Comment by practicalswift

These are the crashing statements:

  SELECT n()AND+#0;
  SELECT strftime()
  DETACH(SELECT group_concat(q));
  DROP TABLE IF EXISTS t0; CREATE TABLE t0(t);
  INSERT INTO t0 SELECT strftime();
  SELECT quote(t) FROM t0

See https://www.sqlite.org/src/info/fe578863313128 for the patch.