Commit 1f970d41 authored by Igor Babaev's avatar Igor Babaev

Fixed typo that caused printing 'range' instead of 'index_merge' as the type

of sort_intersect scans.
 
parent 902a307d
...@@ -64,12 +64,12 @@ EXPLAIN ...@@ -64,12 +64,12 @@ EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'C%' AND Population > 1000000; Name LIKE 'C%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where 1 SIMPLE City index_merge Population,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'M%' AND Population > 1500000; Name LIKE 'M%' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 5 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 5 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name LIKE 'M%' AND Population > 300000; WHERE Name LIKE 'M%' AND Population > 300000;
...@@ -361,12 +361,12 @@ EXPLAIN ...@@ -361,12 +361,12 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where 1 SIMPLE City index_merge Population,Country,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Country 4,3 NULL 19 Using sort_intersect(Population,Country); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Country 4,3 NULL 19 Using sort_intersect(Population,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%';
...@@ -467,7 +467,7 @@ EXPLAIN ...@@ -467,7 +467,7 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%'; WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country Country,Population 3,4 NULL 6 Using sort_intersect(Country,Population); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country Country,Population 3,4 NULL 6 Using sort_intersect(Country,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%'; WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%';
...@@ -478,7 +478,7 @@ SELECT * FROM City ...@@ -478,7 +478,7 @@ SELECT * FROM City
WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000 WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000
AND Country BETWEEN 'S' AND 'Z'; AND Country BETWEEN 'S' AND 'Z';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country Population,PRIMARY 4,4 NULL 17 Using sort_intersect(Population,PRIMARY); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country Population,PRIMARY 4,4 NULL 17 Using sort_intersect(Population,PRIMARY); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
...@@ -718,17 +718,17 @@ EXPLAIN ...@@ -718,17 +718,17 @@ EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'C%' AND Population > 1000000; Name LIKE 'C%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where 1 SIMPLE City index_merge Population,Name Name,Population 35,4 NULL 9 Using sort_intersect(Name,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'M%' AND Population > 1500000; Name LIKE 'M%' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 5 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 5 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Country 4,3 NULL 19 Using sort_intersect(Population,Country); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Country 4,3 NULL 19 Using sort_intersect(Population,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%';
...@@ -738,7 +738,7 @@ EXPLAIN ...@@ -738,7 +738,7 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%'; WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country Country,Population 3,4 NULL 6 Using sort_intersect(Country,Population); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country Country,Population 3,4 NULL 6 Using sort_intersect(Country,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
...@@ -885,17 +885,17 @@ EXPLAIN ...@@ -885,17 +885,17 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country LIKE 'M%' AND Population > 1000000; WHERE Country LIKE 'M%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,CountryID,CountryName Population,CountryID 4,3 NULL 15 Using sort_intersect(Population,CountryID); Using where 1 SIMPLE City index_merge Population,CountryID,CountryName Population,CountryID 4,3 NULL 15 Using sort_intersect(Population,CountryID); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country='CHN' AND Population > 1500000; WHERE Country='CHN' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,CountryID,CountryName Population,CountryID 4,3 NULL 11 Using sort_intersect(Population,CountryID); Using where 1 SIMPLE City index_merge Population,CountryID,CountryName Population,CountryID 4,3 NULL 11 Using sort_intersect(Population,CountryID); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country='CHN' AND Population > 1500000 AND Name LIKE 'C%'; WHERE Country='CHN' AND Population > 1500000 AND Name LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name,CountryID,CountryName CountryName,Population 38,4 NULL 1 Using sort_intersect(CountryName,Population); Using where 1 SIMPLE City index_merge Population,Name,CountryID,CountryName CountryName,Population 38,4 NULL 1 Using sort_intersect(CountryName,Population); Using where
SELECT * FROM City USE INDEX () SELECT * FROM City USE INDEX ()
WHERE Country LIKE 'M%' AND Population > 1000000; WHERE Country LIKE 'M%' AND Population > 1000000;
ID Name Country Population ID Name Country Population
......
