fix: add mutator to get_columns_description

[eschutho]

SUMMARY

Aiming to have the mutator run on every analytical db request, I'm adding it to the get_columns_description which is used when creating a virtual dataset and looking up which columns should be added to the dataset.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

update the SQL_QUERY_MUTATOR. As a test, I edited mine to look like this:

def mutator(sql: str, database: Any, **kwargs: Any) -> str:

    key = "foo"
    output = f"-- {key}\n"

    return output + f"select color from bart_lines\n-- {key}"


SQL_QUERY_MUTATOR = mutator

with the mutator:

TESTING INSTRUCTIONS

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[betodealmeida]

❤️