SET Statistics IO Update in SQL Server 2019
Read OriginalThis technical blog post details an undocumented feature in SQL Server 2019 CTP 2.0 where SET STATISTICS IO now shows I/O statistics (like logical reads) for the *destination* table during an INSERT operation, not just the source. The author demonstrates this with a test using a Columnstore index, explaining how this reveals previously hidden resource consumption, which is especially valuable for ETL process analysis and optimization.
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