Non blocking index creation

Hello, I’ve been using CREATE INDEX CONCURRENTLY and I recently learned that this is actually blocking. So if Liquibase is running such changeset and it takes a long time to finish (which it often does when running on large tables) then the application startup can time out. Is there any way to get around this?

This is Postgres core functionality, and really has nothing to do with Liquibase. Liquibase has no ability to affect the core functionality of Postgres.