Only clear VACUUM's read stream strategy once in failsafe mode 112c2683807b4d690 restored failsafe vacuum's abandonment of a buffer access strategy by clearing the ReadBuffersOperations' strategy references. But it did so in lazy_scan_heap()'s main loop, meaning it looped through all the ReadBuffersOperations once per block after failsafe was engaged. Track it with a local flag and clear the strategy only once.
Reported-by: Melanie Plageman <[email protected]> Discussion: https://postgr.es/m/CAAKRu_Zse14nSNeCgtnE1LUAH8Of7OmYR%2BCc3O_DAzxt3m6T-g%40mail.gmail.com Backpatch-through: 18 Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/69800557ca32c493853b937916789f0f3da88efe Modified Files -------------- src/backend/access/heap/vacuumlazy.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
