mirror of
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99cce18955
The problem was that optimizer removes some outer references (it they are
constant for example) and the list of outer items built during prepare phase is
not actual during execution phase when we need it as the cache parameters.
First solution was use pointer on pointer on outer reference Item and
initialize temporary table on demand. This solved most problem except case
when optimiser also reduce Item which contains outer references ('OR' in
this bug test suite).
The solution is to build the list of outer reference items on execution
phase (after optimization) on demand (just before temporary table creation)
by walking Item tree and finding outer references among Item_ident
(Item_field/Item_ref) and Item_sum items.
Removed depends_on list (because it is not neede any mnore for the cache, in the place where it was used it replaced with upper_refs).
Added processor (collect_outer_ref_processor) and get_cache_parameters() methods to collect outer references (or other expression parameters in future).
mysql-test/r/subselect_cache.result:
A new test added.
mysql-test/r/subselect_scache.result:
Changes in creating the cache and its paremeters order or adding arguments of aggregate function (which is a parameter also, but this has no influence on the result).
mysql-test/t/subselect_cache.test:
Added a new test.
sql/item.cc:
depends_on removed.
Added processor (collect_outer_ref_processor) and get_cache_parameters() methods to collect outer references.
Item_cache_wrapper collect parameters befor initialization of its cache.
sql/item.h:
depends_on removed.
Added processor (collect_outer_ref_processor) and get_cache_parameters() methods to collect outer references.
sql/item_cmpfunc.cc:
depends_on removed.
Added processor (collect_outer_ref_processor) to collect outer references.
sql/item_cmpfunc.h:
Added processor (collect_outer_ref_processor) to collect outer references.
sql/item_subselect.cc:
depends_on removed.
Added processor get_cache_parameters() method to collect outer references.
sql/item_subselect.h:
depends_on removed.
Added processor get_cache_parameters() method to collect outer references.
sql/item_sum.cc:
Added processor (collect_outer_ref_processor) method to collect outer references.
sql/item_sum.h:
Added processor (collect_outer_ref_processor) and get_cache_parameters() methods to collect outer references.
sql/opt_range.cc:
depends_on removed.
sql/sql_base.cc:
depends_on removed.
sql/sql_class.h:
New iterator added.
sql/sql_expression_cache.cc:
Build of list of items resolved in outer query done just before creating expression cache on the first execution of the subquery which removes influence of optimizer removing items (all optimization already done).
sql/sql_expression_cache.h:
Build of list of items resolved in outer query done just before creating expression cache on the first execution of the subquery which removes influence of optimizer removing items (all optimization already done).
sql/sql_lex.cc:
depends_on removed.
sql/sql_lex.h:
depends_on removed.
sql/sql_list.h:
Added add_unique method to add only unique elements to the list.
sql/sql_select.cc:
Support of new Item list added.
sql/sql_select.h:
Support of new Item list added.
3358 lines
97 KiB
Text
3358 lines
97 KiB
Text
set optimizer_switch='subquery_cache=on';
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create table t1 (a int, b int);
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insert into t1 values (1,2),(3,4),(1,2),(3,4),(3,4),(4,5),(4,5),(5,6),(5,6),(4,5);
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create table t2 (c int, d int);
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insert into t2 values (2,3),(3,4),(5,6),(4,1);
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*
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* Test subquery as top item in different clauses
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*
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#single value subquery test (SELECT list)
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flush status;
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select a, (select d from t2 where b=c) from t1;
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a (select d from t2 where b=c)
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1 3
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3 1
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1 3
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3 1
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3 1
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4 6
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4 6
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5 NULL
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5 NULL
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4 6
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 7
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 31
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set optimizer_switch='subquery_cache=off';
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flush status;
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select a, (select d from t2 where b=c) from t1;
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a (select d from t2 where b=c)
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1 3
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3 1
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1 3
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3 1
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3 1
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4 6
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4 6
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5 NULL
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5 NULL
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4 6
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 61
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (where)
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flush status;
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select a from t1 where (select d from t2 where b=c);
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a
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1
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3
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1
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3
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3
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4
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4
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 7
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 31
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set optimizer_switch='subquery_cache=off';
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flush status;
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select a from t1 where (select d from t2 where b=c);
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a
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1
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3
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1
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3
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3
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4
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4
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 61
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (having)
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flush status;
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select a from t1 where a > 0 having (select d from t2 where b=c);
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a
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1
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3
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1
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3
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3
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4
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4
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 7
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 31
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set optimizer_switch='subquery_cache=off';
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flush status;
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select a from t1 where a > 0 having (select d from t2 where b=c);
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a
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1
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3
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1
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3
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3
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4
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4
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 61
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (OUTER JOIN ON)
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flush status;
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select ta.a, tb.a from t1 ta join t1 tb on (select d from t2 where tb.b=c);
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a a
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1 1
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3 1
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1 1
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3 1
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3 1
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4 1
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4 1
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5 1
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5 1
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4 1
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1 3
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3 3
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1 3
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3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 1
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3 1
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1 1
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3 1
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3 1
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4 1
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4 1
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5 1
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5 1
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4 1
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1 3
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3 3
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1 3
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3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 3
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3 3
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1 3
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3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 7
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 442
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set optimizer_switch='subquery_cache=off';
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flush status;
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select ta.a, tb.a from t1 ta join t1 tb on (select d from t2 where tb.b=c);
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a a
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1 1
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3 1
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1 1
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3 1
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3 1
