eschutho commented on a change in pull request #19421:
URL: https://github.com/apache/superset/pull/19421#discussion_r840782172
##########
File path: superset/migrations/versions/b8d3a24d9131_new_dataset_models.py
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@@ -150,55 +176,66 @@ def fetch_columns_and_metrics(self, session: Session) ->
None:
Base.metadata,
sa.Column("table_id", sa.ForeignKey("sl_tables.id")),
sa.Column("column_id", sa.ForeignKey("sl_columns.id")),
+ UniqueConstraint("table_id", "column_id"),
Review comment:
For people who have already run this migration, we won't get anything
new that's added in this update. Can we instead create a new migration for any
additions or changes that won't affect performance?
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