[jira] [Created] (SPARK-36329) show api of Dataset should get as input the output method

["Izek Greenfield (Jira)" <ji...@apache.org>]

Izek Greenfield created SPARK-36329:
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             Summary: show api of Dataset should get as input the output method
                 Key: SPARK-36329
                 URL: https://issues.apache.org/jira/browse/SPARK-36329
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 3.1.2
            Reporter: Izek Greenfield


For now show is: 

{code:scala}
def show(numRows: Int, truncate: Boolean): Unit = if (truncate) {
    println(showString(numRows, truncate = 20))
  } else {
    println(showString(numRows, truncate = 0))
  }
{code}

it can be turn into:


{code:scala}
def show(numRows: Int, truncate: Boolean, out: Any => Unit = println): Unit = if (truncate) {
    out(showString(numRows, truncate = 20))
  } else {
    out(showString(numRows, truncate = 0))
  }
{code}

so user will be able to send that to file/log...





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