Subject | Re: [firebird-support] specify size of the index on the text field |
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Author | Ann W. Harrison |
Post date | 2004-11-22T15:19:21Z |
At 06:18 PM 11/21/2004, =?ISO-8859-2?Q?Michal_=AEerav=EDk?= wrote:
maintained with triggers using the substring function and
use that field for the index.
Regards,
Ann
>is it possible to declare explicitly size of the index on [var]char column?No, but you can create a second field that is populated and
>When I have ie. varchar(255), can I specify index for sorting only from
>i.e. first 5 letters?
>Something like create index xx on tablee(myvarchar(5));
maintained with triggers using the substring function and
use that field for the index.
Regards,
Ann