• rinpatch's avatar
    Chunk the notification type backfill migration · 5c0e1039
    rinpatch authored
    Long-term we want that migration to be done entirely in SQL,
    but for now this is a hotfix to not cause OOMs on large databases.
    
    This is using a homegrown version of `Repo.stream`, it's worse in
    terms of performance than the upstream since it doesn't use the same
    prepared query for chunk queries, but unlike the upstream it supports
    preloads.
    5c0e1039