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Fixing a Parallelism Problem Together

Reitse Eskens phones a friend:

In my previous blogpost (Click here to read) I wrote about a query that just wouldn’t go parallel. This sparked some discussion and interest from a few people who were very kind and helpful with their suggestions and even deep dives into the query plans, execution statistics etc.

To make one thing very clear, this blog is 99% their work, only the typing and rephrasing is mine. This also means that mistakes are mine as I’m trying to join the different inputs together into a logical story. So let me introduce you to the heroes, order by first name ascending.

Read on to see what people suggested and the effect that had.

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