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Picklists treated as 255 characters on all new Heroku Connect Addons
Change effective on 28 August 2020
In an effort to better align with how Salesforce stores Picklist data for customers, Heroku Connect will now be creating all Picklist fields in PostgreSQL with a length of 255 characters. This is true for all Heroku Connect Addons created after 2020 August 13. See the picklist entry under the Mapped Data Types documentation.