Jinfeng Ni created DRILL-1391:
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Summary: Some math functions on decimal type may cause compilation
error in run-time generated code.
Key: DRILL-1391
URL: https://issues.apache.org/jira/browse/DRILL-1391
Project: Apache Drill
Issue Type: Bug
Reporter: Jinfeng Ni
Assignee: Jinfeng Ni
If a query has an expression like the following :
log((cast(DEC18 as decimal18(18, 9))))
Drill will hit an compilation error in the run-time generated code.
org.apache.drill.exec.rpc.RpcException: Screen received stop request sent. Line
189, Column 35: Cannot determine simple type name "BigDecimal"
[32dbdc99-a688-45c6-aa8f-50506be4730d].
The complained code is :
188: ExtendedMathFunctions$LogDecimal18_eval: {
189: double dblval = new
BigDecimal(in.value).setScale(in.scale).doubleValue();
190:
191: out.value = java.lang.Math.log(dblval);
192: }
The reason of this compilation error is that the function template for those
math functions miss fully qualifying the type of "BigDecimal", causing this
compilation error.
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