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SQL Performance (MOSC)

In the alert log file why the following message is logged and how it may impact the query plan

Jun 8, 2015 9:26AM edited Jun 16, 2015 10:03AM in SQL Performance (MOSC) 2 commentsAnswered

In the alert log file why the following message is logged and how it may impact the query plan

some [sub]partitions of the index have been marked unusable

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