Subject | Re: [firebird-support] Re: Performance implications of BIGINT vs INTEGER primary keys |
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Author | Ann W. Harrison |
Post date | 2005-02-14T02:54:49Z |
vandy899 wrote:
numeric keys are converted to one or the other.
regards,
Ann
>>Firebird supports two types of numeric indexes, int64 and double. All
>>I'm wondering if there's an associated performance penalty for using
>>BIGINT as opposed to INTEGER for primary/surrogate keys.
>
>
> I don't know, but I honestly don't think it would be that great. Even
> if 64-bit ints were not platform native, it would only be half the
> speed at comparing the keys, a small part of the join stuff (Query
> Planner is more expensive).
numeric keys are converted to one or the other.
regards,
Ann