Re: Handle infinite recursion in logical replication setup
Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
From: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
To: Peter Smith <smithpb2250@gmail.com>
Cc: vignesh C <vignesh21@gmail.com>, "kuroda.hayato@fujitsu.com" <kuroda.hayato@fujitsu.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2022-04-05T13:36:18Z
Lists: pgsql-hackers
On Tue, Apr 5, 2022 at 6:21 AM Peter Smith <smithpb2250@gmail.com> wrote: > > Here are my comments for the latest patch v6-0001. > > (I will post my v6-0002 review comments separately) > > PATCH v6-0001 comments > ====================== > > 1.1 General - Option name > > I still feel like the option name is not ideal. Unfortunately, this is > important because any name change would impact lots of these patch > files and docs, struct members etc. > > It was originally called "local_only", but I thought that as a > SUBSCRIPTION option that was confusing because "local" means local to > what? Really it is local to the publisher, not local to the > subscriber, so that name seemed misleading. > > Then I suggested "publish_local_only". Although that resolved the > ambiguity problem, other people thought it seemed odd to have the > "publish" prefix for a subscription-side option. > > So now it is changed again to "subscribe_local_only" -- It's getting > better but still, it is implied that the "local" means local to the > publisher except there is nothing in the option name really to convey > that meaning. IMO we here all understand the meaning of this option > mostly by familiarity with this discussion thread, but I think a user > coming to this for the first time will still be confused by the name. > > Below are some other name ideas. Maybe they are not improvements, but > it might help other people to come up with something better. > > subscribe_publocal_only = true/false > origin = pub_only/any > adjacent_data_only = true/false > direct_subscriptions_only = true/false > ... FWIW, The subscriber wants "changes originated on publisher". From that angle origin = publisher/any looks attractive. It also leaves open the possibility that the subscriber may ask changes from a set of origins or even non-publisher origins. -- Best Wishes, Ashutosh Bapat
Commits
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Improved CREATE SUBSCRIPTION message for clarity
- 1e7ca1189ccc 17.0 landed
- 842b65905046 16.0 landed
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Fix the test case introduced by commit 8756930190.
- 032465157347 16.0 landed
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Raise a warning if there is a possibility of data from multiple origins.
- 875693019053 16.0 landed
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Add wait_for_subscription_sync for TAP tests.
- 0c20dd33db16 16.0 cited
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Bump catversion for commit d8cd0c6c95c0120168df93aae095df4e0682a08a.
- 5f858dd3bebd 16.0 cited
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Allow users to skip logical replication of data having origin.
- 366283961ac0 16.0 landed
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Improve two comments related to a boolean DefElem's value
- 8445f5a21d40 16.0 cited
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doc: Fix man page whitespace issues
- d7ab2a9a3c0a 15.0 cited