目录

QueryFormer: A Tree Transformer Model for Query Plan Representation

0001-01-01 约 108 字预计阅读 1 分钟

目录

Table of Contents

1 INTRODUCTION

本文为摘录(或转载)，侵删，原文为： attachments/pdf/0/p1658-zhao.pdf

QueryFormer:

learning-based query planer representation model
with tree-structured Transformer architecture

-integrate histograms from database into query plan encoding

1 INTRODUCTION

Physical Query Plan As DAG (Directed Acyclic Graph)
Figure 1: Example query and query plan
- node 表示操作
- edge 表示方向
- 子节点先执行，执行结果给父节点作为输入
Physical Query Plan 作为机器学习的输入，用以数据库优化