Thank you ! Re: Is there any Faster workaround ?? - Mailing list pgsql-sql

Thanks so much!

i think this ques. has been answered before also in
this mailing list  sorry for asking...

regds
mallah.

Jean-Luc Lachance wrote:

> How about:
>
> DELETE  from t_a where exist (select email from t_b where t_b.email =
> t_a.email)
>
> Rajesh Kumar Mallah wrote:
> >
> > Hi folks,
> >
> > We require to do below or similar quite often
> >
> > DELETE  from t_a where email in (select email from t_b);
> >
> > everyone knows "IN" is pain fully slow currently in pgsql
> > is the any fster alternative to above query
> >
> > regds
> > Mallah.
> >
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