sortBy a VirtualColumn broken in pgsql

[Helveg]

Due to an upstream issue in TypeORM sorting by home.countCat is broken in pgSQL:

for SELECT DISTINCT, ORDER BY expressions must appear in select list
QueryFailedError: for SELECT DISTINCT, ORDER BY expressions must appear in select list
    at PostgresQueryRunner.query (C:\Users\pwd06\git\nestjs-paginate\src\driver\postgres\PostgresQueryRunner.ts:299:19)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at SelectQueryBuilder.loadRawResults (C:\Users\pwd06\git\nestjs-paginate\src\query-builder\SelectQueryBuilder.ts:3800:25)
    at SelectQueryBuilder.getRawMany (C:\Users\pwd06\git\nestjs-paginate\src\query-builder\SelectQueryBuilder.ts:1626:29)
    at SelectQueryBuilder.executeEntitiesAndRawResults (C:\Users\pwd06\git\nestjs-paginate\src\query-builder\SelectQueryBuilder.ts:3467:34)
    at SelectQueryBuilder.getManyAndCount (C:\Users\pwd06\git\nestjs-paginate\src\query-builder\SelectQueryBuilder.ts:1873:36)
    at paginate (C:\Users\pwd06\git\nestjs-paginate\src\paginate.ts:393:32)
    at Object.<anonymous> (C:\Users\pwd06\git\nestjs-paginate\src\paginate.spec.ts:668:24)

Since the last commit in TypeORM is 7 months ago, it has 2k open issues, and 150 open PRs, I think it's fair to say that it is unmaintained.

I have my own fork of typeorm, where I have fixes related to virtual columns, including for this issue. We can switch back to the original TypeORM repository if their maintenance ever picks up again.

Since TypeORM is a peerDependency of ours, I'm not sure how we best explain/nudge to our users that they should install the fork @helveg/typeorm, instead of typeorm itself. Probably best to just leave a note in our README, and to leave a note on fixed upstream issues here that we're closing them because they're fixed in my fork