| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com> |
| Cc: | Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Greg Nancarrow <gregn4422(at)gmail(dot)com>, Euler Taveira <euler(at)eulerto(dot)com>, Peter Smith <smithpb2250(at)gmail(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: | 2021-07-20 02:23:07 |
| Message-ID: | 202107200223.j7ban5mbxsjo@alvherre.pgsql |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On 2021-Jul-19, Tomas Vondra wrote:
> I have a feeling it's getting overly complicated, to the extent that
> it'll be hard to explain to users and reason about. I don't think
> there's a "perfect" solution for cases when the filter expression gives
> different answers for old/new row - it'll always be surprising for some
> users :-(
>
> So maybe the best thing is to stick to the simple approach already used
> e.g. by pglogical, which simply user the new row when available (insert,
> update) and old one for deletes.
OK, no objection to that plan.
--
Álvaro Herrera 39°49'30"S 73°17'W — https://www.EnterpriseDB.com/
"No es bueno caminar con un hombre muerto"
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Peter Geoghegan | 2021-07-20 02:37:46 | Re: Transactions and indexes |
| Previous Message | Chris Cleveland | 2021-07-20 02:20:33 | Re: Transactions and indexes |