On Mon, Jan 19, 2026 at 11:35:28PM +0800, Xuneng Zhou wrote: > On Mon, Jan 19, 2026 at 8:13 AM Michael Paquier <[email protected]> wrote: >> I think that >> there would be a point in expanding the SQL functions to report more >> states of the startup process, including the data received by the >> startup process, but we should not link that to the state of the WAL >> receiver. An extra reason to not do that: WAL receivers are not the >> only source feeding data to the startup process, we could have data >> pushed to pg_wal/, or archive commands/modules doing this job. > > +1. I'll prepare a separate patch to expose startup process metrics > like pg_stat_get_wal_receiver does. This would complement > pg_stat_wal_receiver without coupling the two subsystems.
In this area, I mean to expose the contents of XLogRecoveryCtlData at SQL level. It may be better to move this structure to a header, and have the new SQL function in xlogfuncs.c. That's at least how I would shape such a change. -- Michael
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