* chore: add migration for pat to add default values
* fix: minor changes
* fix: don't panic in GetClickhouseColumnName
* fix: use new function for pat
* fix: address minor comments
* fix: address comments
* fix: remove generatepat
* fix: minor changes
* fix: remove extra check
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Co-authored-by: Vibhu Pandey <vibhupandey28@gmail.com>