| From: | Peter Smith <smithpb2250(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Euler Taveira <euler(at)eulerto(dot)com>, Rahila Syed <rahilasyed90(at)gmail(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Önder Kalacı <onderkalaci(at)gmail(dot)com>, japin <japinli(at)hotmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, David Steele <david(at)pgmasters(dot)net>, Craig Ringer <craig(at)2ndquadrant(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, Amit Langote <amitlangote09(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: row filtering for logical replication |
| Date: | 2021-09-02 04:19:35 |
| Message-ID: | CAHut+Psvtf1Wt=Ji6XuvTDDLsBKkJpo1BT59DPALhWyGSbifLw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Sep 2, 2021 at 1:43 PM Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
...
> I think if get Dilip's patch then we can have a rule for filter
> columns such that it can contain only replica identity key columns.
> This rule is anyway required for Deletes and we can have it for
> Updates. At this stage, I haven't checked what it takes to implement
> such a solution but it would be worth investigating it.
Yes, I have been experimenting with part of this puzzle. I have
implemented already some POC code to extract the list of table columns
contained within the row filter expression. I can share it after I
clean it up some more if that is helpful.
------
Kind Regards,
Peter Smith.
Fujitsu Australia.
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