Non-Clustered, Memory-Optimized Indexes

Raul Gonzalez takes a look at non-clustered indexes on memory-optimized tables:

Wow, what happened there? This is something new I wasn’t expecting.

The first query matches one of our expected query plans, “Index Seek + Lookup” but just an “Index seek” doesn’t make sense, or it does?

Read on for the answer.

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Query Store Indexes

Arthur Daniels shows what you can learn from the indexes on Query Store tables: It looks like internally Query Store is referred to as plan_persist. That makes sense, thinking about how the Query Store persists query plans to your database’s storage. Let’s take a look at those catalog views vs their clustered and nonclustered indexes. […]

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Gotchas When Indexing Partitioned Tables

Andrew Pruski gives us a couple of considerations when creating indexes on partitioned tables in SQL Server: Looking at that data page, we can see that SQL has added a UNIQUIFIER column. Now this is standard SQL behaviour, SQL does this to all non-unique clustered indexes whether they are on a partitioned table or not. But also […]

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