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## What changes were proposed in this pull request? The PR adds the SQL function `map_from_arrays`. The behavior of the function is based on Presto's `map`. Since SparkSQL already had a `map` function, we prepared the different name for this behavior. This function returns returns a map from a pair of arrays for keys and values. ## How was this patch tested? Added UTs Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com> Closes #21258 from kiszk/SPARK-23933. |
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