AT TIME ZONE way too slow - by Robert L Davis

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ID 3144414 Comments
Status Active Workarounds
Type Suggestion Repros 0
Opened 11/24/2017 6:58:23 AM
Access Restriction Public


AT TIME ZONE shells out to Windows to perform time zone conversions. This process takes way too long when working with more than a few rows (see this blog post for details: The time zone info does not change frequently. The info from Windows required to make the conversions should be cached within SQL Server to speed up this processing.
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