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Table 8 Accumulated execution time in minutes for 1250, 2500, 3750, and 5000 queries over PostgreSQL and Robust Cardinality

From: Robust Cardinality: a novel approach for cardinality prediction in SQL queries

Technique

1250

2500

3750

5000

PostgreSQL

285.14849

612.49828

906.34336

1210.44504

Robust Cardinality

277.09389

598.76837

886.04205

1182.96412

Difference

8.05460

13.72991

20.30131

27.48092