Re: [EXPLAIN] Nested loops

From: Thomas Pundt <mlists(at)rp-online(dot)de>
To: Reg Me Please <regmeplease(at)gmail(dot)com>
Cc: pgsql-general(at)postgresql(dot)org, Victor Nawothnig <victor(dot)nawothnig(at)gmail(dot)com>
Subject: Re: [EXPLAIN] Nested loops
Date: 2009-01-09 19:00:36
Message-ID: 49679ED4.4070607@rp-online.de
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Reg Me Please wrote:
> Here it comes:
>
> Aggregate (cost=227.59..227.61 rows=1 width=8)
> -> Nested Loop (cost=0.00..227.34 rows=49 width=8)
> -> Seq Scan on T2 (cost=0.00..1.07 rows=6 width=4)
> Filter: (fld1 = 'VEND'::text)
> -> Index Scan using i_T1_partial on T1 (cost=0.00..37.61 rows=8
> width=8)
> Index Cond: ((T1.prod_id = 42) AND (T1.fk1 = T2.fk1))

That's the EXPLAIN output, _not_ EXPLAIN ANALYZE as requested.

Probably statistics aren't up-to-date?

Thomas

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