Feature: Union schema compatibility

[fivetran-catfritz]

Issue: #46

Confirm the following files were correctly updated automatically:

• CHANGELOG
• README
• stg_apple_search_ads.yml, src_apple_search_ads.yml, apple_search_ads.yml (depending if source or transform)
• docs.md
• joins
• window functions (partition by)
• 'source_relation' column added in staging and transform models
• tests

Manual updates:

• Add source_relation to downstream models if necessary
• Finish any incomplete/incorrect joins/partitions
• Update tests to include source_relation in unique-combination-of-cols if necessary
  • May need to remove some uniqueness tests in favor of the combo test

Validation:

• dbt run locally passes
• dbt test locally passes

[fivetran-catfritz]

Note--we need to decide if we update identifier for ad_level_report table or update fivetran_utils.union_data to handle divergent naming.

It technically passes buildkite, but reviewing the logs, it can't find a lot of the seed tables because of the identifier issues, which would mean problems for others using identifiers.

[fivetran-joemarkiewicz]

Only a few small comments to make minor updates to the README and packages.yml before merging.

Again let's hold off to release until we can do them all together. Otherwise, this looks good to go!

[fivetran-catfritz]

Merging for release on 12-Oct-2023.