MySQL 8.4.0
Source Code Documentation
anonymous_namespace{cost_model.cc}::AggregateRowEstimator::Prefix Struct Reference

A prefix of some key where each key_part corresponds to an aggregation term. More...

Public Member Functions

string Print () const
 

Public Attributes

const KEYm_key
 The key (index). More...
 
uint m_length
 The number of key_parts found in 'terms'. More...
 

Detailed Description

A prefix of some key where each key_part corresponds to an aggregation term.

Member Function Documentation

◆ Print()

string anonymous_namespace{cost_model.cc}::AggregateRowEstimator::Prefix::Print ( ) const
Returns
A string representation of this object (for optimizer trace).

Member Data Documentation

◆ m_key

const KEY* anonymous_namespace{cost_model.cc}::AggregateRowEstimator::Prefix::m_key

The key (index).

◆ m_length

uint anonymous_namespace{cost_model.cc}::AggregateRowEstimator::Prefix::m_length

The number of key_parts found in 'terms'.


The documentation for this struct was generated from the following file: