012/6/26 Marc Mamin m.ma...@intershop.de:
On 22/06/12 09:02, Maxim Boguk wrote:
May be I completely wrong but I always assumed that the access speed to the
array element in PostgreSQL should be close to constant time.
But in tests I found that access speed degrade as O(N) of array size.
-Original Message-
From: Pavel Stehule [mailto:pavel.steh...@gmail.com]
2012/6/26 Marc Mamin m.ma...@intershop.de:
On 22/06/12 09:02, Maxim Boguk wrote:
May be I completely wrong but I always assumed that the access
speed to the array element in PostgreSQL should be close
2012/6/26 Marc Mamin m.ma...@intershop.de:
-Original Message-
From: Pavel Stehule [mailto:pavel.steh...@gmail.com]
2012/6/26 Marc Mamin m.ma...@intershop.de:
On 22/06/12 09:02, Maxim Boguk wrote:
May be I completely wrong but I always assumed that the access
speed to the
2012/6/26 Maxim Boguk maxim.bo...@gmail.com:
On Tue, Jun 26, 2012 at 6:04 PM, Pavel Stehule pavel.steh...@gmail.com
wrote:
2012/6/26 Marc Mamin m.ma...@intershop.de:
On 22/06/12 09:02, Maxim Boguk wrote:
May be I completely wrong but I always assumed that the access speed
to the
Hi all,
May be I completely wrong but I always assumed that the access speed to the
array element in PostgreSQL should be close to constant time.
But in tests I found that access speed degrade as O(N) of array size.
Test case (performed on large not busy server with 1GB work_mem to ensure I
On 22/06/12 09:02, Maxim Boguk wrote:
Hi all,
May be I completely wrong but I always assumed that the access speed
to the array element in PostgreSQL should be close to constant time.
But in tests I found that access speed degrade as O(N) of array size.
Test case (performed on large not busy
