Re: Fail Fast In CTAS/CMV If Relation Already Exists To Avoid Unnecessary Rewrite, Planning Costs

On Thu, Dec 24, 2020 at 7:40 AM Michael Paquier <michael@paquier.xyz> wrote:
>
> On Wed, Dec 23, 2020 at 07:13:33PM +0530, Bharath Rupireddy wrote:
> > +1. Shall we add some test cases(with xml, yaml, json formats as is
> > currently being done in explain.sql) to cover that? We can have the
> > explain_filter() function to remove the unstable parts in the output,
> > it looks something like below. If yes, please let me know I can add
> > them to matview and select_into.
>
> I am not sure that we need tests for all the formats, but having at
> least one of them sounds good to me.  I leave the choice up to you.

Since I tested that with all the formats manually here and it works,
so I don't want to make the test cases complicated with adding
explain_filter() function into matview.sql and select_into.sql and all
that. I'm okay without those test cases.

> What we have here looks rather committable.  Let's wait until the
> period of vacations is over before wrapping this up to give others the
> occasion to comment.

Thanks! Happy Vacations!

With Regards,
Bharath Rupireddy.
EnterpriseDB: http://www.enterprisedb.com