[GitHub] [superset] zhaoyongjie edited a comment on issue #16134: Unneccessary Group BY Clause added to query; Missing Order by Clause

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zhaoyongjie edited a comment on issue #16134:
URL: https://github.com/apache/superset/issues/16134#issuecomment-894915297


   Hi @kevin-struckhoff. The Line Chart is a time-series chart, this means that there is always a time column in the query, in the other words, the data always is aggregated by time-column and other selected columns (group by control in this chart)
   
   and you need to define how to aggregate for column in the Metrics, your SQL seems that did not define aggregate for columns.


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