Re: [GENERAL] Question regarding the output of postgresql *explain*command

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От Arup Rakshit
Тема Re: [GENERAL] Question regarding the output of postgresql *explain*command
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Msg-id 93CCEEDE-E270-4297-A84F-EEE625922ED5@outlook.com
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Ответ на Re: [GENERAL] Question regarding the output of postgresql *explain* command  (Tom Lane <tgl@sss.pgh.pa.us>)
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Hi Tom,

Thanks, I’ll read this page.




> On May 28, 2017, at 8:36 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> 
> Arup Rakshit <aruprakshit1987@outlook.com> writes:
>> I was reading to day how indexing works. And I was trying some query, for example below one. What the range
basicallymeans (cost=0.28..8.30 ? I don’t understand this.
 
> 
> https://www.postgresql.org/docs/current/static/using-explain.html
> 
>             regards, tom lane

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