PRAGMA page_size = 1024;
  PRAGMA auto_vacuum = incremental;

  CREATE TABLE t1(x);
  CREATE TABLE t2(x);
  CREATE TABLE t3(x);


  INSERT INTO t3 VALUES(randomblob(131572));
  INSERT INTO t1 VALUES(randomblob(1500));
  INSERT INTO t2 VALUES(randomblob(131572));

  DELETE FROM t3;
  DELETE FROM t2;
  DELETE FROM t1;


  PRAGMA incremental_vacuum(248)


  PRAGMA incremental_vacuum(1)


  PRAGMA integrity_check;