Move from pg_trgm to full-text search for autofill

app/src/api/services/autofill.ts

@@ -6,9 +6,12 @@ const autofillFunctionMap = {
 
 function getLanduseClassOptions(value: string) {
     return db.manyOrNone(`
-        SELECT landuse_id AS id, description as value, similarity(description, $1) AS similarity
+        SELECT
+            landuse_id AS id,
+            description as value,
+            ts_rank(to_tsvector(description), plainto_tsquery($1)) as similarity
         FROM reference_tables.buildings_landuse_class
-        WHERE description % $1
+        WHERE to_tsvector(description) @@ plainto_tsquery($1)
         ORDER BY similarity DESC, description
         `, [value]
     );