[jira] [Created] (CARBONDATA-1801) Remove unnecessary mdk computation code

[Akash R Nilugal (Jira)]

jiangmanhua created CARBONDATA-1801:
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             Summary: Remove unnecessary mdk computation code
                 Key: CARBONDATA-1801
                 URL: https://issues.apache.org/jira/browse/CARBONDATA-1801
             Project: CarbonData
          Issue Type: Improvement
            Reporter: jiangmanhua
            Priority: Minor


In `org.apache.carbondata.core.datastore.page.key.TablePageKey#update`, argument `mdk` can be reused to avoid duplicate computation for mdk by replacing  `WriteStepRowUtil.getMdk(row, mdkGenerator)`


Original Code:
{code:java}

  /** update all keys based on the input row */
  public void update(int rowId, CarbonRow row, byte[] mdk) throws KeyGenException {
    if (hasNoDictionary) {
      currentNoDictionaryKey = WriteStepRowUtil.getNoDictAndComplexDimension(row);
    }
    if (rowId == 0) {
      startKey = WriteStepRowUtil.getMdk(row, mdkGenerator);
      noDictStartKey = currentNoDictionaryKey;
    }
    noDictEndKey = currentNoDictionaryKey;
    if (rowId == pageSize - 1) {
      endKey = WriteStepRowUtil.getMdk(row, mdkGenerator);
      finalizeKeys();
    }
  }
{code}

https://github.com/apache/carbondata/blob/74226907990cdee41a6ccbd69e2a813077792f89/core/src/main/java/org/apache/carbondata/core/datastore/page/key/TablePageKey.java#L66




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