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4 1
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4 1
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5 1
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5 1
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4 1
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1 3
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3 3
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1 3
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3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 1
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3 1
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1 1
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3 1
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3 1
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4 1
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4 1
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5 1
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5 1
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4 1
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1 3
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3 3
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1 3
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3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 3
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3 3
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1 3
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|
3 3
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3 3
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4 3
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4 3
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5 3
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5 3
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4 3
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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1 4
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3 4
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1 4
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3 4
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3 4
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4 4
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4 4
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5 4
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5 4
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4 4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 472
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (GROUP BY)
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flush status;
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select max(a) from t1 GROUP BY (select d from t2 where b=c);
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max(a)
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5
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3
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1
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 10
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 17
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 4
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Handler_read_rnd_next 36
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set optimizer_switch='subquery_cache=off';
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flush status;
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select max(a) from t1 GROUP BY (select d from t2 where b=c);
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max(a)
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5
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3
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1
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 10
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 4
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Handler_read_rnd_next 86
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (distinct GROUP BY)
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flush status;
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select distinct max(a) from t1 GROUP BY (select d from t2 where b=c);
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max(a)
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5
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3
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1
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 10
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 17
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 4
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Handler_read_rnd_next 41
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set optimizer_switch='subquery_cache=off';
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flush status;
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select distinct max(a) from t1 GROUP BY (select d from t2 where b=c);
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max(a)
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5
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3
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1
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4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 10
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 4
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Handler_read_rnd_next 91
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (ORDER BY)
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flush status;
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select a from t1 ORDER BY (select d from t2 where b=c);
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a
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5
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5
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3
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3
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3
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1
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1
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|
4
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|
4
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|
4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 7
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 10
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Handler_read_rnd_next 42
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set optimizer_switch='subquery_cache=off';
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flush status;
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select a from t1 ORDER BY (select d from t2 where b=c);
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a
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5
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5
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3
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3
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|
3
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1
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1
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|
4
|
|
4
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|
4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 0
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Subquery_cache_miss 0
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 10
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Handler_read_rnd_next 72
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (distinct ORDER BY)
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flush status;
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select distinct a from t1 ORDER BY (select d from t2 where b=c);
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a
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5
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|
3
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1
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|
4
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show status like "subquery_cache%";
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Variable_name Value
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Subquery_cache_hit 6
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Subquery_cache_miss 4
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show status like '%Handler_read%';
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Variable_name Value
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|
Handler_read_first 0
|
|
Handler_read_key 7
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|
Handler_read_next 0
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Handler_read_prev 0
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|
Handler_read_rnd 4
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Handler_read_rnd_next 37
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set optimizer_switch='subquery_cache=off';
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flush status;
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select distinct a from t1 ORDER BY (select d from t2 where b=c);
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a
|
|
5
|
|
3
|
|
1
|
|
4
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 0
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 4
|
|
Handler_read_rnd_next 67
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set optimizer_switch='subquery_cache=on';
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#single value subquery test (LEFT JOIN ON)
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flush status;
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select ta.a, tb.a from t1 ta left join t1 tb on (select d from t2 where tb.b=c);
|
|
a a
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|
1 1
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|
1 3
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|
1 1
|
|
1 3
|
|
1 3
|
|
1 4
|
|
1 4
|
|
1 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
1 1
|
|
1 3
|
|
1 1
|
|
1 3
|
|
1 3
|
|
1 4
|
|
1 4
|
|
1 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
5 1
|
|
5 3
|
|
5 1
|
|
5 3
|
|
5 3
|
|
5 4
|
|
5 4
|
|
5 4
|
|
5 1
|
|
5 3
|
|
5 1
|
|
5 3
|
|
5 3
|
|
5 4
|
|
5 4
|
|
5 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 106
|
|
Subquery_cache_miss 4
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 70
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 141
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
select ta.a, tb.a from t1 ta left join t1 tb on (select d from t2 where tb.b=c);
|
|
a a
|
|
1 1
|
|
1 3
|
|
1 1
|
|
1 3
|
|
1 3
|
|
1 4
|
|
1 4
|
|
1 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
1 1
|
|
1 3
|
|
1 1
|
|
1 3
|
|
1 3
|
|
1 4
|
|
1 4
|
|
1 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
3 1
|
|
3 3
|
|
3 1
|
|
3 3
|
|
3 3
|
|
3 4
|
|
3 4
|
|
3 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
5 1
|
|
5 3
|
|
5 1
|
|
5 3
|
|
5 3
|
|
5 4
|
|
5 4
|
|
5 4
|
|
5 1
|
|
5 3
|
|
5 1
|
|
5 3
|
|
5 3
|
|
5 4
|
|
5 4
|
|
5 4
|
|
4 1
|
|
4 3
|
|
4 1
|
|
4 3
|
|
4 3
|
|
4 4
|
|
4 4
|
|
4 4
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 0
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 671
|
|
set optimizer_switch='subquery_cache=on';
|
|
#single value subquery test (PS)
|
|
prepare stmt1 from 'select a, (select d from t2 where b=c) + 1 from t1';
|
|
execute stmt1;
|
|
a (select d from t2 where b=c) + 1
|
|
1 4
|
|
3 2
|
|
1 4
|
|
3 2
|
|
3 2
|
|
4 7
|
|
4 7
|
|
5 NULL
|
|
5 NULL
|
|
4 7
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 4
|
|
execute stmt1;
|
|
a (select d from t2 where b=c) + 1
|
|
1 4
|
|
3 2
|
|
1 4
|
|
3 2
|
|
3 2
|
|
4 7
|
|
4 7
|
|
5 NULL
|
|
5 NULL
|
|
4 7
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 12
|
|
Subquery_cache_miss 8
