Sets, recursion and comparison context
Check exact sets, distinct graph nodes, collations, affinity and unknown ordering.
Why does an exact-tag report admit a profile with extra tags?
Check missing and extra set members in both directions.
Why does a recursive reachability report repeat the same downstream node?
Queue distinct node records when the result is a set of reachable consumers.
Why are case-sensitive report labels grouped together?
Apply the report’s comparison rule at GROUP BY.
Why does a quoted number fail against an integer SUM?
Compare a numeric aggregate with a numeric target.
Why does an unknown estimate lead a smallest-effort list?
Place unknowns after known estimates without converting them to zero.