### What happens? DATE + INTERVAL yields DATE, not TIMESTAMP ### To Reproduce ```sql select '1977-04-20'::DATE + INTERVAL (1) SECOND ts; -- Should produce 1977-04-20 00:00:01 ``` | ts | |------------| | 1977-04-20 | ### OS: OSX ### DuckDB Version: v0.9.3-dev2934 dd205d9519 ### DuckDB Client: CLI ### Full Name: Richard Wesley ### Affiliation: DuckDB Labs ### Have you tried this on the latest `main` branch? I have tested with a main build ### Have you tried the steps to reproduce? Do they include all relevant data and configuration? Does the issue you report still appear there? - [X] Yes, I have