|
|
deallocate prepare stmt1;
|
|
#single value subquery test (SP)
|
|
CREATE PROCEDURE p1() select a, (select d from t2 where b=c) + 1 from t1;
|
|
call p1;
|
|
a (select d from t2 where b=c) + 1
|
|
1 4
|
|
3 2
|
|
1 4
|
|
3 2
|
|
3 2
|
|
4 7
|
|
4 7
|
|
5 NULL
|
|
5 NULL
|
|
4 7
|
|
call p1;
|
|
a (select d from t2 where b=c) + 1
|
|
1 4
|
|
3 2
|
|
1 4
|
|
3 2
|
|
3 2
|
|
4 7
|
|
4 7
|
|
5 NULL
|
|
5 NULL
|
|
4 7
|
|
drop procedure p1;
|
|
#IN subquery test
|
|
flush status;
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
select a, b , b in (select d from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 4
|
|
insert into t1 values (7,8),(9,NULL);
|
|
select a, b , b in (select d from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
7 8 0
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 12
|
|
Subquery_cache_miss 10
|
|
insert into t2 values (8,NULL);
|
|
select a, b , b in (select d from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 NULL
|
|
3 4 1
|
|
1 2 NULL
|
|
3 4 1
|
|
3 4 1
|
|
4 5 NULL
|
|
4 5 NULL
|
|
5 6 1
|
|
5 6 1
|
|
4 5 NULL
|
|
7 8 NULL
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 18
|
|
Subquery_cache_miss 16
|
|
# multicolumn NOT IN with NULLs
|
|
flush status;
|
|
set optimizer_switch='subquery_cache=off';
|
|
select a, b, (b, a) not in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 1
|
|
3 4 0
|
|
1 2 1
|
|
3 4 0
|
|
3 4 0
|
|
4 5 1
|
|
4 5 1
|
|
5 6 0
|
|
5 6 0
|
|
4 5 1
|
|
7 8 1
|
|
9 NULL 1
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
set optimizer_switch='subquery_cache=on';
|
|
select a, b, (b, a) not in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 1
|
|
3 4 0
|
|
1 2 1
|
|
3 4 0
|
|
3 4 0
|
|
4 5 1
|
|
4 5 1
|
|
5 6 0
|
|
5 6 0
|
|
4 5 1
|
|
7 8 1
|
|
9 NULL 1
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 6
|
|
# multicolumn NOT IN with NULLs (other order)
|
|
flush status;
|
|
set optimizer_switch='subquery_cache=off';
|
|
select a, b, (a, b) not in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 1
|
|
3 4 1
|
|
1 2 1
|
|
3 4 1
|
|
3 4 1
|
|
4 5 1
|
|
4 5 1
|
|
5 6 1
|
|
5 6 1
|
|
4 5 1
|
|
7 8 NULL
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
set optimizer_switch='subquery_cache=on';
|
|
select a, b, (a, b) not in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 1
|
|
3 4 1
|
|
1 2 1
|
|
3 4 1
|
|
3 4 1
|
|
4 5 1
|
|
4 5 1
|
|
5 6 1
|
|
5 6 1
|
|
4 5 1
|
|
7 8 NULL
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 6
|
|
# multicolumn IN with NULLs
|
|
flush status;
|
|
set optimizer_switch='subquery_cache=off';
|
|
select a, b, (b, a) in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
7 8 0
|
|
9 NULL 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
set optimizer_switch='subquery_cache=on';
|
|
select a, b, (b, a) in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
7 8 0
|
|
9 NULL 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 6
|
|
# multicolumn IN with NULLs (other order)
|
|
flush status;
|
|
set optimizer_switch='subquery_cache=off';
|
|
select a, b, (a, b) in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 0
|
|
1 2 0
|
|
3 4 0
|
|
3 4 0
|
|
4 5 0
|
|
4 5 0
|
|
5 6 0
|
|
5 6 0
|
|
4 5 0
|
|
7 8 NULL
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
set optimizer_switch='subquery_cache=on';
|
|
select a, b, (a, b) in (select d, c from t2) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 0
|
|
1 2 0
|
|
3 4 0
|
|
3 4 0
|
|
4 5 0
|
|
4 5 0
|
|
5 6 0
|
|
5 6 0
|
|
4 5 0
|
|
7 8 NULL
|
|
9 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 6
|
|
#IN subquery test (PS)
|
|
delete from t1 where a > 6;
|
|
delete from t2 where c > 6;
|
|
prepare stmt1 from 'select a, b , b in (select d from t2) as SUBS from t1';
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 12
|
|
Subquery_cache_miss 10
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 18
|
|
Subquery_cache_miss 14
|
|
insert into t1 values (7,8),(9,NULL);
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 24
|
|
Subquery_cache_miss 20
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 30
|
|
Subquery_cache_miss 26
|
|
insert into t2 values (8,NULL);
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 NULL
|
|
3 4 1
|
|
1 2 NULL
|
|
3 4 1
|
|
3 4 1
|
|
4 5 NULL
|
|
4 5 NULL
|
|
5 6 1
|
|
5 6 1
|
|
4 5 NULL
|
|
9 NULL NULL
|
|
7 8 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 36
|
|
Subquery_cache_miss 32
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 NULL
|
|
3 4 1
|
|
1 2 NULL
|
|
3 4 1
|
|
3 4 1
|
|
4 5 NULL
|
|
4 5 NULL
|
|
5 6 1
|
|
5 6 1
|
|
4 5 NULL
|
|
9 NULL NULL
|
|
7 8 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 42
|
|
Subquery_cache_miss 38
|
|
deallocate prepare stmt1;
|
|
#IN subquery test (SP)
|
|
delete from t1 where a > 6;
|
|
delete from t2 where c > 6;
|
|
CREATE PROCEDURE p1() select a, b , b in (select d from t2) as SUBS from t1;
|
|
call p1();
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 48
|
|
Subquery_cache_miss 42
|
|
call p1();
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 54
|
|
Subquery_cache_miss 46
|
|
insert into t1 values (7,8),(9,NULL);
|
|
call p1();
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 60
|
|
Subquery_cache_miss 52
|
|
call p1();
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 66
|
|
Subquery_cache_miss 58
|
|
insert into t2 values (8,NULL);
|
|
call p1();
|
|
a b SUBS
|
|
1 2 NULL
|
|
3 4 1
|
|
1 2 NULL
|
|
3 4 1
|
|
3 4 1
|
|
4 5 NULL
|
|
4 5 NULL
|
|
5 6 1
|
|
5 6 1
|
|
4 5 NULL
|
|
9 NULL NULL
|
|
7 8 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 72
|
|
Subquery_cache_miss 64
|
|
call p1();
|
|
a b SUBS
|
|
1 2 NULL
|
|
3 4 1
|
|
1 2 NULL
|
|
3 4 1
|
|
3 4 1
|
|
4 5 NULL
|
|
4 5 NULL
|
|
5 6 1
|
|
5 6 1
|
|
4 5 NULL
|
|
9 NULL NULL
|
|
7 8 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 78
|
|
Subquery_cache_miss 70
|
|
drop procedure p1;
|
|
# test of simple exists
|
|
select a, b , exists (select * from t2 where b=d) as SUBS from t1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL 0
|
|
7 8 0
|
|
# test of prepared statement exists
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 84
|
|
Subquery_cache_miss 76
|
|
prepare stmt1 from 'select a, b , exists (select * from t2 where b=d) as SUBS from t1';
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL 0
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 90
|
|
Subquery_cache_miss 82
|
|
execute stmt1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL 0
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 96
|
|
Subquery_cache_miss 88
|
|
deallocate prepare stmt1;
|
|
# test of stored procedure exists
|
|
CREATE PROCEDURE p1() select a, b , exists (select * from t2 where b=d) as SUBS from t1;
|
|
call p1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL 0
|
|
7 8 0
|
|
call p1;
|
|
a b SUBS
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 1
|
|
5 6 1
|
|
4 5 0
|
|
9 NULL 0
|
|
7 8 0
|
|
drop procedure p1;
|
|
#several subqueries
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
select a, b , exists (select * from t2 where b=d) as SUBSE, b in (select d from t2) as SUBSI, (select d from t2 where b=c) SUBSR from t1;
|
|
a b SUBSE SUBSI SUBSR
|
|
1 2 0 NULL 3
|
|
3 4 1 1 1
|
|
1 2 0 NULL 3
|
|
3 4 1 1 1
|
|
3 4 1 1 1
|
|
4 5 0 NULL 6
|
|
4 5 0 NULL 6
|
|
5 6 1 1 NULL
|
|
5 6 1 1 NULL
|
|
4 5 0 NULL 6
|
|
9 NULL 0 NULL NULL
|
|
7 8 0 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 0
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 188
|
|
set optimizer_switch='subquery_cache=on';
|
|
flush status;
|
|
select a, b , exists (select * from t2 where b=d) as SUBSE, b in (select d from t2) as SUBSI, (select d from t2 where b=c) SUBSR from t1;
|
|
a b SUBSE SUBSI SUBSR
|
|
1 2 0 NULL 3
|
|
3 4 1 1 1
|
|
1 2 0 NULL 3
|
|
3 4 1 1 1
|
|
3 4 1 1 1
|
|
4 5 0 NULL 6
|
|
4 5 0 NULL 6
|
|
5 6 1 1 NULL
|
|
5 6 1 1 NULL
|
|
4 5 0 NULL 6
|
|
9 NULL 0 NULL NULL
|
|
7 8 0 NULL NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 18
|
|
Subquery_cache_miss 18
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 27
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 102
|
|
#several subqueries (several levels)
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
select a, b, (select exists (select * from t2 where b=d) from t2 where b=c) as SUNS1 from t1;
|
|
a b SUNS1
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 NULL
|
|
5 6 NULL
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 0
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 127
|
|
set optimizer_switch='subquery_cache=on';
|
|
flush status;
|
|
select a, b, (select exists (select * from t2 where b=d) from t2 where b=c) as SUNS1 from t1;
|
|
a b SUNS1
|
|
1 2 0
|
|
3 4 1
|
|
1 2 0
|
|
3 4 1
|
|
3 4 1
|
|
4 5 0
|
|
4 5 0
|
|
5 6 NULL
|
|
5 6 NULL
|
|
4 5 0
|
|
9 NULL NULL
|
|
7 8 0
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 6
|
|
Subquery_cache_miss 10
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 13
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 69
|
|
#clean up
|
|
drop table t1,t2;
|
|
test different types
|
|
#int
|
|
CREATE TABLE t1 ( a int, b int);
|
|
INSERT INTO t1 VALUES(1,1),(2,2),(3,3);
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = 2);
|
|
a
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#char
|
|
CREATE TABLE t1 ( a char(1), b char (1));
|
|
INSERT INTO t1 VALUES('1','1'),('2','2'),('3','3');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2');
|
|
a
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#decimal
|
|
CREATE TABLE t1 ( a decimal(3,1), b decimal(3,1));
|
|
INSERT INTO t1 VALUES(1,1),(2,2),(3,3);
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = 2);
|
|
a
|
|
1.0
|
|
3.0
|
|
DROP TABLE t1;
|
|
#date
|
|
CREATE TABLE t1 ( a date, b date);
|
|
INSERT INTO t1 VALUES('1000-01-01','1000-01-01'),('2000-02-01','2000-02-01'),('3000-03-03','3000-03-03');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2000-02-01');
|
|
a
|
|
1000-01-01
|
|
3000-03-03
|
|
DROP TABLE t1;
|
|
#datetime
|
|
CREATE TABLE t1 ( a datetime, b datetime);
|
|
INSERT INTO t1 VALUES('1000-01-01 01:01:01','1000-01-01 01:01:01'),('2000-02-02 02:02:02','2000-02-02 02:02:02'),('3000-03-03 03:03:03','3000-03-03 03:03:03');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2000-02-02 02:02:02');
|
|
a
|
|
1000-01-01 01:01:01
|
|
3000-03-03 03:03:03
|
|
DROP TABLE t1;
|
|
#time
|
|
CREATE TABLE t1 ( a time, b time);
|
|
INSERT INTO t1 VALUES('01:01:01','01:01:01'),('02:02:02','02:02:02'),('03:03:03','03:03:03');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '02:02:02');
|
|
a
|
|
01:01:01
|
|
03:03:03
|
|
DROP TABLE t1;
|
|
#timestamp
|
|
CREATE TABLE t1 ( a timestamp, b timestamp);
|
|
INSERT INTO t1 VALUES('2000-02-02 01:01:01','2000-02-02 01:01:01'),('2000-02-02 02:02:02','2000-02-02 02:02:02'),('2000-02-02 03:03:03','2000-02-02 03:03:03');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2000-02-02 02:02:02');
|
|
a
|
|
2000-02-02 01:01:01
|
|
2000-02-02 03:03:03
|
|
DROP TABLE t1;
|
|
#bit
|
|
CREATE TABLE t1 ( a bit(20), b bit(20));
|
|
INSERT INTO t1 VALUES(1,1),(2,2),(3,3);
|
|
SELECT a+0 FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = 2);
|
|
a+0
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#enum
|
|
CREATE TABLE t1 ( a enum('1','2','3'), b enum('1','2','3'));
|
|
INSERT INTO t1 VALUES('1','1'),('2','2'),('3','3');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2');
|
|
a
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#set
|
|
CREATE TABLE t1 ( a set('1','2','3'), b set('1','2','3'));
|
|
INSERT INTO t1 VALUES('1','1'),('2','2'),('3','3');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2');
|
|
a
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#blob
|
|
CREATE TABLE t1 ( a blob, b blob);
|
|
INSERT INTO t1 VALUES('1','1'),('2','2'),('3','3');
|
|
SELECT a FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = '2');
|
|
a
|
|
1
|
|
3
|
|
DROP TABLE t1;
|
|
#geometry
|
|
CREATE TABLE t1 ( a geometry, b geometry);
