AngersZhuuuu opened a new pull request #25028: [SPARK-28227][SQL] Support TRANSFORM with aggregation. URL: https://github.com/apache/spark/pull/25028 ## What changes were proposed in this pull request? For Spark SQL, it can't support sql like : `SELECT TRANSFORM ( d2, max(d1) as maxd1, cast(sum(d3) as string))` `USING 'cat' AS (a,b,c)` `FROM script_trans` `WHERE d1 <= 100` `GROUP BY d2` `HAVING maxd1 > 0` But in hive, it can support this kind SQL. This makes our SQL migration difficult and complex。 This PR is to support use Aggregation with TRANSFORM and make SQL migration from Hive to Sparkeasier. ## How was this patch tested? Added unit test.
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