Re: [HACKERS] join problems: FATAL 1: palloc failure: memory exhausted

OK,
flats=> set GEQO TO 'off';
SET VARIABLE
flats=> \i test.sql
explain select
a.ROOMS, b.STATION, a.STREET, a.HOUSE_NO, a.FLAT_NO,
float8(a.PRICE)/1000.0, a.DO_METRO, c.SPOSOB_SH, a.FLOOR,
e.HOUSE_TYPE_SHORT, a.HOUSE_FLOORS, float8(a.ALL_SQR)/100.0,
float8(a.LIVE_SQR)/100.0, float8(a.KITCHEN)/100.0, f.SANUZEL_SHORT,
a.SANUZEL_NO, a.BALKON, a.LODZHIA, a.HAVE_PHONE, a.HAVE_LIFT,
a.HAVE_MUSOR, g.POL_SHORT, h.SOST_SHORT, i.STATUS_SHORT, a.COMMENT
from WORK_FLATS a, METRO_STATIONS b, SPOSOB c, SERIALS d,
HOUSE_TYPE e, SANUZELS f, POLS g, SOSTS h, STATUS i
where b.STATION_ID = a.METRO_ID and c.SPOSOB_ID = a.DO_METRO_ID and
a.SERIAL_ID = d.SERIAL_ID and d.HOUSE_TYPE_ID = e.HOUSE_TYPE_ID and
f.SANUZEL_ID = a.SANUZEL and g.POL_ID = a.POL_ID and
h.SOST_ID = a.SOST_ID and i.STATUS_ID = a.STATUS_ID and
a.rooms = 1;

waiting .... waiting .... gave up after 20 minutes :-(
It seems setting GEQO to 'off' doesn't helps.
It's on P200, 64 Mb RAM, SCSI ...

6:23am up 10 days, 15:14, 12 users, load average: 1.29, 1.04, 0.65
89 processes: 86 sleeping, 3 running, 0 zombie, 0 stopped
CPU states: 50.1% user, 2.7% system, 0.0% nice, 47.2% idle
Mem: 62988K av, 62348K used, 640K free, 6624K shrd, 180K buff
Swap: 130748K av, 94956K used, 35792K free 4296K cached

PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
22970 postgres 12 0 94160 47M 260 R 0 50.9 77.7 13:41 postgres

Vadim, I can send you about 50 Kb compressed pg_dump of this db,
if you like to see yourself.

Oleg

On Fri, 31 Jul 1998, Vadim Mikheev wrote:

> Date: Fri, 31 Jul 1998 08:41:00 +0800
> From: Vadim Mikheev <vadim(at)krs(dot)ru>
> To: Oleg Bartunov <oleg(at)sai(dot)msu(dot)su>
> Cc: hackers(at)postgreSQL(dot)org
> Subject: Re: [HACKERS] join problems: FATAL 1: palloc failure: memory exhausted
>
> Oleg Bartunov wrote:
> >
> > explain select
> > a.ROOMS, b.STATION, a.STREET, a.HOUSE_NO, a.FLAT_NO,
> > float8(a.PRICE)/1000.0, a.DO_METRO, c.SPOSOB_SH, a.FLOOR,
> > e.HOUSE_TYPE_SHORT, a.HOUSE_FLOORS, float8(a.ALL_SQR)/100.0,
> > float8(a.LIVE_SQR)/100.0, float8(a.KITCHEN)/100.0, f.SANUZEL_SHORT,
> > a.SANUZEL_NO, a.BALKON, a.LODZHIA, a.HAVE_PHONE, a.HAVE_LIFT,
> > a.HAVE_MUSOR, g.POL_SHORT, h.SOST_SHORT, i.STATUS_SHORT, a.COMMENT
> > from WORK_FLATS a, METRO_STATIONS b, SPOSOB c, SERIALS d,
> > HOUSE_TYPE e, SANUZELS f, POLS g, SOSTS h, STATUS i
> > where b.STATION_ID = a.METRO_ID and c.SPOSOB_ID = a.DO_METRO_ID and
> > a.SERIAL_ID = d.SERIAL_ID and d.HOUSE_TYPE_ID = e.HOUSE_TYPE_ID and
> > f.SANUZEL_ID = a.SANUZEL and g.POL_ID = a.POL_ID and
> > h.SOST_ID = a.SOST_ID and i.STATUS_ID = a.STATUS_ID and
> > a.rooms = 1;
> > FATAL 1: palloc failure: memory exhausted
>
> Now please try the same after
>
> SET GEQO TO 'off';
>
> Vadim
>

_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83