Re: BUG #6186: out of memory while analyze

Hello,

ok or write that there is limit for 32bit system.

With default value 100 have bad perfomance :-(

But thank you for yours time.

2011/8/31 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Lampa <lampacz(at)gmail(dot)com> writes:
>> default_statistics_target = 8000        # range 1-10000
>
>> Problem seems to be in default_statistics_target values from approx
>> 6300. Up to 6300 analyze works but on another machine (64bit) works
>> 10000 without problems on same but larger table (more data)
>
> Well, there's a reason why the default value of that parameter is 100
> and not 10000 ;-).  The larger it is, the more memory space it's going
> to take to do an ANALYZE.  I don't see any bug here, you're just trying
> to do more than you can do in a 32-bit machine.
>
> I guess we could improve the documentation of default_statistics_target
> to point out that it costs not only more time but more memory in
> ANALYZE.
>
>                        regards, tom lane
>

--
Lampa