QUOTED_IDENTIFIER

Technical Article

“QUOTED_IDENTIFIER” causes Unexpected Query Plan for Persisted Computed Column query

  • Article

In this blog, you will see the reproducible steps that reveal the following observation: “If the table has a persisted computed column*, the query optimizer will choose a clustered index scan over a clustered index seek.”

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2011-10-28

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BIT_COUNT() IV

In SQL Server 2025, I run this code:

select bit_count('A')
What is returned?

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