villebro commented on a change in pull request #17379:
URL: https://github.com/apache/superset/pull/17379#discussion_r798355557
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File path: superset/viz.py
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@@ -303,19 +308,30 @@ def process_query_filters(self) -> None:
merge_extra_filters(self.form_data)
utils.split_adhoc_filters_into_base_filters(self.form_data)
+ @staticmethod
+ def dedup_columns(*columns_args: Optional[List[Column]]) -> List[Column]:
+ # dedup groupby and columns while preserving order
+ labels: List[str] = []
+ deduped_columns: List[Column] = []
+ for columns in columns_args:
+ for column in columns or []:
+ label = get_column_name(column)
+ if label not in labels:
+ deduped_columns.append(column)
Review comment:
@mayurnewase do you have repro steps for this error?
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