[upon_drumhead]

Yes, and they call it out as a concern, which it isn't with Postgresql.

> This could even cause an infinite loop in some cases where updates continually place the updated record ahead of the scan performing the update operation.

This just is not true for Postgresql and they don't specify anywhere that they switched from talking about Postgresql to a different database.

So either they believe it's an concern with Postgresql or they aren't being clear when they are talking about different databases.

[MrPowerGamerBR]

They didn't call it out as a concern, they said at the beginning of the section "Halloween Problem is a database error that a database system developer needs to be aware of."

To be honest, just like you I also thought that it was related to PostgreSQL or other popular SQL databases somehow, until I re-read the section multiple times.

[smitty1e]

I was pointing to the article as a whole, not just the Halloween Problem section, and regret if I read too quickly.