Does postgresql 9.0.4 use index on PREFIX%SUFFIX queries?

["Edson Carlos Ericksson Richter" <richter@xxxxxxxxxxxxxx>]

Dear experts,

 

I have the following query:

 

select * from notafiscal where numeroctc like ‘POA%34345’;

 

Prefix is normally 3 characters, suffix varyies.

 

Is Postgresql 9.0.4 able to use an BTREE index on notafiscal.numeroctc to execute this query?

 

Should I create GIST index or something else to speed up the query?

 

 

Thanks,

 

Edson Carlos Ericksson Richter SimKorp Infomática Ltda
Fone:	(51) 3366-7964
Celular:	(51) 8585-0796

www.simkorp.com.br

 

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