Fix overflow in justify_interval related functions

Joseph Koshakow <koshy44@gmail.com>

From: Joseph Koshakow <koshy44@gmail.com>

To: pgsql-hackers@lists.postgresql.org

Date: 2022-02-13T18:28:38Z

Lists: pgsql-hackers

Attachments

0001-Check-for-overflow-in-justify_interval-functions.patch (text/x-patch) patch 0001

I mentioned this issue briefly in another thread, but the
justify_interval, justify_days, and justify_hours functions
all have the potential to overflow. The attached patch fixes
this issue.

Cheers,
Joe Koshakow

Commits

Handle integer overflow in interval justification functions.
- 54bd1e43ca56 15.0 landed