Re: pgsql: Clarify use of temporary tables within partition trees - Mailing list pgsql-hackers

From Amit Langote
Subject Re: pgsql: Clarify use of temporary tables within partition trees
Date
Msg-id b7cc212d-8455-c548-5a71-3cbf6133abd6@lab.ntt.co.jp
Whole thread Raw
In response to Re: pgsql: Clarify use of temporary tables within partition trees  (Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>)
Responses Re: pgsql: Clarify use of temporary tables within partition trees  (Michael Paquier <michael@paquier.xyz>)
List pgsql-hackers
Just realized something...

On 2018/07/03 15:29, Amit Langote wrote:
> Sorry for jumping in late here.  I have a comment on the patch.
> 
> +    /* if there are no partitions then treat this as non-inheritance case. */
> +    if (partdesc->nparts == 0)
> +    {
> +        parentrte->inh = false;
> +        return;
> +    }
> +
> 
> Why is this not near the beginning of expand_partitioned_rtentry()?

This one still stands I think.

> Also, ISTM, this code would be unreachable because
> expand_inherited_rtentry would not call here if the above if statement is
> true, no?

I forgot that expand_partitioned_rtentry() will recursively call itself if
a partition is itself a partitioned table, in which case the above code helps.

Thanks,
Amit



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