In the Papers: Plan Stitch

Brent Ozar reviews a Microsoft Research paper:

In the Microsoft Research paper Plan Stitch: Harnessing the Best of Many Plans by Bailu Ding, Sudipto Das, Wentao Wu, Surajit Chaudhuri, and Vivek Narasayya (2018), the authors propose something really cool: watching an execution plan change over time, splitting it into parts, and then combining parts to form a SuperPlan™. (They don’t call it a SuperPlan™ – it just seems appropriate, right?)

That looks like an interesting paper, and Brent has a few more if you agree.

Related Posts

Batch Mode Normalization

Paul White digs into batch mode normalization and its consequences for performance: I mentioned in the introduction that not all eight-byte data types can fit in 64 bits. This fact is important because many columnstore and batch mode performance optimizations only work with data 64 bits in size. Aggregate pushdown is one of those things. There are […]

Read More

Comparing CAST and CONVERT Performance

Max Vernon runs a performance test of CAST versus CONVERT: This post is a follow-up to my prior post inspecting the performance of PARSE vs CAST & CONVERT, where we see that PARSE is an order of magnitude slower than CONVERT. In this post, we’ll check if there is a similar difference between using CAST or CONVERT. But just to be clear, CONVERT offers […]

Read More

Categories

August 2019
MTWTFSS
« Jul Sep »
 1234
567891011
12131415161718
19202122232425
262728293031