|
|
INSERT INTO t1 VALUES(POINT(1,1),POINT(1,1)),(POINT(2,2),POINT(2,2)),(POINT(3,3),POINT(3,3));
|
|
SELECT astext(a) FROM t1 WHERE NOT a IN (SELECT a FROM t1 WHERE b = POINT(2,2));
|
|
astext(a)
|
|
POINT(1 1)
|
|
POINT(3 3)
|
|
DROP TABLE t1;
|
|
#uncacheable queries test (random and side effect)
|
|
flush status;
|
|
CREATE TABLE t1 (a int);
|
|
INSERT INTO t1 VALUES (2), (4), (1), (3);
|
|
select a, a in (select a from t1) from t1 as ext;
|
|
a a in (select a from t1)
|
|
2 1
|
|
4 1
|
|
1 1
|
|
3 1
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 4
|
|
select a, a in (select a from t1 where -1 < rand()) from t1 as ext;
|
|
a a in (select a from t1 where -1 < rand())
|
|
2 1
|
|
4 1
|
|
1 1
|
|
3 1
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 4
|
|
select a, a in (select a from t1 where -1 < benchmark(a,100)) from t1 as ext;
|
|
a a in (select a from t1 where -1 < benchmark(a,100))
|
|
2 1
|
|
4 1
|
|
1 1
|
|
3 1
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 4
|
|
drop table t1;
|
|
#test of sql_big_tables switch and outer table reference in subquery with grouping
|
|
set option sql_big_tables=1;
|
|
CREATE TABLE t1 (a INT PRIMARY KEY, b INT);
|
|
INSERT INTO t1 VALUES (1,1),(2,1),(3,2),(4,2),(5,3),(6,3);
|
|
SELECT (SELECT t1_outer.a FROM t1 AS t1_inner GROUP BY b LIMIT 1) FROM t1 AS t1_outer;
|
|
(SELECT t1_outer.a FROM t1 AS t1_inner GROUP BY b LIMIT 1)
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
6
|
|
drop table t1;
|
|
set option sql_big_tables=0;
|
|
#test of function reference to outer query
|
|
set local group_concat_max_len=400;
|
|
create table t2 (a int, b int);
|
|
insert into t2 values (1,1), (2,2);
|
|
select b x, (select group_concat(x) from t2) from t2;
|
|
x (select group_concat(x) from t2)
|
|
1 1,1
|
|
2 2,2
|
|
drop table t2;
|
|
set local group_concat_max_len=default;
|
|
#aggregate functions
|
|
CREATE TABLE t1 (a int, b INT);
|
|
CREATE TABLE t2 (c int, d INT);
|
|
insert into t1 values (2,1), (3,1), (2,4), (3,4), (10,2), (20,2), (2,5),
|
|
(3,5), (100,3), (200,3), (10,6), (20,6), (20,7), (100,8), (200,8);
|
|
insert into t2 values (1,1),(3,3),(20,20);
|
|
aggregate function as parameter of subquery
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
select max(a), (select max(a) from t2 where max(a)=c) from t1 group by b;
|
|
max(a) (select max(a) from t2 where max(a)=c)
|
|
3 3
|
|
20 20
|
|
200 NULL
|
|
3 3
|
|
3 3
|
|
20 20
|
|
20 20
|
|
200 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 15
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 8
|
|
Handler_read_rnd_next 57
|
|
set optimizer_switch='subquery_cache=on';
|
|
flush status;
|
|
select max(a), (select max(a) from t2 where max(a)=c) from t1 group by b;
|
|
max(a) (select max(a) from t2 where max(a)=c)
|
|
3 3
|
|
20 20
|
|
200 NULL
|
|
3 3
|
|
3 3
|
|
20 20
|
|
20 20
|
|
200 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 5
|
|
Subquery_cache_miss 3
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 21
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 8
|
|
Handler_read_rnd_next 37
|
|
argument of aggregate function as parameter of subquery (illegal use)
|
|
set optimizer_switch='subquery_cache=off';
|
|
flush status;
|
|
select max(a), (select a from t2 where a=c) from t1 group by b;
|
|
max(a) (select a from t2 where a=c)
|
|
3 NULL
|
|
20 NULL
|
|
200 NULL
|
|
3 NULL
|
|
3 NULL
|
|
20 NULL
|
|
20 20
|
|
200 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 15
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 8
|
|
Handler_read_rnd_next 57
|
|
set optimizer_switch='subquery_cache=on';
|
|
flush status;
|
|
select max(a), (select a from t2 where a=c) from t1 group by b;
|
|
max(a) (select a from t2 where a=c)
|
|
3 NULL
|
|
20 NULL
|
|
200 NULL
|
|
3 NULL
|
|
3 NULL
|
|
20 NULL
|
|
20 20
|
|
200 NULL
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 4
|
|
Subquery_cache_miss 4
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 22
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 8
|
|
Handler_read_rnd_next 41
|
|
drop table t1,t2;
|
|
#test of flattening subquery optimisations and cache
|
|
create table t0 (a int);
|
|
insert into t0 values (9),(8),(7),(6),(5),(4),(3),(2),(1),(0);
|
|
create table t1(a int, b int);
|
|
insert into t1 values
|
|
(0,0),(1,1),(2,2),(0,0),(1,1),(2,2),(0,0),(1,1),(2,2),(0,0),(1,1),(2,2),(0,0),(1,1),(2,2);
|
|
create table t2 (pk int, a int, primary key(pk));
|
|
insert into t2 select a,a from t0;
|
|
set optimizer_switch='default,semijoin=on,materialization=on,subquery_cache=on';
|
|
flush status;
|
|
select * from t1 where a in (select pk from t2);
|
|
a b
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 15
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 16
|
|
alter table t2 drop primary key;
|
|
set optimizer_switch='default,semijoin=off,materialization=off,subquery_cache=off';
|
|
explain select * from t1 where a in (select pk from t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 15 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 10 Using where
|
|
flush status;
|
|
select * from t1 where a in (select pk from t2);
|
|
a b
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 0
|
|
Subquery_cache_miss 0
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 0
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 151
|
|
set optimizer_switch='default,semijoin=off,materialization=off,subquery_cache=on';
|
|
explain select * from t1 where a in (select pk from t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 15 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 10 Using where
|
|
flush status;
|
|
select * from t1 where a in (select pk from t2);
|
|
a b
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 12
|
|
Subquery_cache_miss 3
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 15
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 43
|
|
set optimizer_switch='default,semijoin=off,materialization=on,subquery_cache=on';
|
|
explain select * from t1 where a in (select pk from t2);
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 15 Using where
|
|
2 SUBQUERY t2 ALL NULL NULL NULL NULL 10
|
|
flush status;
|
|
select * from t1 where a in (select pk from t2);
|
|
a b
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
0 0
|
|
1 1
|
|
2 2
|
|
show status like "subquery_cache%";
|
|
Variable_name Value
|
|
Subquery_cache_hit 12
|
|
Subquery_cache_miss 3
|
|
show status like '%Handler_read%';
|
|
Variable_name Value
|
|
Handler_read_first 0
|
|
Handler_read_key 18
|
|
Handler_read_next 0
|
|
Handler_read_prev 0
|
|
Handler_read_rnd 0
|
|
Handler_read_rnd_next 27
|
|
drop table t0,t1,t2;
|
|
set optimizer_switch='default';
|
|
#launchpad BUG#608834
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (10,7,8,'01:27:35','v','v');
|
|
INSERT INTO `t2` VALUES (11,1,9,'19:48:31','r','r');
|
|
INSERT INTO `t2` VALUES (12,5,9,'00:00:00','a','a');
|
|
INSERT INTO `t2` VALUES (13,3,186,'19:53:05','m','m');
|
|
INSERT INTO `t2` VALUES (14,6,NULL,'19:18:56','y','y');
|
|
INSERT INTO `t2` VALUES (15,92,2,'10:55:12','j','j');
|
|
INSERT INTO `t2` VALUES (16,7,3,'00:25:00','d','d');
|
|
INSERT INTO `t2` VALUES (17,NULL,0,'12:35:47','z','z');
|
|
INSERT INTO `t2` VALUES (18,3,133,'19:53:03','e','e');
|
|
INSERT INTO `t2` VALUES (19,5,1,'17:53:30','h','h');
|
|
INSERT INTO `t2` VALUES (20,1,8,'11:35:49','b','b');
|
|
INSERT INTO `t2` VALUES (21,2,5,NULL,'s','s');
|
|
INSERT INTO `t2` VALUES (22,NULL,5,'06:01:40','e','e');
|
|
INSERT INTO `t2` VALUES (23,1,8,'05:45:11','j','j');
|
|
INSERT INTO `t2` VALUES (24,0,6,'00:00:00','e','e');
|
|
INSERT INTO `t2` VALUES (25,210,51,'00:00:00','f','f');
|
|
INSERT INTO `t2` VALUES (26,8,4,'06:11:01','v','v');
|
|
INSERT INTO `t2` VALUES (27,7,7,'13:02:46','x','x');
|
|
INSERT INTO `t2` VALUES (28,5,6,'21:44:25','m','m');
|
|
INSERT INTO `t2` VALUES (29,NULL,4,'22:43:58','c','c');
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,NULL,2,'11:28:45','w','w');
|
|
INSERT INTO `t1` VALUES (2,7,9,'20:25:14','m','m');
|
|
INSERT INTO `t1` VALUES (3,9,3,'13:47:24','m','m');
|
|
INSERT INTO `t1` VALUES (4,7,9,'19:24:11','k','k');
|
|
INSERT INTO `t1` VALUES (5,4,NULL,'15:59:13','r','r');
|
|
INSERT INTO `t1` VALUES (6,2,9,'00:00:00','t','t');
|
|
INSERT INTO `t1` VALUES (7,6,3,'15:15:04','j','j');
|
|
INSERT INTO `t1` VALUES (8,8,8,'11:32:06','u','u');
|
|
INSERT INTO `t1` VALUES (9,NULL,8,'18:32:33','h','h');
|
|
INSERT INTO `t1` VALUES (10,5,53,'15:19:25','o','o');
|
|
INSERT INTO `t1` VALUES (11,NULL,0,'19:03:19',NULL,NULL);
|
|
INSERT INTO `t1` VALUES (12,6,5,'00:39:46','k','k');
|
|
INSERT INTO `t1` VALUES (13,188,166,NULL,'e','e');
|
|
INSERT INTO `t1` VALUES (14,2,3,'00:00:00','n','n');
|
|
INSERT INTO `t1` VALUES (15,1,0,'13:12:11','t','t');
|
|
INSERT INTO `t1` VALUES (16,1,1,'04:56:48','c','c');
|
|
INSERT INTO `t1` VALUES (17,0,9,'19:56:05','m','m');
|
|
INSERT INTO `t1` VALUES (18,9,5,'19:35:19','y','y');
|
|
INSERT INTO `t1` VALUES (19,NULL,6,'05:03:03','f','f');
|
|
INSERT INTO `t1` VALUES (20,4,2,'18:38:59','d','d');
|
|
set @@optimizer_switch='subquery_cache=off';
|
|
/* cache is off */ SELECT (
|
|
SELECT 4
|
|
FROM DUAL ) AS field1 , SUM( DISTINCT table1 . `pk` ) AS field2 , (
|
|
SELECT MAX( SUBQUERY2_t1 . `col_int_nokey` ) AS SUBQUERY2_field1
|
|
FROM ( t1 AS SUBQUERY2_t1 INNER JOIN t1 AS SUBQUERY2_t2 ON (SUBQUERY2_t2 . `col_int_key` = SUBQUERY2_t1 . `pk` ) )
|
|
WHERE SUBQUERY2_t2 . `col_varchar_nokey` <= table1 . `col_varchar_key` OR SUBQUERY2_t1 . `col_int_nokey` < table1 . `pk` ) AS field3 , table1 . `col_time_key` AS field4 , table1 . `col_int_key` AS field5 , CONCAT ( table2 . `col_varchar_nokey` , table1 . `col_varchar_key` ) AS field6
|
|
FROM ( t1 AS table1 INNER JOIN ( ( t1 AS table2 LEFT JOIN t2 AS table3 ON (table3 . `col_varchar_key` = table2 . `col_varchar_key` ) ) ) ON (table3 . `col_varchar_key` = table2 . `col_varchar_nokey` ) )
|
|
WHERE ( table2 . `col_varchar_nokey` NOT IN (
|
|
SELECT 'd' UNION
|
|
SELECT 'u' ) ) OR table3 . `col_varchar_nokey` <= table1 . `col_varchar_key`
|
|
GROUP BY field1, field3, field4, field5, field6
|
|
ORDER BY table1 . `col_int_key` , field1, field2, field3, field4, field5, field6
|
|
;
|
|
field1 field2 field3 field4 field5 field6
|
|
4 5 9 15:59:13 NULL cr
|
|
4 5 9 15:59:13 NULL dr
|
|
4 5 9 15:59:13 NULL er
|
|
4 5 9 15:59:13 NULL fr
|
|
4 5 9 15:59:13 NULL hr
|
|
4 5 9 15:59:13 NULL jr
|
|
4 5 9 15:59:13 NULL mr
|
|
4 5 9 15:59:13 NULL rr
|
|
4 5 9 15:59:13 NULL yr
|
|
4 11 9 19:03:19 0 NULL
|
|
4 15 9 13:12:11 0 ct
|
|
4 15 9 13:12:11 0 dt
|
|
4 15 9 13:12:11 0 et
|
|
4 15 9 13:12:11 0 ft
|
|
4 15 9 13:12:11 0 ht
|
|
4 15 9 13:12:11 0 jt
|
|
4 15 9 13:12:11 0 mt
|
|
4 15 9 13:12:11 0 rt
|
|
4 15 9 13:12:11 0 yt
|
|
4 16 9 04:56:48 1 cc
|
|
4 16 9 04:56:48 1 ec
|
|
4 16 9 04:56:48 1 fc
|
|
4 16 9 04:56:48 1 hc
|
|
4 16 9 04:56:48 1 jc
|
|
4 16 9 04:56:48 1 mc
|
|
4 16 9 04:56:48 1 rc
|
|
4 16 9 04:56:48 1 yc
|
|
4 1 9 11:28:45 2 cw
|
|
4 1 9 11:28:45 2 dw
|
|
4 1 9 11:28:45 2 ew
|
|
4 1 9 11:28:45 2 fw
|
|
4 1 9 11:28:45 2 hw
|
|
4 1 9 11:28:45 2 jw
|
|
4 1 9 11:28:45 2 mw
|
|
4 1 9 11:28:45 2 rw
|
|
4 1 9 11:28:45 2 yw
|
|
4 20 9 18:38:59 2 cd
|
|
4 20 9 18:38:59 2 dd
|
|
4 20 9 18:38:59 2 ed
|
|
4 20 9 18:38:59 2 fd
|
|
4 20 9 18:38:59 2 hd
|
|
4 20 9 18:38:59 2 jd
|
|
4 20 9 18:38:59 2 md
|
|
4 20 9 18:38:59 2 rd
|
|
4 20 9 18:38:59 2 yd
|
|
4 3 9 13:47:24 3 cm
|
|
4 3 9 13:47:24 3 dm
|
|
4 3 9 13:47:24 3 em
|
|
4 3 9 13:47:24 3 fm
|
|
4 3 9 13:47:24 3 hm
|
|
4 3 9 13:47:24 3 jm
|
|
4 3 9 13:47:24 3 mm
|
|
4 3 9 13:47:24 3 rm
|
|
4 3 9 13:47:24 3 ym
|
|
4 7 9 15:15:04 3 cj
|
|
4 7 9 15:15:04 3 dj
|
|
4 7 9 15:15:04 3 ej
|
|
4 7 9 15:15:04 3 fj
|
|
4 7 9 15:15:04 3 hj
|
|
4 7 9 15:15:04 3 jj
|
|
4 7 9 15:15:04 3 mj
|
|
4 7 9 15:15:04 3 rj
|
|
4 7 9 15:15:04 3 yj
|
|
4 14 9 00:00:00 3 cn
|
|
4 14 9 00:00:00 3 dn
|
|
4 14 9 00:00:00 3 en
|
|
4 14 9 00:00:00 3 fn
|
|
4 14 9 00:00:00 3 hn
|
|
4 14 9 00:00:00 3 jn
|
|
