VIEW.EXPLAINExplain a view's composition tree with per-leaf cardinalities.
| Syntax | VIEW.EXPLAIN name |
| Group | view |
| Arity | 2 |
| Since | 3.0.0 |
| Flags | readonly, extension |
| Complexity | O(sum over leaves of (log N + matched)) — each leaf's cardinality is a real count, so EXPLAIN on a broad leaf costs as much as counting it |
| Redis compatibility | kevy-only: nearest is FT.EXPLAIN, which returns a query tree rather than per-leaf cardinalities |