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How do you inspect candidate logical plans of cost-based SQL optimizer in spark (scala)?

score 49 · Answer 1 · 2024-09-12 11:49:24

How do you inspect candidate logical plans of cost-based SQL optimizer in spark (scala)?

score 3925 · Answer 2 · 2024-09-12 11:44:54

What is the role of Catalyst optimizer and Project Tungsten

score 57 · Answer 3 · 2024-09-20 08:23:55

Does Spark SQL optimize lower() on both sides?

score 225 · Answer 4 · 2024-09-17 20:47:46

225 views Asked by Zelazny7 At 17 September 2024 at 20:47

score 65 · Answer 5 · 2024-09-12 11:50:12

Apache Spark What is the difference between requiredChildDistribution and outputPartitioning?

score 2716 · Answer 6 · 2024-09-17 04:15:54

2.7k views Asked by Vijaya Bhaskar At 17 September 2024 at 04:15

score 1004 · Answer 7 · 2024-09-12 11:49:00

How to create custom Spark-Native functions without forking/modifying Spark itself

score 649 · Answer 8 · 2024-09-12 11:38:33

Spark optimize "DataFrame.explain" / Catalyst

score 219 · Answer 9 · 2024-09-12 11:42:44

Query Cassandra from Spark using CassandraSQLContext

score 106 · Answer 10 · 2024-09-12 11:49:23

is it possible to avoid second exchange when spark joins two datasets using joinWith?

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