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How to customize the partition of JDBCRDD

Shulou Source: shulou.com Published: 2022-06-01 09:34:15 09月26日 Update

This article mainly explains "how to customize the partition of JDBCRDD", the content of the explanation in the article is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in depth, together to study and learn "how to customize the partition of JDBCRDD"!

1. JDBCRDD uses

Val data = new JdbcRDD (sc, getConnection

, "SELECT id,aa FROM bbb where?

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