Re: greater than vs between in where clause

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От Adrian Klaver
Тема Re: greater than vs between in where clause
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Msg-id 5e49b484-632b-bd78-9459-88ec1ce20736@aklaver.com
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Ответ на greater than vs between in where clause  (Yambu <hyambu@gmail.com>)
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On 11/5/20 6:49 AM, Yambu wrote:
> May i know if there is a difference in speed between 1 ,2 and 3 below , 
> if column start_date is indexed
> 
> 1.  select * from table_1 where start_date > '1 Oct 2020'
> 2. select   * from table_1 where start_date between '1 Oct 2020' and now()
> 3. select * from table_1 where start_date between '1 Oct 2020' and '5 
> Nov 2020 23:59:59'

Run EXPLAIN ANALYZE(https://www.postgresql.org/docs/13/sql-explain.html) 
on each and let us know.

-- 
Adrian Klaver
adrian.klaver@aklaver.com



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