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omarelmb123's avatar
omarelmb123
Helper I
2 years ago
Solved

Merging tables with Condition in a large right table

Hello evryone, its been days now im trying to improve the peformance of my query: I want two merge two tables with WHERE condition on a large data set. Here's the working code but it s really bad p...
  • edhans's avatar
    edhans
    2 years ago

    If you don't have a database upstream to do this in, then I suggest using Dataflows to stage and filter the data. A custom function will not work magic. You still are trying to join every single record with a filtered table. Power Query is absolutely horrible at doing that.