EndHashBuild	crates/gravity/lowerv4/src/ops/hashjoin/spill/build.rs	pair_end	lifetime	D4054	a probe ending in another hash build keeps the build resident	hash join	A hash join whose rows become the hash table of another hash join 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.
