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LP BUG#615752 fix. Expression cache added to EXPLAIN EXTENDED output. 

mysql-test/r/compare.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/explain.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/group_by.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect3.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect3_jcl6.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect4.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_mat.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_mat.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_opts.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_no_semijoin.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_sj.result:
  Expression cache added to EXPLAIN EXTENDED output.
mysql-test/r/subselect_sj_jcl6.result:
  Expression cache added to EXPLAIN EXTENDED output.
sql/item.h:
  Expression cache added to EXPLAIN EXTENDED output.
parent 3b948d74
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Showing with 178 additions and 176 deletions
mysql-test/r/compare.result
View file @ 422f834f
......@@ -88,7 +88,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
Warnings:
Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t2`.`a` AS `a`,(select count(0) from `test`.`t1` where ((`test`.`t1`.`b` = `test`.`t2`.`a`) and (concat(`test`.`t1`.`b`,`test`.`t1`.`c`) = concat('0',`test`.`t2`.`a`,'01')))) AS `x` from `test`.`t2` order by `test`.`t2`.`a`
Note 1003 select `test`.`t2`.`a` AS `a`,<expr_cache>((select count(0) from `test`.`t1` where ((`test`.`t1`.`b` = `test`.`t2`.`a`) and (concat(`test`.`t1`.`b`,`test`.`t1`.`c`) = concat('0',`test`.`t2`.`a`,'01'))))) AS `x` from `test`.`t2` order by `test`.`t2`.`a`
DROP TABLE t1,t2;
CREATE TABLE t1 (a TIMESTAMP);
INSERT INTO t1 VALUES (NOW()),(NOW()),(NOW());
......
mysql-test/r/explain.result
View file @ 422f834f
......@@ -224,7 +224,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select 1 from `test`.`t2` where (`test`.`t2`.`d` = NULL)) AS `(SELECT 1 FROM t2 WHERE d = c)` from `test`.`t1`
Note 1003 select <expr_cache>((select 1 from `test`.`t2` where (`test`.`t2`.`d` = NULL))) AS `(SELECT 1 FROM t2 WHERE d = c)` from `test`.`t1`
DROP TABLE t1, t2;
#
# Bug #48419: another explain crash..
......
mysql-test/r/group_by.result
View file @ 422f834f
......@@ -1742,7 +1742,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select `test`.`t1`.`a`) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by ((select `test`.`t1`.`a`) + 0)
Note 1003 select <expr_cache>((select `test`.`t1`.`a`)) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by (<expr_cache>((select `test`.`t1`.`a`)) + 0)
EXPLAIN EXTENDED
SELECT (SELECT t1.a) aa, COUNT(DISTINCT b) FROM t1 GROUP BY -aa;
id select_type table type possible_keys key key_len ref rows filtered Extra
......@@ -1750,7 +1750,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select `test`.`t1`.`a`) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by -((select `test`.`t1`.`a`))
Note 1003 select <expr_cache>((select `test`.`t1`.`a`)) AS `aa`,count(distinct `test`.`t1`.`b`) AS `COUNT(DISTINCT b)` from `test`.`t1` group by -(<expr_cache>((select `test`.`t1`.`a`)))
# should return only one record
SELECT (SELECT tt.a FROM t1 tt LIMIT 1) aa, COUNT(DISTINCT b) FROM t1
GROUP BY aa;
......
mysql-test/r/subselect.result
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This diff is collapsed.
mysql-test/r/subselect3.result
View file @ 422f834f
This diff is collapsed.
mysql-test/r/subselect3_jcl6.result
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This diff is collapsed.
mysql-test/r/subselect4.result
View file @ 422f834f
......@@ -80,7 +80,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1`
Note 1003 select <expr_cache>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1`
first equivalent variant
SELECT (SELECT 1 FROM t2 WHERE d = IFNULL(c,NULL)) AS RESULT FROM t1 GROUP BY c ;
RESULT
......@@ -91,7 +91,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1` group by NULL
Note 1003 select <expr_cache>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1` group by NULL
second equivalent variant
SELECT (SELECT 1 FROM t2 WHERE d = c) AS RESULT FROM t1 GROUP BY c ;
RESULT
......@@ -102,7 +102,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1276 Field or reference 'test.t1.c' of SELECT #2 was resolved in SELECT #1
Note 1003 select (select 1 from `test`.`t2` where 0) AS `RESULT` from `test`.`t1` group by NULL
Note 1003 select <expr_cache>((select 1 from `test`.`t2` where 0)) AS `RESULT` from `test`.`t1` group by NULL
DROP TABLE t1,t2;
#
# BUG#45928 "Differing query results depending on MRR and
......
mysql-test/r/subselect_mat.result
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This diff is collapsed.
mysql-test/r/subselect_no_mat.result
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This diff is collapsed.
mysql-test/r/subselect_no_opts.result
View file @ 422f834f
This diff is collapsed.
mysql-test/r/subselect_no_semijoin.result
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This diff is collapsed.
mysql-test/r/subselect_sj.result
View file @ 422f834f
......@@ -772,11 +772,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))))
show warnings;
Level Code Message
Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))))
select a from t1
where a in (select c from t2 where d >= some(select e from t3 where b=e));
a
......
mysql-test/r/subselect_sj_jcl6.result
View file @ 422f834f
......@@ -776,11 +776,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra
3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))))
show warnings;
Level Code Message
Note 1276 Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))))
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and <nop>(<expr_cache>(<in_optimizer>(`test`.`t2`.`d`,<exists>(select 1 from `test`.`t3` where ((`test`.`t1`.`b` = `test`.`t3`.`e`) and (<cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`)))))))
select a from t1
where a in (select c from t2 where d >= some(select e from t3 where b=e));
a
......
sql/item.h
View file @ 422f834f
......@@ -2630,8 +2630,10 @@ class Item_cache_wrapper :public Item_result_field
virtual void print(String *str, enum_query_type query_type)
{
/* TODO: maybe print something for EXPLAIN EXTENDED */
return orig_item->print(str, query_type);
str->append(func_name());
str->append('(');
orig_item->print(str, query_type);
str->append(')');
}
virtual const char *full_name() const { return orig_item->full_name(); }
virtual void make_field(Send_field *field) { orig_item->make_field(field); }
......
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