ProbeShape	crates/gravity/lowerv4/src/ops/hashjoin/spill/build.rs	alone	lifetime	-	missing pipelines, a build with no breaker or a catalog probe keep the build resident	nested loop	A nested loop that Gravity runs as a hash lookup into its inner side (a primary-key lookup, a keyed nested loop, or an inner aggregate, sort or CTE built once) keeps that lookup table in memory where PostgreSQL holds no such table, so the statement fails with an out-of-memory error when the server has no more memory to give it.
