[SOLR-15789] Explicitly say that "inc" in atomic updates can be negative

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.10.1
• Fix Version/s: 9.0
• Component/s: documentation
• Labels: atomicupdate documentation
• Assignee: Unassigned
• Reporter: Andy Lester
• Created: 10/Nov/21 22:39
• Updated: 12/May/22 00:26
• Resolved: 01/Jan/22 04:51

Description

In https://solr.apache.org/guide/8_10/updating-parts-of-documents.html the docs say:

"inc: Increments a numeric value by a specific amount. Must be specified as a single numeric value."

I took this to be an analog to Redis's INCRBY, and I inferred from this that the amount could only be a positive integer.  Since there was no DECRBY, I figured that the values could only increase.

Of course, it turns out that I can decrement the value by passing inc a negative value.  I think it would be good to explictly state that in the docs.

Issue Links

• links to: GitHub Pull Request #481