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Vector Data Types & Native Indexing: The ANN Revolution We Didn’t Know We Needed
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Vector indexes in SQL Server: maintenance & tuning
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Native vectors & ANN indexing enable fast similarity searches without external DBs. But they're storage-hungry (4x data size), need frequent rebuilds, and risk parameter sniffing. Tune memory grants, use OPTION(RECOMPILE), and monitor tempdb spills religiously.