[jira] [Created] (SPARK-22668) CodegenContext.splitExpression() creates incorrect results with global variable arguments

[Kazuaki Ishizaki (JIRA)]

Kazuaki Ishizaki created SPARK-22668:
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             Summary: CodegenContext.splitExpression() creates incorrect 
results with global variable arguments 
                 Key: SPARK-22668
                 URL: https://issues.apache.org/jira/browse/SPARK-22668
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.0
            Reporter: Kazuaki Ishizaki


{{CodegenContext.splitExpression()}} creates incorrect results with arguments 
that were declared as global variable.

{code}
class Test {
  int global1;

  void splittedFunction(int global1) {
    ...
    global1 = 2;
  }

  void apply() {
    global1 = 1;
    ...
    splittedFunction(global1);
    // global1 should be 2
  }
}
{code}



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