Use LIKE instead of =.

api_app.py

@@ -124,7 +124,7 @@ def select_frames(conn, n, from_, url_params):
     field_where = dictfilt(url_params, db_fields)
     # Then loop through fields to create query parts
     # From https://stackoverflow.com/a/73512269/2152245
-    field_where_str = ' AND '.join([f'"{k}" = \'{v}\'' for k,v in field_where.items()])
+    field_where_str = ' AND '.join([f'"{k}" LIKE \'{v}\'' for k,v in field_where.items()])
 
     cur = conn.cursor()
     # Workaround to deal with missing value in WHERE