[IMPALA-7242] Dcheck fails in width_bucket() function

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Impala 3.1.0
• Fix Version/s: Impala 3.1.0
• Component/s: Backend
• Target Version: Impala 3.1.0
• Epic Color: ghx-label-3
• Assignee: Anuj Phadke
• Reporter: Taras Bobrovytsky
• Created: 03/Jul/18 21:19
• Updated: 07/Aug/18 23:03
• Resolved: 07/Aug/18 23:03

Description

The following query hits a DCHECK:

select width_bucket(cast(-0.10 as decimal(37,30)), cast(-0.36028797018963968 as decimal(25,25)), cast(9151517.4969773200562764155787276999832 as decimal(38,31)), 1328180220)

Failed check:

math-functions-ir.cc:566] Check failed: overflow == false (1 vs. 0)

Issue Links

• blocks: IMPALA-7202 Add WIDTH_BUCKET() function to the decimal fuzz test