Columnstore Pagination

Aaron Bertrand investigates whether columnstore indexes help with pulling out specific “pages” of data:

Since then, I’ve wondered if ColumnStore indexes (both clustered and non-clustered) might help any of these scenarios. TL;DR: Based on this experiment in isolation, the answer to the title of this post is a resounding NO. If you don’t want to see the test setup, code, execution plans, or graphs, feel free to skip to my summary, keeping in mind that my analysis is based on a very specific use case.

I actually would have been surprised to find the answer here to be “yes.”  Columnstore is designed with aggregation in mind, rather than pulling out a fairly small subset of the data.

Related Posts

Preventing Issues With Columnstore Indexes

Kevin Chant has a post covering issues in his experience with the creation of columnstore indexes: Error due to online statement It’s a very common error caused usually by somebody copying a rowstore “Create Index” command. The “online=on” option you use with rowstore indexes does not work with creating columnstore indexes yet. For the record the […]

Read More

Avoid Key Lookups On Clustered Columnstore Indexes

Joey D’Antoni points out a potential big performance problem with clustered columnstore indexes: In the last year or so, with a large customer who makes fairly heavy use of this pattern, I’ve noticed another concern. Sometimes, and I can’t figure out what exactly triggers it, the execution plan generated, will do a seek against the […]

Read More

Categories

January 2016
MTWTFSS
« Dec Feb »
 123
45678910
11121314151617
18192021222324
25262728293031