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fix(migration): deduplicate languages before LOWER() in 025_lowercase_languages.sql
Two rows (Néerlandais id=5, néerlandais id=3) collided when lowercased, violating the UNIQUE constraint on languages.name. Added DELETE to keep the lowest-ID row per LOWER(name) group before the UPDATE SET name = LOWER(name).
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@@ -1,6 +1,14 @@
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-- 025_lowercase_languages.sql
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-- Normalise les noms de langues en minuscules et recrée la vue avec ucfirst.
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-- Supprimer les doublons (même nom après LOWER) en gardant l'id le plus petit
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DELETE FROM languages
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WHERE id NOT IN (
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SELECT MIN(id)
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FROM languages
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GROUP BY LOWER(name)
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);
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-- Normaliser les langues existantes
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UPDATE languages SET name = LOWER(name);
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