[jira] [Created] (KYLIN-2127) UI bug fix for Extend Column

["kangkaisen (JIRA)" <ji...@apache.org>]

kangkaisen created KYLIN-2127:
---------------------------------

             Summary: UI bug fix for Extend Column
                 Key: KYLIN-2127
                 URL: https://issues.apache.org/jira/browse/KYLIN-2127
             Project: Kylin
          Issue Type: Bug
          Components: Web 
    Affects Versions: v1.5.4.1
            Reporter: kangkaisen
            Assignee: kangkaisen


In the 1.5.4.1 version of Kylin. we firstly add a new SUM(MAX, MIN...) measure and then add a Extend Column measure, finally save the cube will fail.
Because of the json data of Extend Column measure is like this:
{{    {
      "name": "周起始日",
      "function": {
        "expression": "EXTENDED_COLUMN",
        "returntype": "extendedcolumn(100)",
        "parameter": {
          "type": "column",
          "value": "WK",
          "next_parameter": {
            "type": "column",
            "value": "WK_FROM",
            "next_parameter": {}
          }
        },
        "configuration": null
      }
    },}}.
the last {{next_parameter}} is {}, it should be null.

This bug may be introduced by KYLIN-1767.



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