# name: test/optimizer/join_reorder_optimizer.test
# description: Make sure we can emit a vaild join order by DPhyp if hypergraph is connected
# group: [optimizer]

statement ok
CREATE TABLE t1(c1 int, c2 int, c3 int, c4 int);

statement ok
INSERT INTO t1 VALUES (1, 1, 1, 1);

statement ok
INSERT INTO t1 VALUES (1, 1, 1, 1);

statement ok
CREATE TABLE t2 AS SELECT * FROM t1;

statement ok
INSERT INTO t2 VALUES (1, 1, 1, 1);

statement ok
CREATE TABLE t3 AS SELECT * FROM t2;

statement ok
INSERT INTO t2 VALUES (1, 1, 1, 1);

statement ok
CREATE TABLE t4 AS SELECT * FROM t3;

statement ok
INSERT INTO t2 VALUES (1, 1, 1, 1);

statement ok
PRAGMA debug_force_no_cross_product=true

statement ok
EXPLAIN
SELECT
  COUNT(*)
FROM
  t1, t2, t3, t4
WHERE
  t1.c1 = t2.c1 AND
  t2.c2 = t3.c2 AND
  t3.c3 = t4.c3

statement ok
EXPLAIN
SELECT
  COUNT(*)
FROM
  t1, t2, t3, t4
WHERE
  t1.c1 = t2.c1 AND
  t2.c2 = t3.c2 AND
  t3.c3 = t4.c3 AND
  t4.c4 = t1.c4

statement ok
EXPLAIN
SELECT
  COUNT(*)
FROM
  t1, t2, t3, t4
WHERE
  t1.c1 = t2.c1 AND
  t2.c2 = t3.c2 AND
  t1.c1 + t2.c2 + t3.c3= 3 * t4.c4

statement ok
PRAGMA debug_force_no_cross_product=false

statement ok
with
grid as (
    from (values ('ABC'), ('DEF')) as v(data)
    select
        unnest(split(data, '')) as letter,
        row_number() over () as row_id,
        generate_subscripts(split(data, ''), 1) AS col_id,
),
search(row_i, col_i, letter_to_match) as (
    values (0, 0, 'A'), (0, 1, 'B'),
)
from (from grid cross join search) as grid_searches
select exists(
    from grid as grid_to_search
    where 1=1
        and grid_searches.row_id = grid_to_search.row_id + grid_searches.row_i
        and grid_searches.col_id = grid_to_search.col_id + grid_searches.col_i
        and grid_searches.letter_to_match = grid_to_search.letter
)

statement ok
with
grid as (
    from (values ('ABC', 39), ('DEF', 50)) as v(data, row_id)
    select
        unnest(split(data, '')) as letter,
        row_id,
        generate_subscripts(split(data, ''), 1) AS col_id,
),
search(row_i, col_i, letter_to_match) as (
    values (0, 0, 'A'), (0, 1, 'B'),
)
from (from grid cross join search) as grid_searches
select exists(
    from grid as grid_to_search
    where 1=1
        and grid_searches.row_id = grid_to_search.row_id + grid_searches.row_i
        and grid_searches.col_id = grid_to_search.col_id + grid_searches.col_i
        and grid_searches.letter_to_match = grid_to_search.letter
)