[CALCITE-5432] Implement BigQuery TIME_ADD/TIME_DIFF

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.33.0
• Labels: pull-request-available
• Assignee: Tanner Clary
• Reporter: Tanner Clary
• Created: 13/Dec/22 17:53
• Updated: 07/Feb/23 22:33
• Resolved: 13/Jan/23 22:36

Description

Implement TIME_ADD and TIME_DIFF functions (compatible with BigQuery)

TIME_ADD(time_expression, INTERVAL int64_expression part) adds int64_expression  units of part to the time object. For example, the outcome of:
TIME_ADD(TIME '15:30:00', INTERVAL 5 MINUTE) is 15:35:00.

TIME_DIFF(time_expression_a, time_expression_b, part) finds the whole number of part between time_expression_a and time_expression_b . If time_expression_a is earlier than time_expression_b, the outcome is negative. For example, the outcome of:
TIME_DIFF(TIME '15:30:00', TIME '15:40:00', MINUTE) is -10.

Issue Links

• links to: GitHub Pull Request #3014