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The protected_versions() method was building a single queryset using |= (OR) operations that caused Django to generate a LEFT OUTER JOIN on core_publication across all repository versions (10,000+ rows), resulting in queries taking minutes in large databases. Rewritten to collect protected version PKs from separate simple queries against Distribution and Publication tables, then return a simple filter(pk__in=...). Also defer the content_ids ArrayField in cleanup_old_versions since it can contain hundreds of thousands of UUIDs per version and is not needed by version.delete(). fixes: #7594 Assisted By: claude-opus-4.6 (cherry picked from commit 262c83d)
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dralley
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Apr 19, 2026
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This is a backport of PR #7603 as merged into main (262c83d).
The protected_versions() method was building a single queryset using |= (OR) operations that caused Django to generate a LEFT OUTER JOIN on core_publication across all repository versions (10,000+ rows), resulting in queries taking minutes in large databases.
Rewritten to collect protected version PKs from separate simple queries against Distribution and Publication tables, then return a simple filter(pk__in=...).
Also defer the content_ids ArrayField in cleanup_old_versions since it can contain hundreds of thousands of UUIDs per version and is not needed by version.delete().
fixes: #7594
Assisted By: claude-opus-4.6
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