Re: postgres_fdw IMPORT SCHEMA and partitioned tables
Amit Langote <langote_amit_f8@lab.ntt.co.jp>
From: Amit Langote <Langote_Amit_f8@lab.ntt.co.jp>
To: Michael Paquier <michael.paquier@gmail.com>,
Robert Haas <robertmhaas@gmail.com>
Cc: Stephen Frost <sfrost@snowman.net>,
PostgreSQL mailing lists <pgsql-hackers@postgresql.org>
Date: 2017-03-31T04:37:55Z
Lists: pgsql-hackers
On 2017/03/31 13:23, Michael Paquier wrote: > On Wed, Mar 29, 2017 at 12:30 PM, Michael Paquier > <michael.paquier@gmail.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
Commits
-
postgres_fdw: Teach IMPORT FOREIGN SCHEMA about partitioning.
- f49bcd4ef3e9 10.0 landed