I'm working on an idea to implement a graph database in Postgres. At the
moment its just a learning exercise.
What I'd like to do is store a reference to all the links from one record
using an array type that stores links to all related tables.
At first, I've succeeded in doing this using primary key Ids and this works
fine. However, I'd like to be able to bypass the index lookup altogether by
storing the ctids in my array instead of the primary key ids.
Trouble of course is that ctids can get changed (like for instance
vacuuming). So my question is: how can I keep my ctid references up to date
- is there any way to detect when a ctid is changed?
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