database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Merge from mysql-trunk-merge.

Browse Source
This commit is contained in:
Alexander Nozdrin
2009-10-19 17:36:19 +04:00
parent 1c3de291f7 b930b18ec3
commit 3fd2f50b6c
185 changed files with 5351 additions and 2743 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
sql/sql_select.h
View File

@ -283,7 +283,14 @@ public:
TABLE **table,**all_tables,*sort_by_table;
uint tables,const_tables;
uint send_group_parts;
bool sort_and_group,first_record,full_join,group, no_field_update;
/**
Indicates that grouping will be performed on the result set during
query execution. This field belongs to query execution.
@see make_group_fields, alloc_group_fields, JOIN::exec
*/
bool sort_and_group;
bool first_record,full_join,group, no_field_update;
bool do_send_rows;
/**
TRUE when we want to resume nested loop iterations when
@ -362,6 +369,8 @@ public:
simple_xxxxx is set if ORDER/GROUP BY doesn't include any references
to other tables than the first non-constant table in the JOIN.
It's also set if ORDER/GROUP BY is empty.
Used for deciding for or against using a temporary table to compute
GROUP/ORDER BY.
*/
bool simple_order, simple_group;
/**
@ -431,6 +440,7 @@ public:
tables= 0;
const_tables= 0;
join_list= 0;
implicit_grouping= FALSE;
sort_and_group= 0;
first_record= 0;
do_send_rows= 1;
@ -536,6 +546,11 @@ public:
select_lex == unit->fake_select_lex));
}
private:
/**
TRUE if the query contains an aggregate function but has no GROUP
BY clause.
*/
bool implicit_grouping;
bool make_simple_join(JOIN *join, TABLE *tmp_table);
};