text: -- fts3snippet.test
  -- 
  -- execsql {
  --       DROP TABLE IF EXISTS ft;
  --       CREATE VIRTUAL TABLE ft USING fts3(a, b);
  --       INSERT INTO ft VALUES(v1, numbers);
  --       INSERT INTO ft VALUES(v1, NULL);
  -- }
  DROP TABLE IF EXISTS ft;
  CREATE VIRTUAL TABLE ft USING fts3(a, b);
  INSERT INTO ft VALUES(v1, numbers);
  INSERT INTO ft VALUES(v1, NULL);
  