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 ------ master Details ------- https://git.postgresql.org/pg/commitdiff/03480907e9ff5d9bb3296b56c9b49db3df756e0f Modified Files -------------- doc/src/sgml/ref/drop_subscription.sgml | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
