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From Dave Birdsall <dave.birds...@esgyn.com>
Subject Review request
Date Mon, 22 Apr 2019 14:59:34 GMT
Hi,

I'm looking for a reviewer for this pull request: https://github.com/apache/trafodion/pull/1831

The associated JIRA is https://issues.apache.org/jira/browse/TRAFODION-3300

This is a change to how the ROUND function is evaluated for Big Num data types (that is, columns
of type NUMERIC(n,m) where n > 18). Formerly, the Binder would rewrite this as a rather
complicated expression in other functions. Unfortunately this rewrite was subject to overflows
for the largest Big Num data types. The pull request adds an explicit Big Num ROUND operator
to the expression evaluator which does not suffer from these overflows.

Thanks,

Dave



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