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I have deployed a datamart and queried tables from different sources (sql, sharepoint, api).
However, if I try to enhnace any table by changing the code in PQ window (while being mindful of keeping the number of the column same as well as the order of the column), and load it back to datamart, the datamart breaks, meaning following element breaks
Data source credentials
Loading data- I expect to see 50k+ rows here, which does not happen.
Can someone from MS please advise what is going on here?
Also, I can query the AZURE SQL tables, but the query execution has some flaws. A super optimized query that executes in 1 second, takes 7 minutes on a subsequest execution. Why is that? How can I access/improve these severs myself?
Datamart will be a game changer without these flaws and I need to know all these things beforehand so that I don't tangle myself with prod reports feeding from a datamart that is stale.
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