4 14 9 00:00:00 3 mn
|
|
4 14 9 00:00:00 3 rn
|
|
4 14 9 00:00:00 3 yn
|
|
4 12 9 00:39:46 5 ck
|
|
4 12 9 00:39:46 5 dk
|
|
4 12 9 00:39:46 5 ek
|
|
4 12 9 00:39:46 5 fk
|
|
4 12 9 00:39:46 5 hk
|
|
4 12 9 00:39:46 5 jk
|
|
4 12 9 00:39:46 5 mk
|
|
4 12 9 00:39:46 5 rk
|
|
4 12 9 00:39:46 5 yk
|
|
4 18 9 19:35:19 5 cy
|
|
4 18 9 19:35:19 5 dy
|
|
4 18 9 19:35:19 5 ey
|
|
4 18 9 19:35:19 5 fy
|
|
4 18 9 19:35:19 5 hy
|
|
4 18 9 19:35:19 5 jy
|
|
4 18 9 19:35:19 5 my
|
|
4 18 9 19:35:19 5 ry
|
|
4 18 9 19:35:19 5 yy
|
|
4 19 9 05:03:03 6 cf
|
|
4 19 9 05:03:03 6 df
|
|
4 19 9 05:03:03 6 ef
|
|
4 19 9 05:03:03 6 ff
|
|
4 19 9 05:03:03 6 hf
|
|
4 19 9 05:03:03 6 jf
|
|
4 19 9 05:03:03 6 mf
|
|
4 19 9 05:03:03 6 rf
|
|
4 19 9 05:03:03 6 yf
|
|
4 8 9 11:32:06 8 cu
|
|
4 8 9 11:32:06 8 du
|
|
4 8 9 11:32:06 8 eu
|
|
4 8 9 11:32:06 8 fu
|
|
4 8 9 11:32:06 8 hu
|
|
4 8 9 11:32:06 8 ju
|
|
4 8 9 11:32:06 8 mu
|
|
4 8 9 11:32:06 8 ru
|
|
4 8 9 11:32:06 8 yu
|
|
4 9 8 18:32:33 8 ch
|
|
4 9 8 18:32:33 8 dh
|
|
4 9 8 18:32:33 8 eh
|
|
4 9 8 18:32:33 8 fh
|
|
4 9 8 18:32:33 8 hh
|
|
4 9 8 18:32:33 8 jh
|
|
4 9 8 18:32:33 8 mh
|
|
4 9 8 18:32:33 8 rh
|
|
4 9 8 18:32:33 8 yh
|
|
4 2 9 20:25:14 9 cm
|
|
4 2 9 20:25:14 9 dm
|
|
4 2 9 20:25:14 9 em
|
|
4 2 9 20:25:14 9 fm
|
|
4 2 9 20:25:14 9 hm
|
|
4 2 9 20:25:14 9 jm
|
|
4 2 9 20:25:14 9 mm
|
|
4 2 9 20:25:14 9 rm
|
|
4 2 9 20:25:14 9 ym
|
|
4 4 9 19:24:11 9 ck
|
|
4 4 9 19:24:11 9 dk
|
|
4 4 9 19:24:11 9 ek
|
|
4 4 9 19:24:11 9 fk
|
|
4 4 9 19:24:11 9 hk
|
|
4 4 9 19:24:11 9 jk
|
|
4 4 9 19:24:11 9 mk
|
|
4 4 9 19:24:11 9 rk
|
|
4 4 9 19:24:11 9 yk
|
|
4 6 9 00:00:00 9 ct
|
|
4 6 9 00:00:00 9 dt
|
|
4 6 9 00:00:00 9 et
|
|
4 6 9 00:00:00 9 ft
|
|
4 6 9 00:00:00 9 ht
|
|
4 6 9 00:00:00 9 jt
|
|
4 6 9 00:00:00 9 mt
|
|
4 6 9 00:00:00 9 rt
|
|
4 6 9 00:00:00 9 yt
|
|
4 17 9 19:56:05 9 cm
|
|
4 17 9 19:56:05 9 dm
|
|
4 17 9 19:56:05 9 em
|
|
4 17 9 19:56:05 9 fm
|
|
4 17 9 19:56:05 9 hm
|
|
4 17 9 19:56:05 9 jm
|
|
4 17 9 19:56:05 9 mm
|
|
4 17 9 19:56:05 9 rm
|
|
4 17 9 19:56:05 9 ym
|
|
4 10 9 15:19:25 53 co
|
|
4 10 9 15:19:25 53 do
|
|
4 10 9 15:19:25 53 eo
|
|
4 10 9 15:19:25 53 fo
|
|
4 10 9 15:19:25 53 ho
|
|
4 10 9 15:19:25 53 jo
|
|
4 10 9 15:19:25 53 mo
|
|
4 10 9 15:19:25 53 ro
|
|
4 10 9 15:19:25 53 yo
|
|
4 13 9 NULL 166 ce
|
|
4 13 9 NULL 166 de
|
|
4 13 9 NULL 166 ee
|
|
4 13 9 NULL 166 fe
|
|
4 13 9 NULL 166 he
|
|
4 13 9 NULL 166 je
|
|
4 13 9 NULL 166 me
|
|
4 13 9 NULL 166 re
|
|
4 13 9 NULL 166 ye
|
|
set @@optimizer_switch='subquery_cache=on';
|
|
/* cache is on */ SELECT (
|
|
SELECT 4
|
|
FROM DUAL ) AS field1 , SUM( DISTINCT table1 . `pk` ) AS field2 , (
|
|
SELECT MAX( SUBQUERY2_t1 . `col_int_nokey` ) AS SUBQUERY2_field1
|
|
FROM ( t1 AS SUBQUERY2_t1 INNER JOIN t1 AS SUBQUERY2_t2 ON (SUBQUERY2_t2 . `col_int_key` = SUBQUERY2_t1 . `pk` ) )
|
|
WHERE SUBQUERY2_t2 . `col_varchar_nokey` <= table1 . `col_varchar_key` OR SUBQUERY2_t1 . `col_int_nokey` < table1 . `pk` ) AS field3 , table1 . `col_time_key` AS field4 , table1 . `col_int_key` AS field5 , CONCAT ( table2 . `col_varchar_nokey` , table1 . `col_varchar_key` ) AS field6
|
|
FROM ( t1 AS table1 INNER JOIN ( ( t1 AS table2 LEFT JOIN t2 AS table3 ON (table3 . `col_varchar_key` = table2 . `col_varchar_key` ) ) ) ON (table3 . `col_varchar_key` = table2 . `col_varchar_nokey` ) )
|
|
WHERE ( table2 . `col_varchar_nokey` NOT IN (
|
|
SELECT 'd' UNION
|
|
SELECT 'u' ) ) OR table3 . `col_varchar_nokey` <= table1 . `col_varchar_key`
|
|
GROUP BY field1, field3, field4, field5, field6
|
|
ORDER BY table1 . `col_int_key` , field1, field2, field3, field4, field5, field6
|
|
;
|
|
field1 field2 field3 field4 field5 field6
|
|
4 5 9 15:59:13 NULL cr
|
|
4 5 9 15:59:13 NULL dr
|
|
4 5 9 15:59:13 NULL er
|
|
4 5 9 15:59:13 NULL fr
|
|
4 5 9 15:59:13 NULL hr
|
|
4 5 9 15:59:13 NULL jr
|
|
4 5 9 15:59:13 NULL mr
|
|
4 5 9 15:59:13 NULL rr
|
|
4 5 9 15:59:13 NULL yr
|
|
4 11 9 19:03:19 0 NULL
|
|
4 15 9 13:12:11 0 ct
|
|
4 15 9 13:12:11 0 dt
|
|
4 15 9 13:12:11 0 et
|
|
4 15 9 13:12:11 0 ft
|
|
4 15 9 13:12:11 0 ht
|
|
4 15 9 13:12:11 0 jt
|
|
4 15 9 13:12:11 0 mt
|
|
4 15 9 13:12:11 0 rt
|
|
4 15 9 13:12:11 0 yt
|
|
4 16 9 04:56:48 1 cc
|
|
4 16 9 04:56:48 1 ec
|
|
4 16 9 04:56:48 1 fc
|
|
4 16 9 04:56:48 1 hc
|
|
4 16 9 04:56:48 1 jc
|
|
4 16 9 04:56:48 1 mc
|
|
4 16 9 04:56:48 1 rc
|
|
4 16 9 04:56:48 1 yc
|
|
4 1 9 11:28:45 2 cw
|
|
4 1 9 11:28:45 2 dw
|
|
4 1 9 11:28:45 2 ew
|
|
4 1 9 11:28:45 2 fw
|
|
4 1 9 11:28:45 2 hw
|
|
4 1 9 11:28:45 2 jw
|
|
4 1 9 11:28:45 2 mw
|
|
4 1 9 11:28:45 2 rw
|
|
4 1 9 11:28:45 2 yw
|
|
4 20 9 18:38:59 2 cd
|
|
4 20 9 18:38:59 2 dd
|
|
4 20 9 18:38:59 2 ed
|
|
4 20 9 18:38:59 2 fd
|
|
4 20 9 18:38:59 2 hd
|
|
4 20 9 18:38:59 2 jd
|
|
4 20 9 18:38:59 2 md
|
|
4 20 9 18:38:59 2 rd
|
|
4 20 9 18:38:59 2 yd
|
|
4 3 9 13:47:24 3 cm
|
|
4 3 9 13:47:24 3 dm
|
|
4 3 9 13:47:24 3 em
|
|
4 3 9 13:47:24 3 fm
|
|
4 3 9 13:47:24 3 hm
|
|
4 3 9 13:47:24 3 jm
|
|
4 3 9 13:47:24 3 mm
|
|
4 3 9 13:47:24 3 rm
|
|
4 3 9 13:47:24 3 ym
|
|
4 7 9 15:15:04 3 cj
|
|
4 7 9 15:15:04 3 dj
|
|
4 7 9 15:15:04 3 ej
|
|
4 7 9 15:15:04 3 fj
|
|
4 7 9 15:15:04 3 hj
|
|
4 7 9 15:15:04 3 jj
|
|
4 7 9 15:15:04 3 mj
|
|
4 7 9 15:15:04 3 rj
|
|
4 7 9 15:15:04 3 yj
|
|
4 14 9 00:00:00 3 cn
|
|
4 14 9 00:00:00 3 dn
|
|
4 14 9 00:00:00 3 en
|
|
4 14 9 00:00:00 3 fn
|
|
4 14 9 00:00:00 3 hn
|
|
4 14 9 00:00:00 3 jn
|
|
4 14 9 00:00:00 3 mn
|
|
4 14 9 00:00:00 3 rn
|
|
4 14 9 00:00:00 3 yn
|
|
4 12 9 00:39:46 5 ck
|
|
4 12 9 00:39:46 5 dk
|
|
4 12 9 00:39:46 5 ek
|
|
4 12 9 00:39:46 5 fk
|
|
4 12 9 00:39:46 5 hk
|
|
4 12 9 00:39:46 5 jk
|
|
4 12 9 00:39:46 5 mk
|
|
4 12 9 00:39:46 5 rk
|
|
4 12 9 00:39:46 5 yk
|
|
4 18 9 19:35:19 5 cy
|
|
4 18 9 19:35:19 5 dy
|
|
4 18 9 19:35:19 5 ey
|
|
4 18 9 19:35:19 5 fy
|
|
4 18 9 19:35:19 5 hy
|
|
4 18 9 19:35:19 5 jy
|
|
4 18 9 19:35:19 5 my
|
|
4 18 9 19:35:19 5 ry
|
|
4 18 9 19:35:19 5 yy
|
|
4 19 9 05:03:03 6 cf
|
|
4 19 9 05:03:03 6 df
|
|
4 19 9 05:03:03 6 ef
|
|
4 19 9 05:03:03 6 ff
|
|
4 19 9 05:03:03 6 hf
|
|
4 19 9 05:03:03 6 jf
|
|
4 19 9 05:03:03 6 mf
|
|
4 19 9 05:03:03 6 rf
|
|
4 19 9 05:03:03 6 yf
|
|
4 8 9 11:32:06 8 cu
|
|
4 8 9 11:32:06 8 du
|
|
4 8 9 11:32:06 8 eu
|
|
4 8 9 11:32:06 8 fu
|
|
4 8 9 11:32:06 8 hu
|
|
4 8 9 11:32:06 8 ju
|
|
4 8 9 11:32:06 8 mu
|
|
4 8 9 11:32:06 8 ru
|
|
4 8 9 11:32:06 8 yu
|
|
4 9 8 18:32:33 8 ch
|
|
4 9 8 18:32:33 8 dh
|
|
4 9 8 18:32:33 8 eh
|
|
4 9 8 18:32:33 8 fh
|
|
4 9 8 18:32:33 8 hh
|
|
4 9 8 18:32:33 8 jh
|
|
4 9 8 18:32:33 8 mh
|
|
4 9 8 18:32:33 8 rh
|
|
4 9 8 18:32:33 8 yh
|
|
4 2 9 20:25:14 9 cm
|
|
4 2 9 20:25:14 9 dm
|
|
4 2 9 20:25:14 9 em
|
|
4 2 9 20:25:14 9 fm
|
|
4 2 9 20:25:14 9 hm
|
|
4 2 9 20:25:14 9 jm
|
|
4 2 9 20:25:14 9 mm
|
|
4 2 9 20:25:14 9 rm
|
|
4 2 9 20:25:14 9 ym
|
|
4 4 9 19:24:11 9 ck
|
|
4 4 9 19:24:11 9 dk
|
|
4 4 9 19:24:11 9 ek
|
|
4 4 9 19:24:11 9 fk
|
|
4 4 9 19:24:11 9 hk
|
|
4 4 9 19:24:11 9 jk
|
|
4 4 9 19:24:11 9 mk
|
|
4 4 9 19:24:11 9 rk
|
|
4 4 9 19:24:11 9 yk
|
|
4 6 9 00:00:00 9 ct
|
|
4 6 9 00:00:00 9 dt
|
|
4 6 9 00:00:00 9 et
|
|
4 6 9 00:00:00 9 ft
|
|
4 6 9 00:00:00 9 ht
|
|
4 6 9 00:00:00 9 jt
|
|
4 6 9 00:00:00 9 mt
|
|
4 6 9 00:00:00 9 rt
|
|
4 6 9 00:00:00 9 yt
|
|
4 17 9 19:56:05 9 cm
|
|
4 17 9 19:56:05 9 dm
|
|
4 17 9 19:56:05 9 em
|
|
4 17 9 19:56:05 9 fm
|
|
4 17 9 19:56:05 9 hm
|
|
4 17 9 19:56:05 9 jm
|
|
4 17 9 19:56:05 9 mm
|
|
4 17 9 19:56:05 9 rm
|
|
4 17 9 19:56:05 9 ym
|
|
4 10 9 15:19:25 53 co
|
|
4 10 9 15:19:25 53 do
|
|
4 10 9 15:19:25 53 eo
|
|
4 10 9 15:19:25 53 fo
|
|
4 10 9 15:19:25 53 ho
|
|
4 10 9 15:19:25 53 jo
|
|
4 10 9 15:19:25 53 mo
|
|
4 10 9 15:19:25 53 ro
|
|
4 10 9 15:19:25 53 yo
|
|
4 13 9 NULL 166 ce
|
|
4 13 9 NULL 166 de
|
|
4 13 9 NULL 166 ee
|
|
4 13 9 NULL 166 fe
|
|
4 13 9 NULL 166 he
|
|
4 13 9 NULL 166 je
|
|
4 13 9 NULL 166 me
|
|
4 13 9 NULL 166 re
|
|
4 13 9 NULL 166 ye
|
|
drop table t1,t2;
|
|
set @@optimizer_switch= default;
|
|
#launchpad BUG#609045
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,NULL,2,NULL,NULL,'11:28:45','11:28:45','2004-10-11 18:13:16','2004-10-11 18:13:16','w','w');
|
|
INSERT INTO `t1` VALUES (2,7,9,'2001-09-19','2001-09-19','20:25:14','20:25:14',NULL,NULL,'m','m');
|
|
INSERT INTO `t1` VALUES (3,9,3,'2004-09-12','2004-09-12','13:47:24','13:47:24','1900-01-01 00:00:00','1900-01-01 00:00:00','m','m');
|
|
INSERT INTO `t1` VALUES (4,7,9,NULL,NULL,'19:24:11','19:24:11','2009-07-25 00:00:00','2009-07-25 00:00:00','k','k');
|
|
INSERT INTO `t1` VALUES (5,4,NULL,'2002-07-19','2002-07-19','15:59:13','15:59:13',NULL,NULL,'r','r');
|
|
INSERT INTO `t1` VALUES (6,2,9,'2002-12-16','2002-12-16','00:00:00','00:00:00','2008-07-27 00:00:00','2008-07-27 00:00:00','t','t');
|
|
INSERT INTO `t1` VALUES (7,6,3,'2006-02-08','2006-02-08','15:15:04','15:15:04','2002-11-13 16:37:31','2002-11-13 16:37:31','j','j');
|
|
INSERT INTO `t1` VALUES (8,8,8,'2006-08-28','2006-08-28','11:32:06','11:32:06','1900-01-01 00:00:00','1900-01-01 00:00:00','u','u');
|
|
INSERT INTO `t1` VALUES (9,NULL,8,'2001-04-14','2001-04-14','18:32:33','18:32:33','2003-12-10 00:00:00','2003-12-10 00:00:00','h','h');
|
|
INSERT INTO `t1` VALUES (10,5,53,'2000-01-05','2000-01-05','15:19:25','15:19:25','2001-12-21 22:38:22','2001-12-21 22:38:22','o','o');
|
|
INSERT INTO `t1` VALUES (11,NULL,0,'2003-12-06','2003-12-06','19:03:19','19:03:19','2008-12-13 23:16:44','2008-12-13 23:16:44',NULL,NULL);
|
|
INSERT INTO `t1` VALUES (12,6,5,'1900-01-01','1900-01-01','00:39:46','00:39:46','2005-08-15 12:39:41','2005-08-15 12:39:41','k','k');
|
|
INSERT INTO `t1` VALUES (13,188,166,'2002-11-27','2002-11-27',NULL,NULL,NULL,NULL,'e','e');
|
|
INSERT INTO `t1` VALUES (14,2,3,NULL,NULL,'00:00:00','00:00:00','2006-09-11 12:06:14','2006-09-11 12:06:14','n','n');
|
|
INSERT INTO `t1` VALUES (15,1,0,'2003-05-27','2003-05-27','13:12:11','13:12:11','2007-12-15 12:39:34','2007-12-15 12:39:34','t','t');
|
|
INSERT INTO `t1` VALUES (16,1,1,'2005-05-03','2005-05-03','04:56:48','04:56:48','2005-08-09 00:00:00','2005-08-09 00:00:00','c','c');
|
|
INSERT INTO `t1` VALUES (17,0,9,'2001-04-18','2001-04-18','19:56:05','19:56:05','2001-09-02 22:50:02','2001-09-02 22:50:02','m','m');
|
|
INSERT INTO `t1` VALUES (18,9,5,'2005-12-27','2005-12-27','19:35:19','19:35:19','2005-12-16 22:58:11','2005-12-16 22:58:11','y','y');
|
|
INSERT INTO `t1` VALUES (19,NULL,6,'2004-08-20','2004-08-20','05:03:03','05:03:03','2007-04-19 00:19:53','2007-04-19 00:19:53','f','f');
|
|
INSERT INTO `t1` VALUES (20,4,2,'1900-01-01','1900-01-01','18:38:59','18:38:59','1900-01-01 00:00:00','1900-01-01 00:00:00','d','d');
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
);
|
|
INSERT INTO `t2` VALUES (10,7,8,NULL,NULL,'01:27:35','01:27:35','2002-02-26 06:14:37','2002-02-26 06:14:37','v','v');
|
|
INSERT INTO `t2` VALUES (11,1,9,'2006-06-14','2006-06-14','19:48:31','19:48:31','1900-01-01 00:00:00','1900-01-01 00:00:00','r','r');
|
|
INSERT INTO `t2` VALUES (12,5,9,'2002-09-12','2002-09-12','00:00:00','00:00:00','2006-12-03 09:37:26','2006-12-03 09:37:26','a','a');
|
|
INSERT INTO `t2` VALUES (13,3,186,'2005-02-15','2005-02-15','19:53:05','19:53:05','2008-05-26 12:27:10','2008-05-26 12:27:10','m','m');
|
|
INSERT INTO `t2` VALUES (14,6,NULL,NULL,NULL,'19:18:56','19:18:56','2004-12-14 16:37:30','2004-12-14 16:37:30','y','y');
|
|
INSERT INTO `t2` VALUES (15,92,2,'2008-11-04','2008-11-04','10:55:12','10:55:12','2003-02-11 21:19:41','2003-02-11 21:19:41','j','j');
|
|
INSERT INTO `t2` VALUES (16,7,3,'2004-09-04','2004-09-04','00:25:00','00:25:00','2009-10-18 02:27:49','2009-10-18 02:27:49','d','d');
|
|
INSERT INTO `t2` VALUES (17,NULL,0,'2006-06-05','2006-06-05','12:35:47','12:35:47','2000-09-26 07:45:57','2000-09-26 07:45:57','z','z');
|
|
INSERT INTO `t2` VALUES (18,3,133,'1900-01-01','1900-01-01','19:53:03','19:53:03',NULL,NULL,'e','e');
|
|
INSERT INTO `t2` VALUES (19,5,1,'1900-01-01','1900-01-01','17:53:30','17:53:30','2005-11-10 12:40:29','2005-11-10 12:40:29','h','h');
|
|
