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Merged
tseaver merged 4 commits into from
Oct 30, 2018
Merged

Spanner: Test return empty array struct #4449

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28dd0f6
empty struct array
chemelnucfin Nov 25, 2017
d1c87d1
Merge branch 'master' into spanner_empty_struct
tseaver Oct 25, 2018
65b5311
Use current pattern.
tseaver Oct 25, 2018
abb1186
Lint.
tseaver Oct 25, 2018
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19 changes: 19 additions & 0 deletions spanner/tests/system/test_system.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1535,6 +1535,25 @@ def test_execute_sql_returning_array_of_struct(self):
[[['a', 1], ['b', 2]]],
])

def test_execute_sql_returning_empty_array_of_struct(self):
SQL = (
"SELECT ARRAY(SELECT AS STRUCT C1, C2 "
"FROM (SELECT 2 AS C1) X "
"JOIN (SELECT 1 AS C2) Y "
"ON X.C1 = Y.C2 "
"ORDER BY C1 ASC)"
)
self._db.snapshot(multi_use=True)

self._check_sql_results(
self._db,
sql=SQL,
params=None,
param_types=None,
expected=[
[[]],
])

def test_invalid_type(self):
table = 'counters'
columns = ('name', 'value')
Expand Down