message: Adding more tests for mismatches function
diff: @@ -90,3 +90,23 @@ SELECT mismatches('', s) FROM strings ORDER BY s
  statement error
  SELECT mismatches(s, '') FROM strings ORDER BY s
  +
  +
  +statement ok
  +DROP TABLE strings
  +
  +statement ok
  +CREATE TABLE strings(s VARCHAR)
  +
  +statement ok
  +INSERT INTO strings VALUES ('hello'), ('halo'), (NULL)
  +
  +
  +# incorrect usage
  +
  +statement error
  +SELECT mismatches(s, 'hallo') FROM strings
  +
  +statement error
  +SELECT mismatches('hallo', s) FROM strings
  +
  