Bugfix/postgres performance updates

[fivetran-joemarkiewicz]

PR Overview

This PR will address the following Issue/Feature: Issue #23

This PR will result in the following new package version: v0.5.0

This will be breaking due to the introduction of new intermediate models which will be materialized in the users destination.

Please provide the finalized CHANGELOG entry which details the relevant changes included in this PR:

TBD

PR Checklist

Basic Validation

Please acknowledge that you have successfully performed the following commands locally:

• dbt run –full-refresh && dbt test
• [n/x] dbt run (if incremental models are present) && dbt test

Before marking this PR as "ready for review" the following have been applied:

• The appropriate issue has been linked, tagged, and properly assigned
• All necessary documentation and version upgrades have been applied
• docs were regenerated (unless this PR does not include any code or yml updates)
• BuildKite integration tests are passing
• Detailed validation steps have been provided below

Detailed Validation

Please share any and all of your validation steps:

TBD

If you had to summarize this PR in an emoji, which would it be?

🧉