Imported once from the PostgreSQL 14 cluster, whose embeddings were converted to real[] and whose pgvecto.rs extension was dropped first (immich's manual migration). After the import the columns become vector(512) again under VectorChord 1.1.1 with pgvector 0.8.6. A logical import because CNPG can't upgrade in place from the bullseye-based pgvecto.rs image to the bookworm-based VectorChord one.