...@@ -65,22 +65,22 @@ EXPLAIN ...@@ -65,22 +65,22 @@ EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'C%' AND Population > 1000000; Name LIKE 'C%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 16 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 16 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'M%' AND Population > 1500000; Name LIKE 'M%' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 9 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 9 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name LIKE 'M%' AND Population > 300000; WHERE Name LIKE 'M%' AND Population > 300000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Name,Population 35,4 NULL 79 Using sort_intersect(Name,Population); Using where 1 SIMPLE City index_merge Population,Name Name,Population 35,4 NULL 79 Using sort_intersect(Name,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name LIKE 'M%' AND Population > 7000000; WHERE Name LIKE 'M%' AND Population > 7000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 1 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 1 Using sort_intersect(Population,Name); Using where
SELECT * FROM City USE INDEX () SELECT * FROM City USE INDEX ()
WHERE Name LIKE 'C%' AND Population > 1000000; WHERE Name LIKE 'C%' AND Population > 1000000;
ID Name Country Population ID Name Country Population
...@@ -362,17 +362,17 @@ EXPLAIN ...@@ -362,17 +362,17 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Name,Country 4,35,3 NULL 2 Using sort_intersect(Population,Name,Country); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Name,Country 4,35,3 NULL 2 Using sort_intersect(Population,Name,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Country,Name 4,3,35 NULL 2 Using sort_intersect(Population,Country,Name); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Country,Name 4,3,35 NULL 2 Using sort_intersect(Population,Country,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Name,Country 4,35,3 NULL 26 Using sort_intersect(Population,Name,Country); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Name,Country 4,35,3 NULL 26 Using sort_intersect(Population,Name,Country); Using where
SELECT * FROM City USE INDEX () SELECT * FROM City USE INDEX ()
WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%';
ID Name Country Population ID Name Country Population
...@@ -463,29 +463,29 @@ EXPLAIN ...@@ -463,29 +463,29 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 501 AND 1000 AND Population > 700000 AND Country LIKE 'C%'; WHERE ID BETWEEN 501 AND 1000 AND Population > 700000 AND Country LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 11 Using sort_intersect(PRIMARY,Country,Population); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 11 Using sort_intersect(PRIMARY,Country,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%'; WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 1 Using sort_intersect(PRIMARY,Population,Country); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 1 Using sort_intersect(PRIMARY,Population,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%'; WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Country 4,3 NULL 7 Using sort_intersect(PRIMARY,Country); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Country 4,3 NULL 7 Using sort_intersect(PRIMARY,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000 WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000
AND Country BETWEEN 'S' AND 'Z'; AND Country BETWEEN 'S' AND 'Z';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 2 Using sort_intersect(PRIMARY,Country,Population); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 2 Using sort_intersect(PRIMARY,Country,Population); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
AND Country BETWEEN 'S' AND 'Z' ; AND Country BETWEEN 'S' AND 'Z' ;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 30 Using sort_intersect(PRIMARY,Population,Country); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 30 Using sort_intersect(PRIMARY,Population,Country); Using where
SELECT * FROM City USE INDEX () SELECT * FROM City USE INDEX ()
WHERE ID BETWEEN 501 AND 1000 AND Population > 700000 AND Country LIKE 'C%'; WHERE ID BETWEEN 501 AND 1000 AND Population > 700000 AND Country LIKE 'C%';
ID Name Country Population ID Name Country Population
