Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Fix column types for payout tables

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

Motivation and Context

payout_method_id was String type in storage and mv while the queue was Nullable(String). Changed it to Nullable(String) everywhere.
business_country fixed to LowCardinality(Nullable(String))

How did you test it?

Ran the scripts in integ, sandbox, prod envs

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible
• I added a CHANGELOG entry if applicable