News for hackers. Stuff that matters.

A comment on Why SELECT * is bad for SQL performance (2020). Parent comment

Re:Why SELECT * is bad for SQL performance (2020) by jlouis on Monday February 15, 2021 @01:20PM (#26145441)
Some columns have large size variance. You are hedging against them growing. It's almost never a problem on fixed size columns.
[ Parent | on HN ]

There are no comments on this comment yet.