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

Tabular ANALYZE must get its data from execution tracker

Browse Source
This commit is contained in:
Sergei Petrunia
2015-07-02 13:33:08 +03:00
parent 28a8ba089f
commit 302bf7c466
3 changed files with 101 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
sql/sql_explain.cc
View File

@ -726,8 +726,36 @@ int Explain_select::print_explain(Explain_query *query,
}
else
{
bool using_tmp= using_temporary;
bool using_fs= using_filesort;
bool using_tmp;
bool using_fs;
if (is_analyze)
{
/*
Get the data about "Using temporary; Using filesort" from execution
tracking system.
*/
using_tmp= false;
using_fs= false;
Sort_and_group_tracker::Iterator iter(&ops_tracker);
enum_qep_action action;
Filesort_tracker *dummy;
while ((action= iter.get_next(&dummy)) != EXPL_ACTION_EOF)
{
if (action == EXPL_ACTION_FILESORT)
using_fs= true;
else if (action == EXPL_ACTION_TEMPTABLE)
using_tmp= true;
}
}
else
{
/* Use imprecise "estimates" we got with the query plan */
using_tmp= using_temporary;
using_fs= using_filesort;
}
for (uint i=0; i< n_join_tabs; i++)
{
join_tabs[i]->print_explain(output, explain_flags, is_analyze, select_id,