fix: coalesce AQE shuffle partitions per alignment group - #2181

Draft

andygrove wants to merge 10 commits into

apache:mainfrom

andygrove:aqe-coalesce-alignment-groups

Commits on Jul 25, 2026

refactor(scheduler): let the AQE coalesce slot be cleared
andygrove
committed
232d761
refactor(scheduler): extract sum_sizes and decide from the coalesce rule
andygrove
committed
dc460ea
fix(scheduler): read coalesce M from the resolved shuffle shape
andygrove
committed
c2ca76e
feat(scheduler): coalesce AQE shuffle partitions per alignment group
andygrove
committed
cfc6eab
test(scheduler): cover mixed-broadcast and heterogeneous-M coalesce stages
andygrove
committed
bb8da56
test(scheduler): fix formatting and assert shared coalesce plan across leaves
andygrove
committed
a2ed9c8
fix(scheduler): address review of the AQE coalesce rewrite
andygrove
committed
e0b34f1
fix(scheduler): exclude pass-through exchanges from coalesce alignment groups
andygrove
committed
132d84c
docs(scheduler): fix stale algorithm summary and note broadcast-check ordering
andygrove
committed
3722f2d
refactor(scheduler): tighten the AQE coalesce rule after review
andygrove
committed
b839f03