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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Eric Raskin <eraskin@paslists.com>
cc: pgsql-performance@lists.postgresql.org
Subject: Re: Adding nextval() to a select caused hang/very slow execution
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Comments: In-reply-to Eric Raskin <eraskin@paslists.com>
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... btw, it occurs to me that at least as a stopgap,
"set enable_nestloop = off" would be worth trying.
The killer problem with rowcount-1 estimates is that they
encourage the planner to use nestloops when it shouldn't.

			regards, tom lane