LIMIT OFFSET with DB view vs plain SQL

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От Raj Gandhi
Тема LIMIT OFFSET with DB view vs plain SQL
Дата
Msg-id CALU_HCMxM5m-Sxsn3fwhqwu23b3O2q+Rviv-fxdJM1EXG=A3fg@mail.gmail.com
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Ответы Re: LIMIT OFFSET with DB view vs plain SQL
Re: LIMIT OFFSET with DB view vs plain SQL
Re: LIMIT OFFSET with DB view vs plain SQL
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Hi everyone,

 

I’m using LIMIT offset with DB view. Looks like query planner is applying the LIMIT for DB view at the end after processing all rows.

When running same SQL that was used to create the DB view, LIMIT is applied earlier so the query is much faster.

 

Explain plan using DB view

https://explain.depesz.com/s/gzjQ

 

Explain plan using raw SQL

https://explain.depesz.com/s/KgwO

 

In both tests LIMIT was 100 with offset  = 0.

Is there any way to force DB view to apply limit earlier?

 

Thanks,

Raj

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