Cardinality Estimation (RDBMS)
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The query planner’s estimate of how many rows each step of the query will produce. Inaccurate estimates (due to stale statistics or correlated columns) lead to suboptimal plans.
← Back to Query Planner
The query planner’s estimate of how many rows each step of the query will produce. Inaccurate estimates (due to stale statistics or correlated columns) lead to suboptimal plans.