database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

Added comments.

Browse Source 
Renamed the virtual method middle_point_pos for the class Field to
pos_in_interval.
This commit is contained in:
Igor Babaev
2013-04-15 22:43:07 -07:00
parent f4cd2b37b1
commit b12b3cae85
6 changed files with 318 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
sql/sql_select.h
View File

@ -292,7 +292,8 @@ typedef struct st_join_table {
/* psergey-todo: make the below have type double, like POSITION::records_read? */
ha_rows records_read;
double cond_selectivity;
/* The selectivity of the conditions that can be pushed to the table */
double cond_selectivity;
/* Startup cost for execution */
double startup_cost;
@ -774,7 +775,8 @@ typedef struct st_position :public Sql_alloc
*/
double records_read;
double cond_selectivity;
/* The selectivity of the pushed down conditions */
double cond_selectivity;
/*
Cost accessing the table in course of the entire complete join execution,