Doc: Clarify DROP SUBSCRIPTION behavior after SET (slot_name = NONE). The previous text claimed that once the slot is disassociated with ALTER SUBSCRIPTION ... SET (slot_name = NONE), DROP SUBSCRIPTION "will no longer attempt any actions on a remote host". That is inaccurate: DROP SUBSCRIPTION may still connect to the publisher to drop internally-created table synchronization slots when some table synchronization is left unfinished. Reword to describe this, and note that if the publisher is unreachable those slots (and the main slot, if it still exists) must be dropped manually to avoid indefinitely reserving WAL.
Reported-by: Jeff Davis <[email protected]> Author: Amit Kapila <[email protected]> Backpatch-through: 14 Discussion: https://postgr.es/m/CAA4eK1+tyYSpPxMBy1974kjivuGeR7YY=yopwrgrk3+vcty...@mail.gmail.com Discussion: https://postgr.es/m/[email protected] Branch ------ REL_16_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/44fc102c003f44e5238000c26a884e0e000c441e Modified Files -------------- doc/src/sgml/ref/drop_subscription.sgml | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
