Clicking the title of a citation from an external knowledge base (Qdrant, Milvus, pgvector), or its Content link, opened a link to a file inside Open WebUI that does not exist, so the browser showed a not found error. These results are no longer treated as uploaded files, so when the citation's source is a web address both links open that page, and otherwise the title is plain text. This works whether or not the model uses native tool calling.
Fixes https://github.com/open-webui/open-webui/issues/32231
The inline citation markers in answers from external knowledge bases (Qdrant, Milvus, pgvector) showed the site's domain, for example docs.example.test, instead of the page title saved with each document. They now show that title, the same way a regular knowledge base shows the file name, and still fall back to the domain when a document has no title. Two different pages can share a title, so each marker now looks up its title by the page it points to; before, a repeated title made every later marker show the next page's title and the last one show nothing.
Fixes https://github.com/open-webui/open-webui/issues/31929
External knowledge bases on the pgvector provider failed on every search with "operator does not exist: vector <=> double precision[]", so they looked empty to users. This happened regardless of the VECTOR_DB setting.
The query embedding was bound as a plain Python list. register_vector only adapts pgvector's own Vector type and numpy arrays, so psycopg sent the list as a float array, which the <=> operator does not accept. Wrapping the embedding in pgvector.Vector sends it as a real vector.
Vector is imported from the package root, which works on the pinned pgvector 0.4.2 and on 0.5.x, where the pgvector.psycopg re-export no longer exists.
Verified against a pgvector Postgres: before the fix the reported error reproduces; after it, results come back ranked by cosine distance and filtered to the collection, including schema-qualified tables, halfvec columns and 1536-dimension embeddings.
Fixes#26663
Classic298