it makes sense to use parts of keys provided are used those with the highest level because significantly reduce the readings otherwise should build an index for that purpose. greetings -------Messaggio originale------- Da: [email protected] [firebird-support] Data: 20/07/2015 14.20.37 A: [email protected] Oggetto: Re: Rif: [firebird-support] Re: Is it possible to use only "part" of the index? So, if I change the order of fields in the index I can speed things up. Could someone explain me why it works like it works? What are the internals behind this?
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