andowero
commented
2 years ago If I understand correctly - when there is an UDF in a column or table check constraint, using this table in a SELECT query will prevent parallelism?
Open utterances-bot opened 2 years ago
andowero
commented
2 years ago If I understand correctly - when there is an UDF in a column or table check constraint, using this table in a SELECT query will prevent parallelism?
Scary Scalar Functions - Part One: Parallelism - StraightforwardSQL
Consultants hate me for this one weird trick. Because I'll be uncovering all the mess Scalar functions can cause in a series of articles.
https://straightforwardsql.com/posts/scary-scalar-functions-parallelism/