GitHub - ageweke/low_card_tables: Store low-cardinality columns in a separate table for vastly more flexibility and better performance.Think of low_card_tables as "bitfields for ActiveRecord, but done right". It allows you to store multiple values as compactly as possible in a given database column, but using a technique that's vastly friendlier to queries, future expansion, separate analysis, and other (non-Rails) tools than actual bitfields. It works with any data that has few distinct values in the table; boolean fields are on
