feature/postgres-comp

[fivetran-joemarkiewicz]

Are you a current Fivetran customer?

Fivetran created PR

What change(s) does this PR introduce?

Features

• 🎉 Postgres Compatibility 🎉

Under the Hood

• Added {{ dbt_utils.type_timestamp() }} casting to timestamp fields for safe casting across warehouses.

Did you update the CHANGELOG?

• [X] Yes

Does this PR introduce a breaking change?

• [ ] Yes (please provide breaking change details below.)
• [X] No (please provide an explanation as to how the change is non-breaking below.)

Did you update the dbt_project.yml files with the version upgrade (please leverage standard semantic versioning)? (In both your main project and integration_tests)

• [X] Yes

Is this PR in response to a previously created Bug or Feature Request

• [X] Yes, Issue/Feature #16
• [ ] No

How did you test the PR changes?

• [X] CircleCi
• [X] Local (please provide additional testing details below)

Select which warehouse(s) were used to test the PR

• [X] BigQuery
• [X] Redshift
• [X] Snowflake
• [X] Postgres
• [ ] Databricks
• [ ] Other (provide details below)

Provide an emoji that best describes your current mood

🐮 **Feedback** We are so excited you decided to contribute to the Fivetran community dbt package! We continue to work to improve the packages and would greatly appreciate your [feedback](https://www.surveymonkey.com/r/DQ7K7WW) on our existing dbt packages or what you'd like to see next.

[fivetran-avinash]

@fivetran-joemarkiewicz waiting_since ,snoozed_until from intercom__conversation_history and updated_at from intercom__conversation_part_history are also time types and need to be cast.