text: -- original: tkt-9f2eb3abac.test
  -- credit:   http://www.sqlite.org/src/tree?ci=trunk&name=test
  
  CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,d,e));
    SELECT * FROM t1 WHERE a=? AND b=? AND c=? AND d=? AND e=?
  ;CREATE TABLE "a" (
        "b" integer NOT NULL,
        "c" integer NOT NULL,
        PRIMARY KEY ("b", "c")
        );
  
    CREATE TABLE "d" (
        "e" integer NOT NULL,
        "g" integer NOT NULL,
        "f" integer NOT NULL,
        "h" integer NOT NULL,
        "i" character(10) NOT NULL,
        "j" int,
        PRIMARY KEY ("e", "g", "f", "h")
        );
  
    CREATE TABLE "d_to_a" (
        "f_e" integer NOT NULL,
        "f_g" integer NOT NULL,
        "f_f" integer NOT NULL,
        "f_h" integer NOT NULL,
        "t_b" integer NOT NULL,
        "t_c" integer NOT NULL,
        "r" character NOT NULL,
        "s" integer,
        PRIMARY KEY ("f_e", "f_g", "f_f", "f_h", "t_b", "t_c")
        );
  
    INSERT INTO d (g, e, h, f, j, i) VALUES ( 1, 1, 1, 1, 1, 1 );
    INSERT INTO a (b, c) VALUES ( 1, 1 );
    INSERT INTO d_to_a VALUES (1, 1, 1, 1, 1, 1, 1, 1);
  
    DELETE FROM d_to_a 
    WHERE f_g = 1 AND f_e = 1 AND f_h = 1 AND f_f = 1 AND t_b = 1 AND t_c = 1;
  
    SELECT * FROM d_to_a
  ;CREATE TABLE t1(a,b,c,d,e, PRIMARY KEY(a,b,c,d,e))
  ;CREATE TABLE t2(x)
  ;SELECT 1 FROM sqlite_master
  ;SELECT * FROM t1,t2 WHERE a=? AND b=? AND c=? AND d=? AND e=?;