jiaan.geng created SPARK-30110:

             Summary: Support type judgment for ArrayData
                 Key: SPARK-30110
                 URL: https://issues.apache.org/jira/browse/SPARK-30110
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.4.0
            Reporter: jiaan.geng
             Fix For: 3.0.0

ArrayData is only some interfaces for getting data, such as: getBoolean, 

When the element type of array is unknow, I want to judgment the element type 

I have PR working in process:


The array function ArrayNDims is used to get the Dimension of array.

If ArrayData can support some interfaces like isBoolean, isByte, isArray, My 
job will be easier.

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