Some years ago we implemented FTS. At the time, we also added a column with the tsvector data type. We assumed we needed that for FTS to work. Later, we added tri-gram support. At the time, we assumed tri-gram complimented FTS. More recently, we have run into a problem with replicating the tsvector column. We now wonder if tri-gram alone can achieve a fast full text search result. If so, then we could the tsvector column be dropped? 1. Is FTS required for tri-gram to work? 2. Are these independent of each other? 3. Is tri-gram alone sufficient for a “full text search” feature? Any thoughts, experiences or other thoughts greatly appreciated. - Mark Phillips
