Cara ganti data type di Redshift

Update spreadsheet https://docs.google.com/spreadsheets/d/1S3awLfP6iB-BO_pBxjI-Tn6xHnn-lnoKhhpdjKkkaYk/edit#gid=833987931
Update repo python-scripts ~/python-scripts/data-processing/schemas/data-warehouse/
Alter Table di Redshift

alter table <schema-name>.<table-name> add column <column-name>_new <new-data-type>;

update <schema-name>.<table-name> set <column-name>_new=<column-name>;

alter table <schema-name>.<table-name> drop column <column-name>;

alter table <schema-name>.<table-name> rename column <column-name>_new to <column-name>;