How to speed up joins

DocMusherDocMusher Member Posts: 333 Unicorn
edited November 2018 in Help
Joining 2 tables based on an id attribute, can take some time.
How could this process be optimized? Do both tables need tobe fully loaded? Even if I would only generatie a join based on one example.
What is the non-coding solution when I might use postgres, mongodb or Cassandra?

Cheers Sven
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