QueryFormer: A Tree Transformer Model for Query Plan Representation
1 INTRODUCTION 本文为摘录，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...