INSERT INTO `t2` VALUES (20,1,8,'1900-01-01','1900-01-01','11:35:49','11:35:49','2009-04-25 00:00:00','2009-04-25 00:00:00','b','b');
|
|
INSERT INTO `t2` VALUES (21,2,5,'2005-01-13','2005-01-13',NULL,NULL,'2002-11-27 00:00:00','2002-11-27 00:00:00','s','s');
|
|
INSERT INTO `t2` VALUES (22,NULL,5,'2006-05-21','2006-05-21','06:01:40','06:01:40','2004-01-26 20:32:32','2004-01-26 20:32:32','e','e');
|
|
INSERT INTO `t2` VALUES (23,1,8,'2003-09-08','2003-09-08','05:45:11','05:45:11','2007-10-26 11:41:40','2007-10-26 11:41:40','j','j');
|
|
INSERT INTO `t2` VALUES (24,0,6,'2006-12-23','2006-12-23','00:00:00','00:00:00','2005-10-07 00:00:00','2005-10-07 00:00:00','e','e');
|
|
INSERT INTO `t2` VALUES (25,210,51,'2006-10-15','2006-10-15','00:00:00','00:00:00','2000-07-15 05:00:34','2000-07-15 05:00:34','f','f');
|
|
INSERT INTO `t2` VALUES (26,8,4,'2005-04-06','2005-04-06','06:11:01','06:11:01','2000-04-03 16:33:32','2000-04-03 16:33:32','v','v');
|
|
INSERT INTO `t2` VALUES (27,7,7,'2008-04-07','2008-04-07','13:02:46','13:02:46',NULL,NULL,'x','x');
|
|
INSERT INTO `t2` VALUES (28,5,6,'2006-10-10','2006-10-10','21:44:25','21:44:25','2001-04-25 01:26:12','2001-04-25 01:26:12','m','m');
|
|
INSERT INTO `t2` VALUES (29,NULL,4,'1900-01-01','1900-01-01','22:43:58','22:43:58','2000-12-27 00:00:00','2000-12-27 00:00:00','c','c');
|
|
CREATE TABLE `t3` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
);
|
|
INSERT INTO `t3` VALUES (1,1,7,'1900-01-01','1900-01-01','01:13:38','01:13:38','2005-02-05 00:00:00','2005-02-05 00:00:00','f','f');
|
|
CREATE TABLE `t4` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
);
|
|
INSERT INTO `t4` VALUES (1,6,NULL,'2003-05-12','2003-05-12',NULL,NULL,'2000-09-12 00:00:00','2000-09-12 00:00:00','r','r');
|
|
INSERT INTO `t4` VALUES (2,8,0,'2003-01-07','2003-01-07','14:34:45','14:34:45','2004-08-10 09:09:31','2004-08-10 09:09:31','c','c');
|
|
INSERT INTO `t4` VALUES (3,6,0,NULL,NULL,'11:49:48','11:49:48','2005-03-21 04:31:40','2005-03-21 04:31:40','o','o');
|
|
INSERT INTO `t4` VALUES (4,6,7,'2005-03-12','2005-03-12','18:12:55','18:12:55','2002-10-25 23:50:35','2002-10-25 23:50:35','c','c');
|
|
INSERT INTO `t4` VALUES (5,3,8,'2000-08-02','2000-08-02','18:30:05','18:30:05','2001-04-01 21:14:04','2001-04-01 21:14:04','d','d');
|
|
INSERT INTO `t4` VALUES (6,9,4,'1900-01-01','1900-01-01','14:19:30','14:19:30','2005-03-12 06:02:34','2005-03-12 06:02:34','v','v');
|
|
INSERT INTO `t4` VALUES (7,2,6,'2006-07-06','2006-07-06','05:20:04','05:20:04','2001-05-06 14:49:12','2001-05-06 14:49:12','m','m');
|
|
INSERT INTO `t4` VALUES (8,1,5,'2006-12-24','2006-12-24','20:29:31','20:29:31','2004-04-25 00:00:00','2004-04-25 00:00:00','j','j');
|
|
INSERT INTO `t4` VALUES (9,8,NULL,'2004-11-16','2004-11-16','07:08:09','07:08:09','2001-03-22 18:38:43','2001-03-22 18:38:43','f','f');
|
|
INSERT INTO `t4` VALUES (10,0,NULL,'2002-09-09','2002-09-09','14:49:14','14:49:14','2006-04-25 21:03:02','2006-04-25 21:03:02','n','n');
|
|
INSERT INTO `t4` VALUES (11,9,8,NULL,NULL,'00:00:00','00:00:00','2009-09-07 18:40:43','2009-09-07 18:40:43','z','z');
|
|
INSERT INTO `t4` VALUES (12,8,8,'2008-06-24','2008-06-24','09:58:06','09:58:06','2004-03-23 00:00:00','2004-03-23 00:00:00','h','h');
|
|
INSERT INTO `t4` VALUES (13,NULL,8,'2001-04-21','2001-04-21',NULL,NULL,'2009-04-15 00:08:29','2009-04-15 00:08:29','q','q');
|
|
INSERT INTO `t4` VALUES (14,0,1,'2003-11-22','2003-11-22','18:24:16','18:24:16','2000-04-21 00:00:00','2000-04-21 00:00:00','w','w');
|
|
INSERT INTO `t4` VALUES (15,5,1,'2004-09-12','2004-09-12','17:39:57','17:39:57','2000-02-17 19:41:23','2000-02-17 19:41:23','z','z');
|
|
INSERT INTO `t4` VALUES (16,1,5,'2006-06-20','2006-06-20','08:23:21','08:23:21','2003-09-20 07:38:14','2003-09-20 07:38:14','j','j');
|
|
INSERT INTO `t4` VALUES (17,1,2,NULL,NULL,NULL,NULL,'2000-11-28 20:42:12','2000-11-28 20:42:12','a','a');
|
|
INSERT INTO `t4` VALUES (18,6,7,'2001-11-25','2001-11-25','21:50:46','21:50:46','2005-06-12 11:13:17','2005-06-12 11:13:17','m','m');
|
|
INSERT INTO `t4` VALUES (19,6,6,'2004-10-26','2004-10-26','12:33:17','12:33:17','1900-01-01 00:00:00','1900-01-01 00:00:00','n','n');
|
|
INSERT INTO `t4` VALUES (20,1,4,'2005-01-19','2005-01-19','03:06:43','03:06:43','2006-02-09 20:41:06','2006-02-09 20:41:06','e','e');
|
|
INSERT INTO `t4` VALUES (21,8,7,'2008-07-06','2008-07-06','03:46:14','03:46:14','2004-05-22 01:05:57','2004-05-22 01:05:57','u','u');
|
|
INSERT INTO `t4` VALUES (22,1,0,'1900-01-01','1900-01-01','20:34:52','20:34:52','2004-03-04 13:46:31','2004-03-04 13:46:31','s','s');
|
|
INSERT INTO `t4` VALUES (23,0,9,'1900-01-01','1900-01-01',NULL,NULL,'1900-01-01 00:00:00','1900-01-01 00:00:00','u','u');
|
|
INSERT INTO `t4` VALUES (24,4,3,'2004-06-08','2004-06-08','10:41:20','10:41:20','2004-10-20 07:20:19','2004-10-20 07:20:19','r','r');
|
|
INSERT INTO `t4` VALUES (25,9,5,'2007-02-20','2007-02-20','08:43:11','08:43:11','2006-04-17 00:00:00','2006-04-17 00:00:00','g','g');
|
|
INSERT INTO `t4` VALUES (26,8,1,'2008-06-18','2008-06-18',NULL,NULL,'2000-10-27 00:00:00','2000-10-27 00:00:00','o','o');
|
|
INSERT INTO `t4` VALUES (27,5,1,'2008-05-15','2008-05-15','10:17:51','10:17:51','2007-04-14 08:54:06','2007-04-14 08:54:06','w','w');
|
|
INSERT INTO `t4` VALUES (28,9,5,'2005-10-06','2005-10-06','06:34:09','06:34:09','2008-04-12 17:03:52','2008-04-12 17:03:52','b','b');
|
|
INSERT INTO `t4` VALUES (29,5,9,NULL,NULL,'21:22:47','21:22:47','2007-02-19 17:37:09','2007-02-19 17:37:09',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (30,NULL,2,'2006-10-12','2006-10-12','04:02:32','04:02:32','1900-01-01 00:00:00','1900-01-01 00:00:00','y','y');
|
|
INSERT INTO `t4` VALUES (31,NULL,5,'2005-01-24','2005-01-24','02:33:14','02:33:14','2001-10-10 08:32:27','2001-10-10 08:32:27','y','y');
|
|
INSERT INTO `t4` VALUES (32,105,248,'2009-06-27','2009-06-27','16:32:56','16:32:56',NULL,NULL,'u','u');
|
|
INSERT INTO `t4` VALUES (33,0,0,NULL,NULL,'21:32:42','21:32:42','2001-12-16 05:31:53','2001-12-16 05:31:53','p','p');
|
|
INSERT INTO `t4` VALUES (34,3,8,NULL,NULL,'23:04:47','23:04:47','2003-07-19 18:03:28','2003-07-19 18:03:28','s','s');
|
|
INSERT INTO `t4` VALUES (35,1,1,'1900-01-01','1900-01-01','22:05:43','22:05:43','2001-03-27 11:44:10','2001-03-27 11:44:10','e','e');
|
|
INSERT INTO `t4` VALUES (36,75,255,'2005-12-22','2005-12-22','02:05:45','02:05:45','2008-06-15 02:13:00','2008-06-15 02:13:00','d','d');
|
|
INSERT INTO `t4` VALUES (37,9,9,'2005-05-03','2005-05-03','00:00:00','00:00:00','2009-03-14 21:29:56','2009-03-14 21:29:56','d','d');
|
|
INSERT INTO `t4` VALUES (38,7,9,'2003-05-27','2003-05-27','18:09:07','18:09:07','2005-01-02 00:00:00','2005-01-02 00:00:00','c','c');
|
|
INSERT INTO `t4` VALUES (39,NULL,3,'2006-05-25','2006-05-25','10:54:06','10:54:06','2007-07-16 04:44:07','2007-07-16 04:44:07','b','b');
|
|
INSERT INTO `t4` VALUES (40,NULL,9,NULL,NULL,'23:15:50','23:15:50','2003-08-26 21:38:26','2003-08-26 21:38:26','t','t');
|
|
INSERT INTO `t4` VALUES (41,4,6,'2009-01-04','2009-01-04','10:17:40','10:17:40','2004-04-19 04:18:47','2004-04-19 04:18:47',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (42,0,4,'2009-02-14','2009-02-14','03:37:09','03:37:09','2000-01-06 20:32:48','2000-01-06 20:32:48','y','y');
|
|
INSERT INTO `t4` VALUES (43,204,60,'2003-01-16','2003-01-16','22:26:06','22:26:06','2006-06-23 13:27:17','2006-06-23 13:27:17','c','c');
|
|
INSERT INTO `t4` VALUES (44,0,7,'1900-01-01','1900-01-01','17:10:38','17:10:38','2007-11-27 00:00:00','2007-11-27 00:00:00','d','d');
|
|
INSERT INTO `t4` VALUES (45,9,1,'2007-06-26','2007-06-26','00:00:00','00:00:00','2002-04-03 12:06:51','2002-04-03 12:06:51','x','x');
|
|
INSERT INTO `t4` VALUES (46,8,6,'2004-03-27','2004-03-27','17:08:49','17:08:49','2008-12-28 09:47:42','2008-12-28 09:47:42','p','p');
|
|
INSERT INTO `t4` VALUES (47,7,4,NULL,NULL,'19:04:40','19:04:40','2002-04-04 10:07:54','2002-04-04 10:07:54','e','e');
|
|
INSERT INTO `t4` VALUES (48,8,NULL,'2005-06-06','2005-06-06','20:53:28','20:53:28','2003-04-26 02:55:13','2003-04-26 02:55:13','g','g');
|
|
INSERT INTO `t4` VALUES (49,NULL,8,'2003-03-02','2003-03-02','11:46:03','11:46:03',NULL,NULL,'x','x');
|
|
INSERT INTO `t4` VALUES (50,6,0,'2004-05-13','2004-05-13',NULL,NULL,'2009-02-19 03:17:06','2009-02-19 03:17:06','s','s');
|
|
INSERT INTO `t4` VALUES (51,5,8,'2005-09-13','2005-09-13','10:58:07','10:58:07','1900-01-01 00:00:00','1900-01-01 00:00:00','e','e');
|
|
INSERT INTO `t4` VALUES (52,2,151,'2005-10-03','2005-10-03','00:00:00','00:00:00','2000-11-10 08:20:01','2000-11-10 08:20:01','l','l');
|
|
INSERT INTO `t4` VALUES (53,3,7,'2005-10-14','2005-10-14','09:43:15','09:43:15','2008-02-10 00:00:00','2008-02-10 00:00:00','p','p');
|
|
INSERT INTO `t4` VALUES (54,7,6,NULL,NULL,'21:40:32','21:40:32','1900-01-01 00:00:00','1900-01-01 00:00:00','h','h');
|
|
INSERT INTO `t4` VALUES (55,NULL,NULL,'2005-09-16','2005-09-16','00:17:44','00:17:44',NULL,NULL,'m','m');
|
|
INSERT INTO `t4` VALUES (56,145,23,'2005-03-10','2005-03-10','16:47:26','16:47:26','2001-02-05 02:01:50','2001-02-05 02:01:50','n','n');
|
|
INSERT INTO `t4` VALUES (57,0,2,'2000-06-19','2000-06-19','00:00:00','00:00:00','2000-10-28 08:44:25','2000-10-28 08:44:25','v','v');
|
|
INSERT INTO `t4` VALUES (58,1,4,'2002-11-03','2002-11-03','05:25:59','05:25:59','2005-03-20 10:53:59','2005-03-20 10:53:59','b','b');
|
|
INSERT INTO `t4` VALUES (59,7,NULL,'2009-01-05','2009-01-05','00:00:00','00:00:00','2001-06-02 13:54:13','2001-06-02 13:54:13','x','x');
|
|
INSERT INTO `t4` VALUES (60,3,NULL,'2003-05-22','2003-05-22','20:33:04','20:33:04','1900-01-01 00:00:00','1900-01-01 00:00:00','r','r');
|
|
INSERT INTO `t4` VALUES (61,NULL,77,'2005-07-02','2005-07-02','00:46:12','00:46:12','2009-07-16 13:05:43','2009-07-16 13:05:43','t','t');
|
|
INSERT INTO `t4` VALUES (62,2,NULL,'1900-01-01','1900-01-01','00:00:00','00:00:00','2009-03-26 23:16:20','2009-03-26 23:16:20','w','w');
|
|
INSERT INTO `t4` VALUES (63,2,NULL,'2006-06-21','2006-06-21','02:13:59','02:13:59','2003-02-06 18:12:15','2003-02-06 18:12:15','w','w');
|
|
INSERT INTO `t4` VALUES (64,2,7,NULL,NULL,'02:54:47','02:54:47','2006-06-05 03:22:51','2006-06-05 03:22:51','k','k');
|
|
INSERT INTO `t4` VALUES (65,8,1,'2005-12-16','2005-12-16','18:13:59','18:13:59','2002-02-10 05:47:27','2002-02-10 05:47:27','a','a');
|
|
INSERT INTO `t4` VALUES (66,6,9,'2004-11-05','2004-11-05','13:53:08','13:53:08','2001-08-01 08:50:52','2001-08-01 08:50:52','t','t');
|
|
INSERT INTO `t4` VALUES (67,1,6,NULL,NULL,'22:21:30','22:21:30','1900-01-01 00:00:00','1900-01-01 00:00:00','z','z');
|
|
INSERT INTO `t4` VALUES (68,NULL,2,'2004-09-14','2004-09-14','11:41:50','11:41:50',NULL,NULL,'e','e');
|
|
INSERT INTO `t4` VALUES (69,1,3,'2002-04-06','2002-04-06','15:20:02','15:20:02','1900-01-01 00:00:00','1900-01-01 00:00:00','q','q');
|
|
INSERT INTO `t4` VALUES (70,0,0,NULL,NULL,NULL,NULL,'2000-09-23 00:00:00','2000-09-23 00:00:00','e','e');
|
|
INSERT INTO `t4` VALUES (71,4,NULL,'2002-11-13','2002-11-13',NULL,NULL,'2007-07-09 08:32:49','2007-07-09 08:32:49','v','v');
|
|
INSERT INTO `t4` VALUES (72,1,6,'2006-05-27','2006-05-27','07:51:52','07:51:52','2000-01-05 00:00:00','2000-01-05 00:00:00','d','d');
|
|
INSERT INTO `t4` VALUES (73,1,3,'2000-12-22','2000-12-22','00:00:00','00:00:00','2000-09-24 00:00:00','2000-09-24 00:00:00','u','u');
|
|
INSERT INTO `t4` VALUES (74,27,195,'2004-02-21','2004-02-21',NULL,NULL,'2005-05-06 00:00:00','2005-05-06 00:00:00','o','o');
|
|
INSERT INTO `t4` VALUES (75,4,5,'2009-05-15','2009-05-15',NULL,NULL,'2000-03-11 00:00:00','2000-03-11 00:00:00','b','b');
|
|
INSERT INTO `t4` VALUES (76,6,2,'2008-12-12','2008-12-12','12:31:05','12:31:05','2001-09-02 16:17:35','2001-09-02 16:17:35','c','c');
|
|
INSERT INTO `t4` VALUES (77,2,7,'2000-04-15','2000-04-15','00:00:00','00:00:00','2006-04-25 05:43:44','2006-04-25 05:43:44','q','q');
|
|
