Taras Bobrovytsky created IMPALA-6292:
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Summary: Decimal v2 subtraction hits a DCHECK
Key: IMPALA-6292
URL: https://issues.apache.org/jira/browse/IMPALA-6292
Project: IMPALA
Issue Type: Bug
Components: Backend
Affects Versions: Impala 2.11.0
Reporter: Taras Bobrovytsky
Assignee: Taras Bobrovytsky
The following query causes a DCHECK when executed with decimal_v2 enabled:
{code}
select cast(1 as decimal(13,12)) -
cast(0.99999999999999999999999999999999999999 as decimal(38,38))
{code}
DCHECK:
{code}
decimal-value.inline.h:274] Check failed: abs(right) <
DecimalUtil::MAX_UNSCALED_DECIMAL16
{code}
This was found using fuzz testing.
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