`pivot` macro `quote_identifiers` not working

[Ishankoradia]

Describe the bug

The pivot macro is not actually quoting the column even after setting quote_identifiers= true.

Steps to reproduce

I create a model that looked like this

Expected results

Was expecting the Month column to quoted in the compiled model. This is how the compiled model looks like

Actual results

Screenshots and log output

This is error log

System information

The contents of your packages.yml file:

packages:
  - package: dbt-labs/dbt_utils
    version: 1.1.1

Which database are you using dbt with?

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

The output of dbt --version:

Core:
  - installed: 1.6.6 
  - latest:    1.7.11 - 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  Your version of dbt-core is out of date!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:
  - bigquery: 1.6.7 - Update available!
  - postgres: 1.6.6 - Update available!

  At least one plugin is out of date or incompatible with dbt-core.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?

From my investigation, it looks like in the pivot macro we never quote the pivot column.

The line no 72 should have been adapter.quote(column). After doing this, the above error goes away and the column is actually quoted. Correct me if I got it wrong.