From: | Amit Langote <amitlangote09(at)gmail(dot)com> |
---|---|
To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
Cc: | Pg Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: pg_trigger.tgparentid |
Date: | 2020-02-18 04:11:06 |
Message-ID: | CA+HiwqE17VLba2c7VTx8tb70DkDq0go_tF7tusXJk=1kgp6E=Q@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
On Tue, Feb 18, 2020 at 6:56 AM Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
> As mentioned in https://postgr.es/m/20191231194759.GA24692@alvherre.pgsql
> I propose to add a new column to pg_trigger, which allows us to remove a
> pg_depend scan when cloning triggers when adding/attaching partitions.
> (It's not that I think the scan is a performance problem, but rather
> than notionally we try not to depend on pg_depend contents for this kind
> of semantic derivation.)
@@ -16541,7 +16493,7 @@ CloneRowTriggersToPartition(Relation parent,
Relation partition)
*
* However, if our parent is a partitioned relation, there might be
This is existing text, but should really be:
However, if our parent is a *partition* itself, there might be
(Sorry, I forgot to report this when the bug-fix went in couple months ago.)
* internal triggers that need cloning. In that case, we must skip
- * clone it if the trigger on parent depends on another trigger.
+ * cloning it if the trigger on parent depends on another trigger.
2nd sentence seems unclear to me. Does the following say what needs
to be said here:
* However, if our parent is a partition itself, there might be
* internal triggers that need cloning. For example, triggers on the
* parent that were in turn cloned from its own parent are marked
* internal, which too must be cloned to the partition.
Thanks,
Amit
From | Date | Subject | |
---|---|---|---|
Next Message | Fujii Masao | 2020-02-18 04:16:56 | Re: table partitioning and access privileges |
Previous Message | Michael Paquier | 2020-02-18 03:39:49 | Re: Wait event that should be reported while waiting for WAL archiving to finish |