def test_cython_right_outer_join(self):
left = a_([0, 1, 2, 1, 2, 0, 0, 1, 2, 3, 3], dtype=np.int64)
right = a_([1, 1, 0, 4, 2, 2, 1], dtype=np.int64)
max_group = 5
rs, ls = _join.left_outer_join(right, left, max_group)
exp_ls = left.argsort(kind='mergesort')
exp_rs = right.argsort(kind='mergesort')
# 0 1 1 1
exp_li = a_([0, 1, 2, 3, 4, 5, 3, 4, 5, 3, 4, 5,
# 2 2 4
6, 7, 8, 6, 7, 8, -1])
exp_ri = a_([0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3,
4, 4, 4, 5, 5, 5, 6])
exp_ls = exp_ls.take(exp_li)
exp_ls[exp_li == -1] = -1
exp_rs = exp_rs.take(exp_ri)
exp_rs[exp_ri == -1] = -1
self.assert_numpy_array_equal(ls, exp_ls, check_dtype=False)
self.assert_numpy_array_equal(rs, exp_rs, check_dtype=False)
def test_cython_right_outer_join(self):
left = a_([0, 1, 2, 1, 2, 0, 0, 1, 2, 3, 3], dtype=np.int64)
right = a_([1, 1, 0, 4, 2, 2, 1], dtype=np.int64)
max_group = 5
rs, ls = _join.left_outer_join(right, left, max_group)
exp_ls = left.argsort(kind='mergesort')
exp_rs = right.argsort(kind='mergesort')
# 0 1 1 1
exp_li = a_([
0,
1,
2,
3,
4,
5,
3,
4,
5,
3,
4,
5,
# 2 2 4
6,
7,
8,
6,
7,
8,
-1
])
exp_ri = a_([0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6])
exp_ls = exp_ls.take(exp_li)
exp_ls[exp_li == -1] = -1
exp_rs = exp_rs.take(exp_ri)
exp_rs[exp_ri == -1] = -1
self.assert_numpy_array_equal(ls, exp_ls, check_dtype=False)
self.assert_numpy_array_equal(rs, exp_rs, check_dtype=False)
def test_left_outer_join_bug():
left = np.array([0, 1, 0, 1, 1, 2, 3, 1, 0, 2, 1, 2, 0, 1, 1, 2, 3, 2, 3,
2, 1, 1, 3, 0, 3, 2, 3, 0, 0, 2, 3, 2, 0, 3, 1, 3, 0, 1,
3, 0, 0, 1, 0, 3, 1, 0, 1, 0, 1, 1, 0, 2, 2, 2, 2, 2, 0,
3, 1, 2, 0, 0, 3, 1, 3, 2, 2, 0, 1, 3, 0, 2, 3, 2, 3, 3,
2, 3, 3, 1, 3, 2, 0, 0, 3, 1, 1, 1, 0, 2, 3, 3, 1, 2, 0,
3, 1, 2, 0, 2], dtype=np.int64)
right = np.array([3, 1], dtype=np.int64)
max_groups = 4
lidx, ridx = _join.left_outer_join(left, right, max_groups, sort=False)
exp_lidx = np.arange(len(left))
exp_ridx = -np.ones(len(left))
exp_ridx[left == 1] = 1
exp_ridx[left == 3] = 0
assert (np.array_equal(lidx, exp_lidx))
assert (np.array_equal(ridx, exp_ridx))
def test_left_outer_join_bug():
left = np.array([
0, 1, 0, 1, 1, 2, 3, 1, 0, 2, 1, 2, 0, 1, 1, 2, 3, 2, 3, 2, 1, 1, 3, 0,
3, 2, 3, 0, 0, 2, 3, 2, 0, 3, 1, 3, 0, 1, 3, 0, 0, 1, 0, 3, 1, 0, 1, 0,
1, 1, 0, 2, 2, 2, 2, 2, 0, 3, 1, 2, 0, 0, 3, 1, 3, 2, 2, 0, 1, 3, 0, 2,
3, 2, 3, 3, 2, 3, 3, 1, 3, 2, 0, 0, 3, 1, 1, 1, 0, 2, 3, 3, 1, 2, 0, 3,
1, 2, 0, 2
],
dtype=np.int64)
right = np.array([3, 1], dtype=np.int64)
max_groups = 4
lidx, ridx = _join.left_outer_join(left, right, max_groups, sort=False)
exp_lidx = np.arange(len(left))
exp_ridx = -np.ones(len(left))
exp_ridx[left == 1] = 1
exp_ridx[left == 3] = 0
assert (np.array_equal(lidx, exp_lidx))
assert (np.array_equal(ridx, exp_ridx))