Phillip Cloud created ARROW-1761:
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Summary: Multi argument operator kernel behavior for decimal
columns
Key: ARROW-1761
URL: https://issues.apache.org/jira/browse/ARROW-1761
Project: Apache Arrow
Issue Type: Bug
Components: C++, Java - Vectors
Affects Versions: 0.7.1
Reporter: Phillip Cloud
Assignee: Phillip Cloud
Priority: Major
This is a JIRA to discuss the behavior of operator kernels that require more
than one decimal column input where the column types have a different {{scale}}
parameter.
For example:
{code}
a: decimal(12, 2)
b: decimal(10, 3)
c = a + b
{code}
Arithmetic is the primary use case, but anything that needs to efficiently
operate on decimal columns with different scales would require this
functionality.
I imagine that @jacques-n and folks at Dremio have thought about and solved the
problem in Java. If so, we should consider implementing this behavior in C++.
Otherwise, I'll do a bit of reading and digging to see how existing systems
efficiently handle this problem.
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