92. Databricks | Pyspark | Interview Question | Performance Optimization: Select vs WithColumn

Описание: Azure Databricks Learning: Interview Question | Performance Optimization: Select vs WithColumn
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What is the difference between pyspark functions select and withcolumn?

Select and withcolumn both are used to add new columns to existing dataframe. But select outperforms withcolumn. The reason behind this difference is explained in this video.

To get through understanding of this concept, please watch this video


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