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From Sávio Teles <savio.te...@lupa.inf.ufg.br>
Subject Re: How to perform range queries efficiently?
Date Mon, 26 Aug 2013 13:53:55 GMT
Ops, inverted index*!


2013/8/26 Sávio Teles <savio.teles@lupa.inf.ufg.br>

> Do I Have to use revert index to optimize range query operation?
>
>
> 2013/8/23 Sávio Teles <savio.teles@lupa.inf.ufg.br>
>
>> I need to perform range query efficiently. I have the table like:
>>
>> users
>> -------
>> user_id | age | gender | salary | ...
>>
>> The attr user_id is the PRIMARY KEY.
>>
>> Example of querying:
>>
>> select * from users where user_id = '*x*' and age > *y *and age < *z*and salary
>
>> *a* and salary < *b  *and age='M';
>>
>> This query takes a long time to run. Any ideas to perform it efficiently?
>>
>> Tks in advance.
>>
>>
>> --
>> Atenciosamente,
>> Sávio S. Teles de Oliveira
>> voice: +55 62 9136 6996
>> http://br.linkedin.com/in/savioteles
>>  Mestrando em Ciências da Computação - UFG
>> Arquiteto de Software
>> Laboratory for Ubiquitous and Pervasive Applications (LUPA) - UFG
>>
>
>
>
> --
> Atenciosamente,
> Sávio S. Teles de Oliveira
> voice: +55 62 9136 6996
> http://br.linkedin.com/in/savioteles
>  Mestrando em Ciências da Computação - UFG
> Arquiteto de Software
> Laboratory for Ubiquitous and Pervasive Applications (LUPA) - UFG
>



-- 
Atenciosamente,
Sávio S. Teles de Oliveira
voice: +55 62 9136 6996
http://br.linkedin.com/in/savioteles
Mestrando em Ciências da Computação - UFG
Arquiteto de Software
Laboratory for Ubiquitous and Pervasive Applications (LUPA) - UFG

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