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Mar 11, 2019 at 20:06 comment added J Weezy The recommendation to split the indexes was a good first start. Unfortunately, the query still did not complete. However, the ordering of the columns within the index was incorrect. The column with the highest cardinality was last while the lowest cardinality was first. By switching it, the query not only completed, but completed within 6 minutes. The query plan was also substantially different with 100% on an index seek on the ExchangeServerLogTest table
Mar 11, 2019 at 20:03 vote accept J Weezy
Mar 8, 2019 at 21:48 history edited Erik Reasonable Rates Darling CC BY-SA 4.0
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Mar 8, 2019 at 20:55 history edited ypercubeᵀᴹ CC BY-SA 4.0
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Mar 8, 2019 at 20:34 history answered ypercubeᵀᴹ CC BY-SA 4.0