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How to solve the CROSS JOIN problem in Spark SQL

2025-01-31 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >

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This article will explain in detail how to solve the CROSS JOIN problem in Spark SQL. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

1. The question is shown as follows:

Use the CROSS JOIN syntax to allow cartesian products between these relation

2. Reasons:

Cartesian product operation is not supported by default in Spark 2.x.

3. Solution:

Enable it with the parameter spark.sql.crossJoin.enabled, as follows:

Spark.conf.set ("spark.sql.crossJoin.enabled", "true") about how to solve the CROSS JOIN problem in Spark SQL is shared here. I hope the above content can be helpful to everyone and learn more knowledge. If you think the article is good, you can share it for more people to see.

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