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From: Fernando Lujan <fernando.lujan@mandic.com.br>
To: pgsql-performance@postgresql.org
Subject: Sequence Scan vs. Index scan
Date: Tue, 21 Mar 2006 15:08:07 -0300
Message-ID: <44204107.3040708@mandic.com.br> (raw)

Hi guys,

I'm trying to figure out when Sequence Scan is better than Index Scan. I 
just want to know this because I disabled the sequence scan in 
postgresql and receive a better result. :)

Two tables.

Table 1 (1 million rows )
-----------
id
text
table2_id

Table 2 (300 thousand rows)
----------
id
text 2

When I join these two tables I have a sequence_scan. :(

Thanks in advance.

Fernando Lujan



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