Pyspark Union, union(other: pyspark. Feb 21, 2022 · The PySpark union () function is used to combine two or more data frames having the same structure or schema. 1. Dec 8, 2022 · Learn how to union multiple pyspark dataframes using various methods, such as reduce, lambda, or partial functions. So what are you waiting for? Start learning today! Mar 3, 2026 · This article provides a comprehensive guide to PySpark interview questions and answers, covering topics from foundational concepts to advanced techniques and optimization strategies. See examples, error messages, and answers from experts and users. union (df2). To do a SQL-style set union (that does deduplication of elements), use this function followed by distinct (). DataFrame ¶ Return a new DataFrame containing union of rows in this and another DataFrame. What is the Union Operation in PySpark? The union method in PySpark DataFrames combines two or more DataFrames by stacking their rows vertically, returning a new DataFrame with all rows from the input DataFrames. fmsty01, bf3kqf, 8y3g, gvhei, s3, 0sn, l1imcb, pymaf, nr0, 9l,