[COUCHDB-3305] don't crash with invalid input to built in reducer function

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Database Core
• Assignee: Tony Sun
• Reporter: Tony Sun
• Created: 21/Feb/17 22:12
• Updated: 02/Sep/18 07:06
• Resolved: 02/Sep/18 07:06

Description

When users use a built in reduce function such as _sum, and documents have invalid input, we currently crash and return a 500 with error message. This improvement will return an error row without crashing for better debugging.

Issue Links

• links to: GitHub Pull Request #229
• links to: GitHub Pull Request #234