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create table t1 ( pk int primary key, a int, b int ); create table t2 ( pk int primary key, a int, b int ); insert into t1 values ( 1 , 0, 1), ( 2 , 0, 2), ( 3 , 1, 4), ( 4 , 1, 8), ( 5 , 2, 32), ( 6 , 2, 64), ( 7 , 2, 128), ( 8 , 2, 16); insert into t2 values ( 1 , 0, 2), ( 2 , 0, 2), ( 3 , 1, 4), ( 4 , 1, 4), ( 5 , 2, 16), ( 6 , 2, 64), ( 7 , 2, 128), ( 8 , 2, 16); # Test bit functions on only one partition. select pk, a, b, bit_or(b) over (order by pk) as bit_or, bit_and(b) over (order by pk) as bit_and, bit_xor(b) over (order by pk) as bit_xor from t1; pk a b bit_or bit_and bit_xor 1 0 1 1 1 1 2 0 2 3 0 3 3 1 4 7 0 7 4 1 8 15 0 15 5 2 32 47 0 47 6 2 64 111 0 111 7 2 128 239 0 239 8 2 16 255 0 255 select pk, a, b, bit_or(b) over (order by pk) as bit_or, bit_and(b) over (order by pk) as bit_and, bit_xor(b) over (order by pk) as bit_xor from t2; pk a b bit_or bit_and bit_xor 1 0 2 2 2 2 2 0 2 2 2 0 3 1 4 6 0 4 4 1 4 6 0 0 5 2 16 22 0 16 6 2 64 86 0 80 7 2 128 214 0 208 8 2 16 214 0 192 # Test multiple partitions with bit functions. select pk, a, b, bit_or(b) over (partition by a order by pk) as bit_or, bit_and(b) over (partition by a order by pk) as bit_and, bit_xor(b) over (partition by a order by pk) as bit_xor from t1; pk a b bit_or bit_and bit_xor 1 0 1 1 1 1 2 0 2 3 0 3 3 1 4 4 4 4 4 1 8 12 0 12 5 2 32 32 32 32 6 2 64 96 0 96 7 2 128 224 0 224 8 2 16 240 0 240 select pk, a, b, bit_or(b) over (partition by a order by pk) as bit_or, bit_and(b) over (partition by a order by pk) as bit_and, bit_xor(b) over (partition by a order by pk) as bit_xor from t2; pk a b bit_or bit_and bit_xor 1 0 2 2 2 2 2 0 2 2 2 0 3 1 4 4 4 4 4 1 4 4 4 0 5 2 16 16 16 16 6 2 64 80 0 80 7 2 128 208 0 208 8 2 16 208 0 192 # Test remove function for bit functions using a sliding window. select pk, a, b, bit_or(b) over (partition by a order by pk ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING) as bit_or, bit_and(b) over (partition by a order by pk) as bit_and, bit_xor(b) over (partition by a order by pk) as bit_xor from t1; pk a b bit_or bit_and bit_xor 1 0 1 3 1 1 2 0 2 3 0 3 3 1 4 12 4 4 4 1 8 12 0 12 5 2 32 96 32 32 6 2 64 224 0 96 7 2 128 208 0 224 8 2 16 144 0 240 select pk, a, b, bit_or(b) over (partition by a order by pk) as bit_or, bit_and(b) over (partition by a order by pk) as bit_and, bit_xor(b) over (partition by a order by pk) as bit_xor from t2; pk a b bit_or bit_and bit_xor 1 0 2 2 2 2 2 0 2 2 2 0 3 1 4 4 4 4 4 1 4 4 4 0 5 2 16 16 16 16 6 2 64 80 0 80 7 2 128 208 0 208 8 2 16 208 0 192 drop table t1; drop table t2;