Advanced SQL join table cardinality estimates
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YouTubeInterSystems Developers
Advanced SQL join table cardinality estimates
Thomas Henchel presents his team’s recent work on improving cardinality estimates in SQL query optimizers - a key factor that affects join ordering and query performance. The team implemented a new state-of-the-art estimation method based on 2023 research. When tested on benchmark queries, most results showed no change, but around 21% of ...
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