not_null_proportion.sql cannot hanlde function in group_by_columns

[chaubilly]

Describe the bug

In not_null_proportion macro, when function is used in one of group_by_columns, it fails.

Steps to reproduce

Below is an example model config that will trigger the error. Redshift syntax is used.

• name: dummy_model
  tests:
  - not_null_proportion:
  at_least: 0.999
  group_by_columns: ["date_trunc('month', dummy_date)::date"]

Expected results

Test should run properly with the provided group_by_columns.

Actual results

Error raised.

09:56:48  Database Error in test not_null_proportion_dummy_model (models\_models.yml)
09:56:48    column "dummy_date" does not exist in validation
09:56:48    compiled Code at target\run\dummy_dbt\models\_models.yml\not_null_proportion_xxx.sql

Screenshots and log output

System information

The contents of your packages.yml file:

Which database are you using dbt with?

• postgres
• [v] redshift
• bigquery
• snowflake
• other (specify: ____________)

The output of dbt --version:

Core:
  - installed: 1.5.3
  - latest:    1.9.1 - Update available!

  Your version of dbt-core is out of date!
  You can find instructions for upgrading here:
  https://docs.getdbt.com/docs/installation

Plugins:
  - postgres:  1.5.3 - Update available!
  - redshift:  1.5.5 - Update available!
  - sqlserver: 1.3.1 - Not compatible!

  At least one plugin is out of date or incompatible with dbt-core.
  You can find instructions for upgrading here:
  https://docs.getdbt.com/docs/installation

Additional context

Are you interested in contributing the fix?

Yes

[chaubilly]

Here is a pull request for this issue.
#976