From: | Kyotaro HORIGUCHI <horiguchi(dot)kyotaro(at)lab(dot)ntt(dot)co(dot)jp> |
---|---|
To: | fujita(dot)etsuro(at)lab(dot)ntt(dot)co(dot)jp |
Cc: | noah(at)leadboat(dot)com, shigeru(dot)hanada(at)gmail(dot)com, pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: inherit support for foreign tables |
Date: | 2014-09-02 05:22:18 |
Message-ID: | 20140902.142218.253402812.horiguchi.kyotaro@lab.ntt.co.jp |
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Thread: | |
Lists: | pgsql-hackers |
Hello, I have a request with slight significance for the messages.
> I'd like to address this by emitting the second message as shown below:
>
> INFO: analyzing "public.parent"
> INFO: "parent": scanned 0 of 0 pages, containing 0 live rows and 0 dead
> rows; 0 rows in sample, 0 estimated total rows
> INFO: analyzing "public.parent" inheritance tree
> INFO: skipping analyze of "public.parent" inheritance tree --- this
> inheritance tree contains foreign tables
In acquire_inherited_sample_rows(), the message below is emitted
when the parent explicitly specified in analyze command has at
least one foreign tables.
> "skipping analyze of \"%s.%s\" inheritance tree --- this
> inheritance tree contains foreign tables"
This message implicitly asserts (for me) that "A inheritance tree
containing at least one foreign tables *always* cannot be
analyzed" but in reality, we can let it go by specifying the
parent table explicitly. For example, the additional HINT or
DETAIL message would clarify that.
> INFO: analyzing "public.parent" inheritance tree
> INFO: skipping analyze of "public.parent" inheritance tree --- this
> inheritance tree contains foreign tables
+ HINT: You can analyze this inheritance tree by specifying "public.parent" to analze command
--
Kyotaro Horiguchi
NTT Open Source Software Center
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