| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com> |
| Cc: | Zoltan Boszormenyi <zboszor(at)dunaweb(dot)hu>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [PERFORM] psql -A (unaligned format) eats too much memory |
| Date: | 2006-06-05 15:27:30 |
| Message-ID: | 20512.1149521250@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-performance |
"Jim C. Nasby" <jnasby(at)pervasive(dot)com> writes:
> I've been able to verify this on 8.1.4; psql -A -t -c 'SELECT * FROM
> largetable' > /dev/null results in psql consuming vast quantities of
> memory. Why is this?
Is it different without the -A?
I'm reading this as just another uninformed complaint about libpq's
habit of buffering the whole query result. It's possible that there's
a memory leak in the -A path specifically, but nothing said so far
provided any evidence for that.
regards, tom lane
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