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Re: Why my query not using index to sort?

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On 9/28/18 6:19 AM, Arup Rakshit wrote:
Hi Ravi,


Yes you are right. It seems it is doing sorting in memory by name. But I have `name` column in index.

You are looking for the vessels.company_id not vessels.name so not sure why you expect an index lookup on name?



Thanks,

Arup Rakshit
ar@xxxxxxx <mailto:ar@xxxxxxx>



On 28-Sep-2018, at 6:38 PM, Ravi Krishna <srkrishna1@xxxxxxx <mailto:srkrishna1@xxxxxxx>> wrote:


Is there anyway, I can improve the sorting so that it can use the index ?

Are you telling that why PG is not simply reading the data from the index (which is already in sorted
order)?




--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx




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