...@@ -719,33 +719,33 @@ EXPLAIN ...@@ -719,33 +719,33 @@ EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'C%' AND Population > 1000000; Name LIKE 'C%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 16 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 16 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'M%' AND Population > 1500000; Name LIKE 'M%' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name Population,Name 4,35 NULL 9 Using sort_intersect(Population,Name); Using where 1 SIMPLE City index_merge Population,Name Population,Name 4,35 NULL 9 Using sort_intersect(Population,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 1000000 AND Country LIKE 'B%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Population,Country,Name 4,3,35 NULL 2 Using sort_intersect(Population,Country,Name); Using where 1 SIMPLE City index_merge Population,Country,Name Population,Country,Name 4,3,35 NULL 2 Using sort_intersect(Population,Country,Name); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%'; WHERE Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Country,Name Name,Population,Country 35,4,3 NULL 7 Using sort_intersect(Name,Population,Country); Using where 1 SIMPLE City index_merge Population,Country,Name Name,Population,Country 35,4,3 NULL 7 Using sort_intersect(Name,Population,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%'; WHERE ID BETWEEN 1 AND 500 AND Population > 1000000 AND Country LIKE 'A%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 1 Using sort_intersect(PRIMARY,Population,Country); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Population,Country 4,4,3 NULL 1 Using sort_intersect(PRIMARY,Population,Country); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
AND Country BETWEEN 'S' AND 'Z'; AND Country BETWEEN 'S' AND 'Z';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 30 Using sort_intersect(PRIMARY,Country,Population); Using where 1 SIMPLE City index_merge PRIMARY,Population,Country PRIMARY,Country,Population 4,3,4 NULL 30 Using sort_intersect(PRIMARY,Country,Population); Using where
SELECT * FROM City WHERE SELECT * FROM City WHERE
Name LIKE 'C%' AND Population > 1000000; Name LIKE 'C%' AND Population > 1000000;
ID Name Country Population ID Name Country Population
...@@ -886,17 +886,17 @@ EXPLAIN ...@@ -886,17 +886,17 @@ EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country LIKE 'M%' AND Population > 1000000; WHERE Country LIKE 'M%' AND Population > 1000000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,CountryID,CountryName Population,CountryID 4,3 NULL 16 Using sort_intersect(Population,CountryID); Using where 1 SIMPLE City index_merge Population,CountryID,CountryName Population,CountryID 4,3 NULL 16 Using sort_intersect(Population,CountryID); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country='CHN' AND Population > 1500000; WHERE Country='CHN' AND Population > 1500000;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,CountryID,CountryName Population,CountryID 4,3 NULL 11 Using sort_intersect(Population,CountryID); Using where 1 SIMPLE City index_merge Population,CountryID,CountryName Population,CountryID 4,3 NULL 11 Using sort_intersect(Population,CountryID); Using where
EXPLAIN EXPLAIN
SELECT * FROM City SELECT * FROM City
WHERE Country='CHN' AND Population > 1500000 AND Name LIKE 'C%'; WHERE Country='CHN' AND Population > 1500000 AND Name LIKE 'C%';
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE City range Population,Name,CountryID,CountryName CountryName,Population 38,4 NULL 1 Using sort_intersect(CountryName,Population); Using where 1 SIMPLE City index_merge Population,Name,CountryID,CountryName CountryName,Population 38,4 NULL 1 Using sort_intersect(CountryName,Population); Using where
SELECT * FROM City USE INDEX () SELECT * FROM City USE INDEX ()
WHERE Country LIKE 'M%' AND Population > 1000000; WHERE Country LIKE 'M%' AND Population > 1000000;
ID Name Country Population ID Name Country Population
...@@ -1026,7 +1026,7 @@ EXPLAIN ...@@ -1026,7 +1026,7 @@ EXPLAIN
SELECT * FROM t1 SELECT * FROM t1
WHERE (f1 < 535 OR f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ; WHERE (f1 < 535 OR f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ;
id select_type table type possible_keys key key_len ref rows Extra id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range PRIMARY,f4 PRIMARY,f4 4,35 NULL 1 Using sort_intersect(PRIMARY,f4); Using where 1 SIMPLE t1 index_merge PRIMARY,f4 PRIMARY,f4 4,35 NULL 1 Using sort_intersect(PRIMARY,f4); Using where
SELECT * FROM t1 SELECT * FROM t1
WHERE (f1 < 535 OR f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ; WHERE (f1 < 535 OR f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ;
f1 f4 f5 f1 f4 f5
......
...@@ -18862,7 +18862,7 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order, ...@@ -18862,7 +18862,7 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order,
{ {
quick_type= tab->select->quick->get_type(); quick_type= tab->select->quick->get_type();
if ((quick_type == QUICK_SELECT_I::QS_TYPE_INDEX_MERGE) || if ((quick_type == QUICK_SELECT_I::QS_TYPE_INDEX_MERGE) ||
(quick_type == QUICK_SELECT_I::QS_TYPE_ROR_INTERSECT) || (quick_type == QUICK_SELECT_I::QS_TYPE_INDEX_INTERSECT) ||
(quick_type == QUICK_SELECT_I::QS_TYPE_ROR_INTERSECT) || (quick_type == QUICK_SELECT_I::QS_TYPE_ROR_INTERSECT) ||
(quick_type == QUICK_SELECT_I::QS_TYPE_ROR_UNION)) (quick_type == QUICK_SELECT_I::QS_TYPE_ROR_UNION))
tab->type = JT_INDEX_MERGE; tab->type = JT_INDEX_MERGE;
......
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