Re: row filtering for logical replication

Tomas Vondra <tomas.vondra@enterprisedb.com>

From: Tomas Vondra <tomas.vondra@enterprisedb.com>

To: Amit Kapila <amit.kapila16@gmail.com>

Cc: Euler Taveira <euler@eulerto.com>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Peter Smith <smithpb2250@gmail.com>, Rahila Syed <rahilasyed90@gmail.com>, Peter Eisentraut <peter.eisentraut@enterprisedb.com>, Önder Kalacı <onderkalaci@gmail.com>, japin <japinli@hotmail.com>, Michael Paquier <michael@paquier.xyz>, David Steele <david@pgmasters.net>, Craig Ringer <craig@2ndquadrant.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Amit Langote <amitlangote09@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2021-07-19T13:34:48Z

Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

Release cache tuple when no longer needed
- ed0fbc8e5ac9 15.0 landed
Add some additional tests for row filters in logical replication.
- ceb57afd3ce1 15.0 landed
Fix one of the tests introduced in commit 52e4f0cd47.
- cfb4e209ec15 15.0 landed
Allow specifying row filters for logical replication of tables.
- 52e4f0cd472d 15.0 landed
Move scanint8() to numutils.c
- cfc7191dfea3 15.0 cited
Replace Test::More plans with done_testing
- 549ec201d613 15.0 cited
Reduce relcache access in WAL sender streaming logical changes
- 6ce16088bfed 15.0 cited
Small cleanups related to PUBLICATION framework code
- c9105dd3660f 15.0 cited
Add a view to show the stats of subscription workers.
- 8d74fc96db5f 15.0 cited
Allow publishing the tables of schema.
- 5a2832465fd8 15.0 cited
Doc: improve documentation of CREATE/ALTER SUBSCRIPTION.
- 1882d6cca161 15.0 cited
Add PublicationTable and PublicationRelInfo structs
- 0c6828fa987b 15.0 cited
Remove unused argument "txn" in maybe_send_schema().
- 93d573d86571 15.0 cited
Add prepare API support for streaming transactions in logical replication.
- 63cf61cdeb7b 15.0 cited
Unify PostgresNode's new() and get_new_node() methods
- 201a76183e20 15.0 cited
Use l*_node() family of functions where appropriate
- 2b00db4fb0c7 15.0 cited
Add support for prepared transactions to built-in logical replication.
- a8fd13cab0ba 15.0 cited
Restore the portal-level snapshot after procedure COMMIT/ROLLBACK.
- ef9480509622 11.13 cited
Rename a parse node to be more general
- 91d1f2d30210 14.0 landed
Remove unused column atttypmod from initial tablesync query
- 4ad31bb2ef25 14.0 landed
SEARCH and CYCLE clauses
- 3696a600e229 14.0 cited

On 7/19/21 1:30 PM, Amit Kapila wrote:
> On Wed, Jul 14, 2021 at 8:03 PM Tomas Vondra
> <tomas.vondra@enterprisedb.com> wrote:
>>
>> On 7/14/21 2:50 PM, Amit Kapila wrote:
>>> On Wed, Jul 14, 2021 at 3:58 PM Tomas Vondra
>>>
>>> I think apart from the above, it might be good if we can find what
>>> some other databases does in this regard?
>>>
>>
>> Yeah, that might tell us what the users would like to do with it. I did
>> some quick search, but haven't found much :-( The one thing I found is
>> that Debezium [1] allows accessing both the "old" and "new" rows through
>> value.before and value.after, and use both for filtering.
>>
> 
> Okay, but does it apply a filter to both rows for an Update event?
> 
>>
>> [1]
>> https://wanna-joke.com/wp-content/uploads/2015/01/german-translation-comics-science.jpg
>>
> 
> This link doesn't provide Debezium information, seems like a typo.
> 

Uh, yeah - I copied a different link. I meant to send this one:

https://debezium.io/documentation/reference/configuration/filtering.html


regards

-- 
Tomas Vondra
EnterpriseDB: http://www.enterprisedb.com
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