def test_relabel_join():
names = Symbol('names', 'var * {first: string, last: string}')
siblings = join(names.relabel({'last': 'left'}),
names.relabel({'last': 'right'}), 'first')
assert siblings.fields == ['first', 'left', 'right']
def test_relabel_join():
names = Symbol('names', 'var * {first: string, last: string}')
siblings = join(names.relabel({'first': 'left'}),
names.relabel({'first': 'right'}),
'last')[['left', 'right']]
data = [('Alice', 'Smith'), ('Bob', 'Jones'), ('Charlie', 'Smith')]
print(set(compute(siblings, {names: data})))
assert ('Alice', 'Charlie') in set(compute(siblings, {names: data}))
assert ('Alice', 'Bob') not in set(compute(siblings, {names: data}))
def test_relabel_join():
names = Symbol('names', 'var * {first: string, last: string}')
siblings = join(names.relabel({'first': 'left'}),
names.relabel({'first': 'right'}),
'last')[['left', 'right']]
data = [('Alice', 'Smith'),
('Bob', 'Jones'),
('Charlie', 'Smith')]
print(set(compute(siblings, {names: data})))
assert ('Alice', 'Charlie') in set(compute(siblings, {names: data}))
assert ('Alice', 'Bob') not in set(compute(siblings, {names: data}))
def test_relabel():
t = Symbol('t', 'var * {name: string, amount: int32, id: int32}')
rl = t.relabel({'name': 'NAME', 'id': 'ID'})
rlc = t['amount'].relabel({'amount': 'BALANCE'})
assert eval(str(rl)).isidentical(rl)
print(rl.fields)
assert rl.fields == ['NAME', 'amount', 'ID']
assert not isscalar(rl.dshape.measure)
assert isscalar(rlc.dshape.measure)
