Re: Multicolumn index for single-column queries?

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От Gavin Flower
Тема Re: Multicolumn index for single-column queries?
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Msg-id 8f5911db-7e9e-c487-ae4c-b692886d151f@archidevsys.co.nz
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Ответ на Re: Multicolumn index for single-column queries?  (Gavin Flower <GavinFlower@archidevsys.co.nz>)
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On 19/04/2019 14:01, Gavin Flower wrote:
[...]
>
> Also there will be fewer index entries per block for the multi_index, 
> which is why the I/O count will be higher even in the best case where 
> there is an equal number of rows referenced by each index entry.
>
Not sure why my system had this still in my draft folder!


Sorry, for the duplication...




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