SQL_CALC_FOUND_ROWS in POSTGRESQL / Some one can helpe me.

From: Marcos Borges <marcosborges(at)mbsi(dot)com(dot)br>
To: pgsql-performance(at)postgresql(dot)org
Subject: SQL_CALC_FOUND_ROWS in POSTGRESQL / Some one can helpe me.
Date: 2006-12-07 13:19:15
Message-ID: 457814D3.1030001@mbsi.com.br
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<b>SQL_CALC_FOUND_ROWS in POSTGRESQL</b><br>
<br>
In mysqln i m using the command SQL_CALC_FOUND_ROWS in follow sintax.<br>
SELECT SQL_CALC_FOUND_ROWS name, email, tel FROM mytable WHERE name
&lt;&gt; '' LIMIT 0, 10<br>
to have the recorset data.<br>
and<br>
SELECT FOUND_ROWS();<br>
to have the total of registers found.<br>
<br>
I dont want to use the command count(*), because the performance will
fall down, depending of the quantyt of tables and "joins".<br>
<br>
The Data base postgresql have something similar ???<br>
<br>
<br>
---------------------------------------------------------------------------------------------------<br>
<br>
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<b>SQL_CALC_FOUND_ROWS no POSTGRESQL</b><br>
D&uacute;vida NINJA no POSTGRESQL<br>
No mysql utilizo o comando SQL_CALC_FOUND_ROWS na seguinte sintax<br>
SELECT SQL_CALC_FOUND_ROWS nome, email, telefone FROM tabela WHERE nome
&lt;&gt; '' LIMIT 0, 10<br>
para obter o meu recordset<br>
e<br>
SELECT FOUND_ROWS();<br>
para obter o total de resgitros que realmente existem em minha tabela
condicionado pelo WHERE, sem ser limitado pelo LIMIT.<br>
<br>
N&atilde;o quero usar o count(*) pois o desempenho cai dependendo da
quantidade de tabelas selecionadas e quantidade de registros.<br>
<br>
<br>
O postgreSQL possui algo similar? Caso sim pode me informar qual e
fornecer um exemplo. <br>
<br>
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