SinkNotEndSink	crates/gravity/lowerv4/src/ops/hashjoin/spill/build.rs	pair_end	lifetime	-	a sink end that is not the client's sink keeps the build resident	hash join	A hash join directly under an uncorrelated scalar subquery, EXISTS, ARRAY(SELECT ...) or row comparison keeps its whole hash table in memory where PostgreSQL would spill it to disk, so the statement fails with an out-of-memory error when the server has no more memory to give it.
