MySQL 9.1.0
Source Code Documentation
opt_range Namespace Reference

Shared sentinel node for all trees. More...

Variables

SEL_ARGnull_element = nullptr
 

Detailed Description

Shared sentinel node for all trees.

Initialized by range_optimizer_init(), destroyed by range_optimizer_free(); Put it in a namespace, to avoid possible conflicts with the global namespace.

Variable Documentation

◆ null_element

SEL_ARG * opt_range::null_element = nullptr