Update welearn_database/data/models/corpus_related.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: lpi-tn

welearn_database/data/models/corpus_related.py

@@ -106,11 +106,11 @@ class CorpusNameEmbeddingModelLang(Base):
     __tablename__ = "corpus_name_embedding_model_lang"
     __table_args__ = {"schema": schema_name}
     __read_only__ = True
-    source_name: Mapped[str] = mapped_column(primary_key=True)
-    corpus_id: Mapped[UUID]
+    source_name: Mapped[str] = mapped_column()
+    corpus_id: Mapped[UUID] = mapped_column(primary_key=True)
     embedding_model_id: Mapped[UUID]
     title: Mapped[str]
-    lang: Mapped[str]
+    lang: Mapped[str] = mapped_column(primary_key=True)
     used_since: Mapped[datetime]
     category_id: Mapped[UUID]