django__django-12589

Django 3.0: "GROUP BY" clauses error with tricky field annotation

Verdict: the fix is stated in the issue (Tier A).

What needs to be adjust is sql.Query.set_group_by to set alias=None if alias is not None and alias in {... set of all column names of tables in alias_map ...} before calling annotation.get_group_by_cols

The text states the fix: “What needs to be adjust is sql.Query.set_group_by to set alias=None if alias is not None and alias in {... set of all column names of tables in alias_map ...} before cal…”

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