Expand description
Planner value-distribution summaries (estimates, never results). Planner value-distribution summaries: estimates only, never query results.
Structs§
- Histogram
- Value-domain shape of one
(kind, pid)for planner estimates: exact extrema and distinct count, plus an equi-width histogram over the order-preserving payload space. Computed on demand from the value dictionary; never a query result.
Constants§
- VALUE_
DISTRIBUTION_ BUCKETS - Number of equi-width buckets in a
Histogram.