[CALCITE-2396] TIMESTAMPADD and DATETIME_PLUS should allow NULL intervals

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.16.0
• Fix Version/s: 1.17.0
• Component/s: core
• Assignee: Julian Hyde
• Reporter: James Duong
• Created: 03/Jul/18 22:11
• Updated: 20/Jul/18 08:18
• Resolved: 09/Jul/18 08:48

Description

TIMESTAMPADD(<time_unit>, NULL, <datetime>) and <datetime> + NULL should be permitted and return NULL.