timestampntz is not a valid type in Redshift

[Mike Prentice]

I received the following error while using this on Redshift:

Database error while running on-run-start
Encountered an error:
Database Error
  type "timestampntz" does not exist

timestampntz seems to be a Snowflake type. I think either use timestamp which is supported by both -- the default in Snowflake seems to be timestampntz: https://docs.snowflake.net/manuals/sql-reference/data-types-datetime.html -- or a new adapter method should be added to dbt and used here.

[Claire Carroll]

Closing as this uses the utils macro for current-timestamp.