INSERT INTO `t4` VALUES (78,248,25,NULL,NULL,'01:16:45','01:16:45','2009-10-25 22:04:02','2009-10-25 22:04:02',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (79,NULL,NULL,'2001-10-18','2001-10-18','20:38:54','20:38:54','2004-08-06 00:00:00','2004-08-06 00:00:00','h','h');
|
|
INSERT INTO `t4` VALUES (80,9,0,'2008-05-25','2008-05-25','00:30:15','00:30:15','2001-11-27 05:07:57','2001-11-27 05:07:57','d','d');
|
|
INSERT INTO `t4` VALUES (81,75,98,'2004-12-02','2004-12-02','23:46:36','23:46:36','2009-06-28 03:18:39','2009-06-28 03:18:39','w','w');
|
|
INSERT INTO `t4` VALUES (82,2,6,'2002-02-15','2002-02-15','19:03:13','19:03:13','2000-03-12 00:00:00','2000-03-12 00:00:00','m','m');
|
|
INSERT INTO `t4` VALUES (83,9,5,'2002-03-03','2002-03-03','10:54:27','10:54:27',NULL,NULL,'i','i');
|
|
INSERT INTO `t4` VALUES (84,4,0,NULL,NULL,'00:25:47','00:25:47','2007-10-20 00:00:00','2007-10-20 00:00:00','w','w');
|
|
INSERT INTO `t4` VALUES (85,0,3,'2003-01-26','2003-01-26','08:44:27','08:44:27','2009-09-27 00:00:00','2009-09-27 00:00:00','f','f');
|
|
INSERT INTO `t4` VALUES (86,0,1,'2001-12-19','2001-12-19','08:15:38','08:15:38','2002-07-16 00:00:00','2002-07-16 00:00:00','k','k');
|
|
INSERT INTO `t4` VALUES (87,1,1,'2001-08-07','2001-08-07','19:56:21','19:56:21','2005-02-20 00:00:00','2005-02-20 00:00:00','v','v');
|
|
INSERT INTO `t4` VALUES (88,119,147,'2005-02-16','2005-02-16','00:00:00','00:00:00',NULL,NULL,'c','c');
|
|
INSERT INTO `t4` VALUES (89,1,3,'2006-06-10','2006-06-10','20:50:52','20:50:52','2001-07-16 00:00:00','2001-07-16 00:00:00','y','y');
|
|
INSERT INTO `t4` VALUES (90,7,3,NULL,NULL,'03:54:39','03:54:39','2009-05-20 21:04:12','2009-05-20 21:04:12','h','h');
|
|
INSERT INTO `t4` VALUES (91,2,NULL,'2005-04-06','2005-04-06','23:58:17','23:58:17','2002-03-13 10:55:40','2002-03-13 10:55:40',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (92,7,2,'2003-04-27','2003-04-27','12:54:58','12:54:58','2005-07-12 00:00:00','2005-07-12 00:00:00','t','t');
|
|
INSERT INTO `t4` VALUES (93,2,1,'2005-10-13','2005-10-13','04:02:43','04:02:43','2006-07-22 09:46:34','2006-07-22 09:46:34','l','l');
|
|
INSERT INTO `t4` VALUES (94,6,8,'2003-10-02','2003-10-02','11:31:12','11:31:12','2001-09-01 00:00:00','2001-09-01 00:00:00','a','a');
|
|
INSERT INTO `t4` VALUES (95,4,8,'2005-09-09','2005-09-09','20:20:04','20:20:04','2002-05-27 18:38:45','2002-05-27 18:38:45','r','r');
|
|
INSERT INTO `t4` VALUES (96,5,8,NULL,NULL,'00:22:24','00:22:24',NULL,NULL,'s','s');
|
|
INSERT INTO `t4` VALUES (97,7,0,'2006-02-15','2006-02-15','10:09:31','10:09:31',NULL,NULL,'z','z');
|
|
INSERT INTO `t4` VALUES (98,1,1,'1900-01-01','1900-01-01',NULL,NULL,'2009-08-08 22:38:53','2009-08-08 22:38:53','j','j');
|
|
INSERT INTO `t4` VALUES (99,7,8,'2003-12-24','2003-12-24','18:45:35','18:45:35',NULL,NULL,'c','c');
|
|
INSERT INTO `t4` VALUES (100,2,5,'2001-07-26','2001-07-26','11:49:25','11:49:25','2007-04-25 05:08:49','2007-04-25 05:08:49','f','f');
|
|
SET @@optimizer_switch='subquery_cache=off';
|
|
/* cache is off */ SELECT COUNT( DISTINCT table2 .`col_int_key` ) , (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) , table2 .`col_varchar_nokey` field10
|
|
FROM t4 table1 JOIN ( t1 table2 STRAIGHT_JOIN t1 table3 ON table2 .`pk` ) ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
GROUP BY field10 ;
|
|
COUNT( DISTINCT table2 .`col_int_key` ) (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) field10
|
|
1 NULL c
|
|
1 NULL d
|
|
1 NULL e
|
|
1 NULL f
|
|
1 NULL h
|
|
1 NULL j
|
|
2 NULL k
|
|
2 NULL m
|
|
1 NULL n
|
|
1 NULL o
|
|
0 NULL r
|
|
2 NULL t
|
|
1 NULL u
|
|
1 NULL w
|
|
1 NULL y
|
|
SET @@optimizer_switch='subquery_cache=on';
|
|
/* cache is on */ SELECT COUNT( DISTINCT table2 .`col_int_key` ) , (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) , table2 .`col_varchar_nokey` field10
|
|
FROM t4 table1 JOIN ( t1 table2 STRAIGHT_JOIN t1 table3 ON table2 .`pk` ) ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
GROUP BY field10 ;
|
|
COUNT( DISTINCT table2 .`col_int_key` ) (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) field10
|
|
1 NULL c
|
|
1 NULL d
|
|
1 NULL e
|
|
1 NULL f
|
|
1 NULL h
|
|
1 NULL j
|
|
2 NULL k
|
|
2 NULL m
|
|
1 NULL n
|
|
1 NULL o
|
|
0 NULL r
|
|
2 NULL t
|
|
1 NULL u
|
|
1 NULL w
|
|
1 NULL y
|
|
drop table t1,t2,t3,t4;
|
|
set @@optimizer_switch= default;
|
|
#launchpad BUG#609045
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (10,7,8,'v','v');
|
|
INSERT INTO `t2` VALUES (11,1,9,'r','r');
|
|
INSERT INTO `t2` VALUES (12,5,9,'a','a');
|
|
INSERT INTO `t2` VALUES (13,3,186,'m','m');
|
|
INSERT INTO `t2` VALUES (14,6,NULL,'y','y');
|
|
INSERT INTO `t2` VALUES (15,92,2,'j','j');
|
|
INSERT INTO `t2` VALUES (16,7,3,'d','d');
|
|
INSERT INTO `t2` VALUES (17,NULL,0,'z','z');
|
|
INSERT INTO `t2` VALUES (18,3,133,'e','e');
|
|
INSERT INTO `t2` VALUES (19,5,1,'h','h');
|
|
INSERT INTO `t2` VALUES (20,1,8,'b','b');
|
|
INSERT INTO `t2` VALUES (21,2,5,'s','s');
|
|
INSERT INTO `t2` VALUES (22,NULL,5,'e','e');
|
|
INSERT INTO `t2` VALUES (23,1,8,'j','j');
|
|
INSERT INTO `t2` VALUES (24,0,6,'e','e');
|
|
INSERT INTO `t2` VALUES (25,210,51,'f','f');
|
|
INSERT INTO `t2` VALUES (26,8,4,'v','v');
|
|
INSERT INTO `t2` VALUES (27,7,7,'x','x');
|
|
INSERT INTO `t2` VALUES (28,5,6,'m','m');
|
|
INSERT INTO `t2` VALUES (29,NULL,4,'c','c');
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,NULL,2,'w','w');
|
|
INSERT INTO `t1` VALUES (2,7,9,'m','m');
|
|
INSERT INTO `t1` VALUES (3,9,3,'m','m');
|
|
INSERT INTO `t1` VALUES (4,7,9,'k','k');
|
|
INSERT INTO `t1` VALUES (5,4,NULL,'r','r');
|
|
INSERT INTO `t1` VALUES (6,2,9,'t','t');
|
|
INSERT INTO `t1` VALUES (7,6,3,'j','j');
|
|
INSERT INTO `t1` VALUES (8,8,8,'u','u');
|
|
INSERT INTO `t1` VALUES (9,NULL,8,'h','h');
|
|
INSERT INTO `t1` VALUES (10,5,53,'o','o');
|
|
INSERT INTO `t1` VALUES (11,NULL,0,NULL,NULL);
|
|
INSERT INTO `t1` VALUES (12,6,5,'k','k');
|
|
INSERT INTO `t1` VALUES (13,188,166,'e','e');
|
|
INSERT INTO `t1` VALUES (14,2,3,'n','n');
|
|
INSERT INTO `t1` VALUES (15,1,0,'t','t');
|
|
INSERT INTO `t1` VALUES (16,1,1,'c','c');
|
|
INSERT INTO `t1` VALUES (17,0,9,'m','m');
|
|
INSERT INTO `t1` VALUES (18,9,5,'y','y');
|
|
INSERT INTO `t1` VALUES (19,NULL,6,'f','f');
|
|
INSERT INTO `t1` VALUES (20,4,2,'d','d');
|
|
SET @@optimizer_switch = 'subquery_cache=off';
|
|
/* cache is off */ SELECT SUM( DISTINCT table1 .`pk` ) , (
|
|
SELECT MAX( `col_int_nokey` )
|
|
FROM t1
|
|
WHERE table1 .`pk` ) field3
|
|
FROM t1 table1
|
|
JOIN (
|
|
t1 table2
|
|
JOIN t2 table3
|
|
ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
)
|
|
ON table3 .`col_varchar_key` = table2 .`col_varchar_nokey`
|
|
GROUP BY field3 ;
|
|
SUM( DISTINCT table1 .`pk` ) field3
|
|
210 188
|
|
SET @@optimizer_switch = 'subquery_cache=on';
|
|
/* cache is on */ SELECT SUM( DISTINCT table1 .`pk` ) , (
|
|
SELECT MAX( `col_int_nokey` )
|
|
FROM t1
|
|
WHERE table1 .`pk` ) field3
|
|
FROM t1 table1
|
|
JOIN (
|
|
t1 table2
|
|
JOIN t2 table3
|
|
ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
)
|
|
ON table3 .`col_varchar_key` = table2 .`col_varchar_nokey`
|
|
GROUP BY field3 ;
|
|
SUM( DISTINCT table1 .`pk` ) field3
|
|
210 188
|
|
drop table t1,t2;
|
|
set @@optimizer_switch= default;
|
|
#launchpad BUG#609052
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (10,7,8,'01:27:35','v','v');
|
|
INSERT INTO `t2` VALUES (11,1,9,'19:48:31','r','r');
|
|
INSERT INTO `t2` VALUES (12,5,9,'00:00:00','a','a');
|
|
INSERT INTO `t2` VALUES (13,3,186,'19:53:05','m','m');
|
|
INSERT INTO `t2` VALUES (14,6,NULL,'19:18:56','y','y');
|
|
INSERT INTO `t2` VALUES (15,92,2,'10:55:12','j','j');
|
|
INSERT INTO `t2` VALUES (16,7,3,'00:25:00','d','d');
|
|
INSERT INTO `t2` VALUES (17,NULL,0,'12:35:47','z','z');
|
|
INSERT INTO `t2` VALUES (18,3,133,'19:53:03','e','e');
|
|
INSERT INTO `t2` VALUES (19,5,1,'17:53:30','h','h');
|
|
INSERT INTO `t2` VALUES (20,1,8,'11:35:49','b','b');
|
|
INSERT INTO `t2` VALUES (21,2,5,NULL,'s','s');
|
|
INSERT INTO `t2` VALUES (22,NULL,5,'06:01:40','e','e');
|
|
INSERT INTO `t2` VALUES (23,1,8,'05:45:11','j','j');
|
|
INSERT INTO `t2` VALUES (24,0,6,'00:00:00','e','e');
|
|
INSERT INTO `t2` VALUES (25,210,51,'00:00:00','f','f');
|
|
INSERT INTO `t2` VALUES (26,8,4,'06:11:01','v','v');
|
|
INSERT INTO `t2` VALUES (27,7,7,'13:02:46','x','x');
|
|
INSERT INTO `t2` VALUES (28,5,6,'21:44:25','m','m');
|
|
INSERT INTO `t2` VALUES (29,NULL,4,'22:43:58','c','c');
|
|
CREATE TABLE `t4` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t4` VALUES (1,6,NULL,NULL,'r','r');
|
|
INSERT INTO `t4` VALUES (2,8,0,'14:34:45','c','c');
|
|
INSERT INTO `t4` VALUES (3,6,0,'11:49:48','o','o');
|
|
INSERT INTO `t4` VALUES (4,6,7,'18:12:55','c','c');
|
|
INSERT INTO `t4` VALUES (5,3,8,'18:30:05','d','d');
|
|
INSERT INTO `t4` VALUES (6,9,4,'14:19:30','v','v');
|
|
INSERT INTO `t4` VALUES (7,2,6,'05:20:04','m','m');
|
|
INSERT INTO `t4` VALUES (8,1,5,'20:29:31','j','j');
|
|
INSERT INTO `t4` VALUES (9,8,NULL,'07:08:09','f','f');
|
|
INSERT INTO `t4` VALUES (10,0,NULL,'14:49:14','n','n');
|
|
INSERT INTO `t4` VALUES (11,9,8,'00:00:00','z','z');
|
|
INSERT INTO `t4` VALUES (12,8,8,'09:58:06','h','h');
|
|
INSERT INTO `t4` VALUES (13,NULL,8,NULL,'q','q');
|
|
INSERT INTO `t4` VALUES (14,0,1,'18:24:16','w','w');
|
|
INSERT INTO `t4` VALUES (15,5,1,'17:39:57','z','z');
|
|
INSERT INTO `t4` VALUES (16,1,5,'08:23:21','j','j');
|
|
INSERT INTO `t4` VALUES (17,1,2,NULL,'a','a');
|
|
INSERT INTO `t4` VALUES (18,6,7,'21:50:46','m','m');
|
|
INSERT INTO `t4` VALUES (19,6,6,'12:33:17','n','n');
|
|
INSERT INTO `t4` VALUES (20,1,4,'03:06:43','e','e');
|
|
INSERT INTO `t4` VALUES (21,8,7,'03:46:14','u','u');
|
|
INSERT INTO `t4` VALUES (22,1,0,'20:34:52','s','s');
|
|
INSERT INTO `t4` VALUES (23,0,9,NULL,'u','u');
|
|
INSERT INTO `t4` VALUES (24,4,3,'10:41:20','r','r');
|
|
INSERT INTO `t4` VALUES (25,9,5,'08:43:11','g','g');
|
|
INSERT INTO `t4` VALUES (26,8,1,NULL,'o','o');
|
|
INSERT INTO `t4` VALUES (27,5,1,'10:17:51','w','w');
|
|
INSERT INTO `t4` VALUES (28,9,5,'06:34:09','b','b');
|
|
INSERT INTO `t4` VALUES (29,5,9,'21:22:47',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (30,NULL,2,'04:02:32','y','y');
|
|
INSERT INTO `t4` VALUES (31,NULL,5,'02:33:14','y','y');
|
|
INSERT INTO `t4` VALUES (32,105,248,'16:32:56','u','u');
|
|
INSERT INTO `t4` VALUES (33,0,0,'21:32:42','p','p');
|
|
INSERT INTO `t4` VALUES (34,3,8,'23:04:47','s','s');
|
|
INSERT INTO `t4` VALUES (35,1,1,'22:05:43','e','e');
|
|
INSERT INTO `t4` VALUES (36,75,255,'02:05:45','d','d');
|
|
INSERT INTO `t4` VALUES (37,9,9,'00:00:00','d','d');
|
|
INSERT INTO `t4` VALUES (38,7,9,'18:09:07','c','c');
|
|
INSERT INTO `t4` VALUES (39,NULL,3,'10:54:06','b','b');
|
|
INSERT INTO `t4` VALUES (40,NULL,9,'23:15:50','t','t');
|
|
INSERT INTO `t4` VALUES (41,4,6,'10:17:40',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (42,0,4,'03:37:09','y','y');
|
|
INSERT INTO `t4` VALUES (43,204,60,'22:26:06','c','c');
|
|
INSERT INTO `t4` VALUES (44,0,7,'17:10:38','d','d');
|
|
INSERT INTO `t4` VALUES (45,9,1,'00:00:00','x','x');
|
|
INSERT INTO `t4` VALUES (46,8,6,'17:08:49','p','p');
|
|
INSERT INTO `t4` VALUES (47,7,4,'19:04:40','e','e');
|
|
INSERT INTO `t4` VALUES (48,8,NULL,'20:53:28','g','g');
|
|
INSERT INTO `t4` VALUES (49,NULL,8,'11:46:03','x','x');
|
|
INSERT INTO `t4` VALUES (50,6,0,NULL,'s','s');
|
|
INSERT INTO `t4` VALUES (51,5,8,'10:58:07','e','e');
|
|
INSERT INTO `t4` VALUES (52,2,151,'00:00:00','l','l');
|
|
INSERT INTO `t4` VALUES (53,3,7,'09:43:15','p','p');
|
|
INSERT INTO `t4` VALUES (54,7,6,'21:40:32','h','h');
|
|
INSERT INTO `t4` VALUES (55,NULL,NULL,'00:17:44','m','m');
|
|
INSERT INTO `t4` VALUES (56,145,23,'16:47:26','n','n');
|
|
INSERT INTO `t4` VALUES (57,0,2,'00:00:00','v','v');
|
|
INSERT INTO `t4` VALUES (58,1,4,'05:25:59','b','b');
|
|
INSERT INTO `t4` VALUES (59,7,NULL,'00:00:00','x','x');
|
|
INSERT INTO `t4` VALUES (60,3,NULL,'20:33:04','r','r');
|
|
INSERT INTO `t4` VALUES (61,NULL,77,'00:46:12','t','t');
|
|
