id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
33214	Base DatabaseOperations missing format_for_duration_arithmetic() stub	Tim Graham	Manaia Junior	"When implementing a new database backend, I see the error ""AttributeError: 'DatabaseOperations' object has no attribute 'format_for_duration_arithmetic'"" rather than getting a message that the method must be implemented.

The method was introduced in 57554442fe3e209c135e15dda4ea45123e579e58."	Cleanup/optimization	closed	Database layer (models, ORM)	dev	Normal	fixed			Ready for checkin	1	0	0	0	1	0