Don't duplicate parallel seqscan shmem sizing logic in nbtree. This is architecturally mildly problematic, which becomes more pronounced with the upcoming introduction of pluggable storage.
To fix, teach heap_parallelscan_estimate() to deal with SnapshotAny snapshots, and then use it from _bt_parallel_estimate_shared(). Author: Andres Freund Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/90525d7b4e0fe5ebd53960cd7ef59ee11ff06516 Modified Files -------------- src/backend/access/heap/heapam.c | 10 ++++++++-- src/backend/access/nbtree/nbtsort.c | 13 +++---------- 2 files changed, 11 insertions(+), 12 deletions(-)
