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### What changes were proposed in this pull request? A query below failed in the master; ``` scala> sql("select array(array(1, 2), array(3)) ar").select(explode(explode($"ar"))).show() 20/03/01 13:51:56 ERROR Executor: Exception in task 0.0 in stage 0.0 (TID 0)/ 1] java.lang.ClassCastException: scala.collection.mutable.ArrayOps$ofRef cannot be cast to org.apache.spark.sql.catalyst.util.ArrayData at org.apache.spark.sql.catalyst.expressions.ExplodeBase.eval(generators.scala:313) at org.apache.spark.sql.execution.GenerateExec.$anonfun$doExecute$8(GenerateExec.scala:108) at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484) at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490) at scala.collection.Iterator$ConcatIterator.hasNext(Iterator.scala:222) at scala.collection.Iterator$$anon$10.hasNext(Iterator.scala:458) ... ``` This pr modified the `hasNestedGenerator` code in `ExtractGenerator` for correctly catching nested inner generators. ### Why are the changes needed? A bug fix. ### Does this PR introduce any user-facing change? No. ### How was this patch tested? Added tests. Closes #27750 from maropu/HandleNestedGenerators. Authored-by: Takeshi Yamamuro <yamamuro@apache.org> Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org> |
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benchmarks | ||
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v1.2/src | ||
v2.3/src | ||
pom.xml |