VIEW.EXPLAIN
Explain a view's composition tree with per-leaf cardinalities.
VIEW.EXPLAIN nameComplexity
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
Complexity and compatibility are read out of kevy's implementation, not copied from Redis's reference. Several genuinely differ.
Redis compatibility
kevy only
kevy has this; Redis does not. nearest is FT.EXPLAIN, which returns a query tree rather than per-leaf cardinalities
See also
VIEW.CREATEVIEW.DROPVIEW.LISTVIEW.QUERYVIEW.REBUILDVIEW.VERIFY