How to

From: Guy Deleeuw <G(dot)De_Leeuw(at)eurofer(dot)be>
To: "pgsql-admin(at)postgresql(dot)org" <pgsql-admin(at)postgresql(dot)org>
Subject: How to
Date: 2011-02-06 13:15:44
Message-ID: 1296998144.2024.14.camel@pc-1000
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Hello

I have a strange behaviour :
time psql -d db_cathline -c "SELECT * FROM v_stock_status;"

real 0m5.780s
user 0m0.090s
sys 0m0.020s

time psql -d db_cathline -c "SELECT * FROM v_stock_status WHERE
remain_qty != 0;"

real 0m56.075s
user 0m0.070s
sys 0m0.030s

Why with the clause WHERE the time are 10x greater than ? How can I work
around this ?

# select version();

version
-------------------------------------------------------------------------------------------------------------
PostgreSQL 8.4.7 on x86_64-pc-linux-gnu, compiled by GCC gcc-4.4.real
(Ubuntu 4.4.3-4ubuntu5) 4.4.3, 64-bit
(1 ligne)

Regards
Guy

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