Re: Minimal logical decoding on standbys

Andres Freund <andres@anarazel.de>

From: Andres Freund <andres@anarazel.de>
To: "Drouvot, Bertrand" <bertranddrouvot.pg@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Alvaro Herrera <alvherre@2ndquadrant.com>, Ibrar Ahmed <ibrar.ahmad@gmail.com>, Amit Khandekar <amitdkhan.pg@gmail.com>, fabriziomello@gmail.com, tushar <tushar.ahuja@enterprisedb.com>, Rahila Syed <rahila.syed@2ndquadrant.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2022-12-16T13:51:58Z
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 →
  1. Reduce the log level in 035_standby_logical_decoding.pl.

  2. 035_standby_logical_decoding: Add missing waits for replication

  3. For cascading replication, wake physical and logical walsenders separately

  4. Handle logical slot conflicts on standby

  5. Support invalidating replication slots due to horizon and wal_level

  6. Prevent use of invalidated logical slot in CreateDecodingContext()

  7. Replace replication slot's invalidated_at LSN with an enum

  8. Pass down table relation into more index relation functions

  9. Assert only valid flag bits are passed to visibilitymap_set()

  10. Remove unused _bt_delitems_delete() argument.

  11. Add xl_btree_delete optimization.

Hi,

On 2022-12-16 11:33:50 +0100, Drouvot, Bertrand wrote:
> @@ -235,13 +236,14 @@ typedef struct xl_btree_delete
>  	TransactionId snapshotConflictHorizon;
>  	uint16		ndeleted;
>  	uint16		nupdated;
> +	bool        mayConflictInLogicalDecoding;

After 1489b1ce728 the name mayConflictInLogicalDecoding seems odd. Seems
it should be a riff on snapshotConflictHorizon?

Greetings,

Andres Freund