Teddy Choi created HIVE-11529:
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Summary: Loop optimization for SIMD in IfExprLong*Long*
Key: HIVE-11529
URL: https://issues.apache.org/jira/browse/HIVE-11529
Project: Hive
Issue Type: Sub-task
Components: Vectorization
Reporter: Teddy Choi
Assignee: Teddy Choi
HIVE-10238 showed that ?: operator can be optimized with bitwise operators when
it only handles LongColumnVectors. There are more similar cases as following.
IfExprLongColumnLongScalar: {code}outputVector[i] = (vector1[i] == 1 ?
vector2[i] : arg3Scalar);{code}
IfExprLongScalarLongColumn: {code}outputVector[i] = (vector1[i] == 1 ?
arg2Scalar : vector3[i]);{code}
IfExprLongScalarLongScalar: {code}outputVector[i] = (vector1[i] == 1 ?
arg2Scalar : arg3Scalar);{code}
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