[CALCITE-5360] Implement TIMESTAMP_ADD function (compatible with BigQuery)

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.33.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Tanner Clary
• Reporter: TJ Banghart
• Created: 01/Nov/22 19:25
• Updated: 07/Feb/23 22:33
• Resolved: 07/Dec/22 18:48

Description

Calcite already supports TIMESTAMPADD and TIMESTAMPDIFF. We should try mapping the BQ style syntax to these already implemented functions.

We did something similar for TIMESTAMP_TRUNC and TIME_TRUNC which conveniently mapped to FLOOR in CALCITE-5269

Issue Links

• is blocked by: CALCITE-5155 Custom time frames
• is related to: CALCITE-5489 When creating a RexCall to TIMESTAMP_DIFF function, cannot convert a TIMESTAMP literal to a org.apache.calcite.avatica.util.TimeUnit
• relates to: CALCITE-5422 Time units to be supported by TIMESTAMP_ADD function
• links to: GitHub Pull Request #2998