I have an FTS5 table with an ID column pointing to another table -- basically a foreign key: CREATE TABLE post(id INTEGER PRIMARY KEY, author TEXT); CREATE VIRTUAL TABLE post_fts USING fts5(id, body); Given that, should I join them on the id using = or MATCH? SELECT post.id FROM post INNER JOIN post_fts ON post_fts.id = post.id SELECT post.id FROM post INNER JOIN post_fts ON post_fts.id MATCH post.id While using = feels correct, I'm worried that it won't be as performant because FTS5 doesn't allow me to mark post_fts.id as a foreign key. Would it be faster to use MATCH, so it uses the FTS index to find the record?