Hi, I'm running few tests against Phoenix array and running into this bug where array elements return null values when a join is involved. Is this a known issue/limitation of arrays?
create table array_test_1 (id integer not null primary key, arr tinyint[5]); upsert into array_test_1 values (1001, array[0, 0, 0, 0, 0]); upsert into array_test_1 values (1002, array[0, 0, 0, 0, 1]); upsert into array_test_1 values (1003, array[0, 0, 0, 1, 1]); upsert into array_test_1 values (1004, array[0, 0, 1, 1, 1]); upsert into array_test_1 values (1005, array[1, 1, 1, 1, 1]); create table test_table_1 (id integer not null primary key, val varchar); upsert into test_table_1 values (1001, 'abc'); upsert into test_table_1 values (1002, 'def'); upsert into test_table_1 values (1003, 'ghi'); 0: jdbc:phoenix:localhost> select t1.id, t2.val, t1.arr[1], t1.arr[2], t1.arr[3] from array_test_1 as t1 join test_table_1 as t2 on t1.id = t2.id; +--------+---------+------------------------+------------------------+------------------------+ | T1.ID | T2.VAL | ARRAY_ELEM(T1.ARR, 1) | ARRAY_ELEM(T1.ARR, 2) | ARRAY_ELEM(T1.ARR, 3) | +--------+---------+------------------------+------------------------+------------------------+ | 1001 | abc | null | null | null | | 1002 | def | null | null | null | | 1003 | ghi | null | null | null | +--------+---------+------------------------+------------------------+------------------------+ 3 rows selected (0.056 seconds) However, directly selecting array elements from the array returns data correctly. 0: jdbc:phoenix:localhost> select t1.id, t1.arr[1], t1.arr[2], t1.arr[3] from array_test_1 as t1; +-------+---------------------+---------------------+---------------------+ | ID | ARRAY_ELEM(ARR, 1) | ARRAY_ELEM(ARR, 2) | ARRAY_ELEM(ARR, 3) | +-------+---------------------+---------------------+---------------------+ | 1001 | 0 | 0 | 0 | | 1002 | 0 | 0 | 0 | | 1003 | 0 | 0 | 0 | | 1004 | 0 | 0 | 1 | | 1005 | 1 | 1 | 1 | +-------+---------------------+---------------------+---------------------+ 5 rows selected (0.044 seconds)
