From: | Amit Langote <Langote_Amit_f8(at)lab(dot)ntt(dot)co(dot)jp> |
---|---|
To: | Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com> |
Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, PostgreSQL mailing lists <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: postgres_fdw IMPORT SCHEMA and partitioned tables |
Date: | 2017-03-31 04:37:55 |
Message-ID: | 2cab6db2-cf10-b8f2-58ed-7d4a052dac34@lab.ntt.co.jp |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On 2017/03/31 13:23, Michael Paquier wrote:
> On Wed, Mar 29, 2017 at 12:30 PM, Michael Paquier
> <michael(dot)paquier(at)gmail(dot)com> wrote:
>> Users like things that are friendly, and we are most likely going to
>> piss them off when using postgres_fdw if they need to list manually
>> each parent table from the IMPORT FOREIGN SCHEMA command.
>>
>>> However, if we're going to do something about this, I think it should
>>> be done soon. Otherwise, I'm going to advocate for reclassifying this
>>> issue from "open item" to "possible area for future development".
>>
>> I was just waiting for the end of the CF before sending in a patch,
>> allocating now some time to look at some patches pending for reviews.
>
> And here is the promised patch to address this open item.
Looks good to me, except maybe:
+
+ <para>
+ For partitioned tables, partitions are automatically excluded from the
+ schema data imported. Only the definition of partitioned tables is
included
+ to give access to the full data set of all partitions present remotely.
+ </para>
+
Only the definitions of "root" partitioned tables, because when using
multi-level partitioning, there would be partitioned tables that won't be
included (because, relispartition=true).
If you agree, then this code comment too could use the same terminology:
+ * Ignore table data for partitions and only include the parent
+ * definitions to allow access to the complete remote data set
+ * locally in the schema imported.
+ *
Thanks,
Amit
From | Date | Subject | |
---|---|---|---|
Next Message | Kuntal Ghosh | 2017-03-31 04:42:11 | Re: strange parallel query behavior after OOM crashes |
Previous Message | Michael Paquier | 2017-03-31 04:37:38 | Re: [patch] reorder tablespaces in basebackup tar stream for backup_label |