lisa.datautils: Add {df,series}_dereference()
Allows using a "pointer" column to point at values in other columns, to achieve some sort of index-aware join.
GitLab Maintenance scheduled for Thursday, 18th December 2025, from 7:00 AM to 10:00 AM BST. GitLab will be in read-only mode and experience short periods of complete downtime (up to 20 minutes) during this window.
Allows using a "pointer" column to point at values in other columns, to achieve some sort of index-aware join.