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https://issues.apache.org/jira/browse/DRILL-6710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16597884#comment-16597884
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ASF GitHub Bot commented on DRILL-6710:
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sohami commented on a change in pull request #1453: DRILL-6710: Disallow
negative scale for decimal data type
URL: https://github.com/apache/drill/pull/1453#discussion_r214160850
##########
File path:
exec/java-exec/src/main/codegen/templates/Decimal/DecimalAggrTypeFunctions1.java
##########
@@ -92,6 +92,8 @@ public void add() {
if (outputScale.value == Integer.MIN_VALUE) {
outputScale.value = in.scale;
Review comment:
it looks like `outputScale.value` is initialized to first input value scale
and later in `output` function below we are setting `out.scale as
min(outputScale.value, MaxScale)`. Shouldn't we limit scale here as well such
that we don't end up passing much bigger scale in `checkValueOverflow() `?
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> Disallow negative scale for VarDecimal
> --------------------------------------
>
> Key: DRILL-6710
> URL: https://issues.apache.org/jira/browse/DRILL-6710
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 1.14.0
> Reporter: Robert Hou
> Assignee: Volodymyr Vysotskyi
> Priority: Major
> Fix For: 1.15.0
>
>
> Query is:
> select cast('999999999999999999' as decimal(18,0)) +
> cast('9999999999999999999999999999999999999' as decimal(38,0)) from data
> limit 1
> This is the error I get when my test program calls SQLExecDirect:
> The driver reported the following diagnostics whilst running SQLExecDirect
> HY000:1:40140:[MapR][Support] (40140) Scale can't be less than zero.
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