INSERT INTO `t4` VALUES (62,2,NULL,'00:00:00','w','w');
|
|
INSERT INTO `t4` VALUES (63,2,NULL,'02:13:59','w','w');
|
|
INSERT INTO `t4` VALUES (64,2,7,'02:54:47','k','k');
|
|
INSERT INTO `t4` VALUES (65,8,1,'18:13:59','a','a');
|
|
INSERT INTO `t4` VALUES (66,6,9,'13:53:08','t','t');
|
|
INSERT INTO `t4` VALUES (67,1,6,'22:21:30','z','z');
|
|
INSERT INTO `t4` VALUES (68,NULL,2,'11:41:50','e','e');
|
|
INSERT INTO `t4` VALUES (69,1,3,'15:20:02','q','q');
|
|
INSERT INTO `t4` VALUES (70,0,0,NULL,'e','e');
|
|
INSERT INTO `t4` VALUES (71,4,NULL,NULL,'v','v');
|
|
INSERT INTO `t4` VALUES (72,1,6,'07:51:52','d','d');
|
|
INSERT INTO `t4` VALUES (73,1,3,'00:00:00','u','u');
|
|
INSERT INTO `t4` VALUES (74,27,195,NULL,'o','o');
|
|
INSERT INTO `t4` VALUES (75,4,5,NULL,'b','b');
|
|
INSERT INTO `t4` VALUES (76,6,2,'12:31:05','c','c');
|
|
INSERT INTO `t4` VALUES (77,2,7,'00:00:00','q','q');
|
|
INSERT INTO `t4` VALUES (78,248,25,'01:16:45',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (79,NULL,NULL,'20:38:54','h','h');
|
|
INSERT INTO `t4` VALUES (80,9,0,'00:30:15','d','d');
|
|
INSERT INTO `t4` VALUES (81,75,98,'23:46:36','w','w');
|
|
INSERT INTO `t4` VALUES (82,2,6,'19:03:13','m','m');
|
|
INSERT INTO `t4` VALUES (83,9,5,'10:54:27','i','i');
|
|
INSERT INTO `t4` VALUES (84,4,0,'00:25:47','w','w');
|
|
INSERT INTO `t4` VALUES (85,0,3,'08:44:27','f','f');
|
|
INSERT INTO `t4` VALUES (86,0,1,'08:15:38','k','k');
|
|
INSERT INTO `t4` VALUES (87,1,1,'19:56:21','v','v');
|
|
INSERT INTO `t4` VALUES (88,119,147,'00:00:00','c','c');
|
|
INSERT INTO `t4` VALUES (89,1,3,'20:50:52','y','y');
|
|
INSERT INTO `t4` VALUES (90,7,3,'03:54:39','h','h');
|
|
INSERT INTO `t4` VALUES (91,2,NULL,'23:58:17',NULL,NULL);
|
|
INSERT INTO `t4` VALUES (92,7,2,'12:54:58','t','t');
|
|
INSERT INTO `t4` VALUES (93,2,1,'04:02:43','l','l');
|
|
INSERT INTO `t4` VALUES (94,6,8,'11:31:12','a','a');
|
|
INSERT INTO `t4` VALUES (95,4,8,'20:20:04','r','r');
|
|
INSERT INTO `t4` VALUES (96,5,8,'00:22:24','s','s');
|
|
INSERT INTO `t4` VALUES (97,7,0,'10:09:31','z','z');
|
|
INSERT INTO `t4` VALUES (98,1,1,NULL,'j','j');
|
|
INSERT INTO `t4` VALUES (99,7,8,'18:45:35','c','c');
|
|
INSERT INTO `t4` VALUES (100,2,5,'11:49:25','f','f');
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,NULL,2,'11:28:45','w','w');
|
|
INSERT INTO `t1` VALUES (2,7,9,'20:25:14','m','m');
|
|
INSERT INTO `t1` VALUES (3,9,3,'13:47:24','m','m');
|
|
INSERT INTO `t1` VALUES (4,7,9,'19:24:11','k','k');
|
|
INSERT INTO `t1` VALUES (5,4,NULL,'15:59:13','r','r');
|
|
INSERT INTO `t1` VALUES (6,2,9,'00:00:00','t','t');
|
|
INSERT INTO `t1` VALUES (7,6,3,'15:15:04','j','j');
|
|
INSERT INTO `t1` VALUES (8,8,8,'11:32:06','u','u');
|
|
INSERT INTO `t1` VALUES (9,NULL,8,'18:32:33','h','h');
|
|
INSERT INTO `t1` VALUES (10,5,53,'15:19:25','o','o');
|
|
INSERT INTO `t1` VALUES (11,NULL,0,'19:03:19',NULL,NULL);
|
|
INSERT INTO `t1` VALUES (12,6,5,'00:39:46','k','k');
|
|
INSERT INTO `t1` VALUES (13,188,166,NULL,'e','e');
|
|
INSERT INTO `t1` VALUES (14,2,3,'00:00:00','n','n');
|
|
INSERT INTO `t1` VALUES (15,1,0,'13:12:11','t','t');
|
|
INSERT INTO `t1` VALUES (16,1,1,'04:56:48','c','c');
|
|
INSERT INTO `t1` VALUES (17,0,9,'19:56:05','m','m');
|
|
INSERT INTO `t1` VALUES (18,9,5,'19:35:19','y','y');
|
|
INSERT INTO `t1` VALUES (19,NULL,6,'05:03:03','f','f');
|
|
INSERT INTO `t1` VALUES (20,4,2,'18:38:59','d','d');
|
|
CREATE TABLE `t3` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t3` VALUES (10,8,8,'18:27:58',NULL,NULL);
|
|
CREATE TABLE `t5` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t5` VALUES (1,1,7,'01:13:38','f','f');
|
|
SET @@optimizer_switch='subquery_cache=off';
|
|
/* cache is off */ SELECT SQL_SMALL_RESULT MAX( DISTINCT table1 . `col_varchar_key` ) AS field1 , MIN( table1 . `col_varchar_nokey` ) AS field2 , COUNT( table1 . `col_varchar_key` ) AS field3 , table2 . `col_time_key` AS field4 , COUNT( DISTINCT table2 . `col_int_key` ) AS field5 , (
|
|
SELECT MAX( SUBQUERY1_t2 . `col_int_nokey` ) AS SUBQUERY1_field1
|
|
FROM ( t3 AS SUBQUERY1_t1 INNER JOIN t1 AS SUBQUERY1_t2 ON (SUBQUERY1_t2 . `col_varchar_key` = SUBQUERY1_t1 . `col_varchar_nokey` ) )
|
|
WHERE SUBQUERY1_t2 . `pk` < SUBQUERY1_t2 . `pk` ) AS field6 , COUNT( table1 . `col_varchar_nokey` ) AS field7 , COUNT( table2 . `pk` ) AS field8 , (
|
|
SELECT MAX( SUBQUERY2_t1 . `col_int_key` ) AS SUBQUERY2_field1
|
|
FROM ( t5 AS SUBQUERY2_t1 LEFT JOIN t2 AS SUBQUERY2_t2 ON (SUBQUERY2_t2 . `col_int_key` = SUBQUERY2_t1 . `col_int_key` ) )
|
|
WHERE SUBQUERY2_t2 . `col_varchar_nokey` != table1 . `col_varchar_key` OR SUBQUERY2_t1 . `col_varchar_nokey` >= 'o' ) AS field9 , CONCAT ( table1 . `col_varchar_key` , table2 . `col_varchar_nokey` ) AS field10
|
|
FROM ( t4 AS table1 LEFT JOIN ( ( t1 AS table2 STRAIGHT_JOIN t1 AS table3 ON (table3 . `col_int_nokey` = table2 . `pk` ) ) ) ON (table3 . `col_varchar_key` = table2 . `col_varchar_key` ) )
|
|
WHERE ( EXISTS (
|
|
SELECT SUBQUERY3_t1 . `pk` AS SUBQUERY3_field1
|
|
FROM ( t4 AS SUBQUERY3_t1 INNER JOIN t4 AS SUBQUERY3_t2 ON (SUBQUERY3_t2 . `col_varchar_key` = SUBQUERY3_t1 . `col_varchar_key` ) )
|
|
WHERE SUBQUERY3_t1 . `col_int_key` > table3 . `pk` AND SUBQUERY3_t1 . `pk` != table3 . `pk` ) ) AND ( table1 . `pk` > 116 AND table1 . `pk` < ( 116 + 175 ) OR table1 . `pk` IN (251) ) OR table1 . `col_int_nokey` = table1 . `col_int_nokey`
|
|
GROUP BY field4, field6, field9, field10
|
|
HAVING field10 = 'c'
|
|
;
|
|
field1 field2 field3 field4 field5 field6 field7 field8 field9 field10
|
|
SET @@optimizer_switch='subquery_cache=on';
|
|
/* cache is on */ SELECT SQL_SMALL_RESULT MAX( DISTINCT table1 . `col_varchar_key` ) AS field1 , MIN( table1 . `col_varchar_nokey` ) AS field2 , COUNT( table1 . `col_varchar_key` ) AS field3 , table2 . `col_time_key` AS field4 , COUNT( DISTINCT table2 . `col_int_key` ) AS field5 , (
|
|
SELECT MAX( SUBQUERY1_t2 . `col_int_nokey` ) AS SUBQUERY1_field1
|
|
FROM ( t3 AS SUBQUERY1_t1 INNER JOIN t1 AS SUBQUERY1_t2 ON (SUBQUERY1_t2 . `col_varchar_key` = SUBQUERY1_t1 . `col_varchar_nokey` ) )
|
|
WHERE SUBQUERY1_t2 . `pk` < SUBQUERY1_t2 . `pk` ) AS field6 , COUNT( table1 . `col_varchar_nokey` ) AS field7 , COUNT( table2 . `pk` ) AS field8 , (
|
|
SELECT MAX( SUBQUERY2_t1 . `col_int_key` ) AS SUBQUERY2_field1
|
|
FROM ( t5 AS SUBQUERY2_t1 LEFT JOIN t2 AS SUBQUERY2_t2 ON (SUBQUERY2_t2 . `col_int_key` = SUBQUERY2_t1 . `col_int_key` ) )
|
|
WHERE SUBQUERY2_t2 . `col_varchar_nokey` != table1 . `col_varchar_key` OR SUBQUERY2_t1 . `col_varchar_nokey` >= 'o' ) AS field9 , CONCAT ( table1 . `col_varchar_key` , table2 . `col_varchar_nokey` ) AS field10
|
|
FROM ( t4 AS table1 LEFT JOIN ( ( t1 AS table2 STRAIGHT_JOIN t1 AS table3 ON (table3 . `col_int_nokey` = table2 . `pk` ) ) ) ON (table3 . `col_varchar_key` = table2 . `col_varchar_key` ) )
|
|
WHERE ( EXISTS (
|
|
SELECT SUBQUERY3_t1 . `pk` AS SUBQUERY3_field1
|
|
FROM ( t4 AS SUBQUERY3_t1 INNER JOIN t4 AS SUBQUERY3_t2 ON (SUBQUERY3_t2 . `col_varchar_key` = SUBQUERY3_t1 . `col_varchar_key` ) )
|
|
WHERE SUBQUERY3_t1 . `col_int_key` > table3 . `pk` AND SUBQUERY3_t1 . `pk` != table3 . `pk` ) ) AND ( table1 . `pk` > 116 AND table1 . `pk` < ( 116 + 175 ) OR table1 . `pk` IN (251) ) OR table1 . `col_int_nokey` = table1 . `col_int_nokey`
|
|
GROUP BY field4, field6, field9, field10
|
|
HAVING field10 = 'c'
|
|
;
|
|
field1 field2 field3 field4 field5 field6 field7 field8 field9 field10
|
|
drop table t1,t2,t3,t4,t5;
|
|
set @@optimizer_switch= default;
|
|
#launchpad BUG#609043
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (19,NULL,6,'2004-08-20','2004-08-20','05:03:03','05:03:03','2007-04-19 00:19:53','2007-04-19 00:19:53','f','f');
|
|
INSERT INTO `t1` VALUES (20,4,2,'1900-01-01','1900-01-01','18:38:59','18:38:59','1900-01-01 00:00:00','1900-01-01 00:00:00','d','d');
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
|
|
CREATE TABLE `t3` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1;
|
|
CREATE TABLE `t4` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_date_key` date DEFAULT NULL,
|
|
`col_date_nokey` date DEFAULT NULL,
|
|
`col_time_key` time DEFAULT NULL,
|
|
`col_time_nokey` time DEFAULT NULL,
|
|
`col_datetime_key` datetime DEFAULT NULL,
|
|
`col_datetime_nokey` datetime DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_date_key` (`col_date_key`),
|
|
KEY `col_time_key` (`col_time_key`),
|
|
KEY `col_datetime_key` (`col_datetime_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t4` VALUES (100,2,5,'2001-07-26','2001-07-26','11:49:25','11:49:25','2007-04-25 05:08:49','2007-04-25 05:08:49','f','f');
|
|
SET @@optimizer_switch = 'subquery_cache=off';
|
|
/* cache is off */ SELECT COUNT( DISTINCT table2 .`col_int_key` ) , (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) , table2 .`col_varchar_nokey` field10
|
|
FROM t4 table1 JOIN ( t1 table2 STRAIGHT_JOIN t1 table3 ON table2 .`pk` ) ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
GROUP BY field10 ;
|
|
COUNT( DISTINCT table2 .`col_int_key` ) (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) field10
|
|
1 NULL d
|
|
1 NULL f
|
|
SET @@optimizer_switch = 'subquery_cache=on';
|
|
/* cache is on */ SELECT COUNT( DISTINCT table2 .`col_int_key` ) , (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) , table2 .`col_varchar_nokey` field10
|
|
FROM t4 table1 JOIN ( t1 table2 STRAIGHT_JOIN t1 table3 ON table2 .`pk` ) ON table3 .`col_varchar_key` = table2 .`col_varchar_key`
|
|
GROUP BY field10 ;
|
|
COUNT( DISTINCT table2 .`col_int_key` ) (
|
|
SELECT SUBQUERY2_t1 .`col_int_key`
|
|
FROM t3 SUBQUERY2_t1 JOIN t2 ON SUBQUERY2_t1 .`col_int_key`
|
|
WHERE table1 .`col_varchar_key` ) field10
|
|
1 NULL d
|
|
1 NULL f
|
|
drop table t1,t2,t3,t4;
|
|
set @@optimizer_switch= default;
|
|
#launchpad BUG#611625
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (1,NULL,'w');
|
|
INSERT INTO `t1` VALUES (2,7,'m');
|
|
INSERT INTO `t1` VALUES (3,9,'m');
|
|
INSERT INTO `t1` VALUES (4,7,'k');
|
|
INSERT INTO `t1` VALUES (5,4,'r');
|
|
INSERT INTO `t1` VALUES (6,2,'t');
|
|
INSERT INTO `t1` VALUES (7,6,'j');
|
|
INSERT INTO `t1` VALUES (8,8,'u');
|
|
INSERT INTO `t1` VALUES (9,NULL,'h');
|
|
INSERT INTO `t1` VALUES (10,5,'o');
|
|
INSERT INTO `t1` VALUES (11,NULL,NULL);
|
|
INSERT INTO `t1` VALUES (12,6,'k');
|
|
INSERT INTO `t1` VALUES (13,188,'e');
|
|
INSERT INTO `t1` VALUES (14,2,'n');
|
|
INSERT INTO `t1` VALUES (15,1,'t');
|
|
INSERT INTO `t1` VALUES (16,1,'c');
|
|
INSERT INTO `t1` VALUES (17,0,'m');
|
|
INSERT INTO `t1` VALUES (18,9,'y');
|
|
INSERT INTO `t1` VALUES (19,NULL,'f');
|
|
INSERT INTO `t1` VALUES (20,4,'d');
|
|
CREATE TABLE `t3` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=101 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t3` VALUES (1,6,'r');
|
|
INSERT INTO `t3` VALUES (2,8,'c');
|
|
INSERT INTO `t3` VALUES (3,6,'o');
|
|
INSERT INTO `t3` VALUES (4,6,'c');
|
|
INSERT INTO `t3` VALUES (5,3,'d');
|
|
INSERT INTO `t3` VALUES (6,9,'v');
|
|
INSERT INTO `t3` VALUES (7,2,'m');
|
|
INSERT INTO `t3` VALUES (8,1,'j');
|
|
INSERT INTO `t3` VALUES (9,8,'f');
|
|
INSERT INTO `t3` VALUES (10,0,'n');
|
|
INSERT INTO `t3` VALUES (11,9,'z');
|
|
INSERT INTO `t3` VALUES (12,8,'h');
|
|
INSERT INTO `t3` VALUES (13,NULL,'q');
|
|
INSERT INTO `t3` VALUES (14,0,'w');
|
|
INSERT INTO `t3` VALUES (15,5,'z');
|
|
INSERT INTO `t3` VALUES (16,1,'j');
|
|
INSERT INTO `t3` VALUES (17,1,'a');
|
|
INSERT INTO `t3` VALUES (18,6,'m');
|
|
INSERT INTO `t3` VALUES (19,6,'n');
|
|
INSERT INTO `t3` VALUES (20,1,'e');
|
|
INSERT INTO `t3` VALUES (21,8,'u');
|
|
INSERT INTO `t3` VALUES (22,1,'s');
|
|
INSERT INTO `t3` VALUES (23,0,'u');
|
|
INSERT INTO `t3` VALUES (24,4,'r');
|
|
INSERT INTO `t3` VALUES (25,9,'g');
|
|
INSERT INTO `t3` VALUES (26,8,'o');
|
|
INSERT INTO `t3` VALUES (27,5,'w');
|
|
INSERT INTO `t3` VALUES (28,9,'b');
|
|
INSERT INTO `t3` VALUES (29,5,NULL);
|
|
INSERT INTO `t3` VALUES (30,NULL,'y');
|
|
INSERT INTO `t3` VALUES (31,NULL,'y');
|
|
INSERT INTO `t3` VALUES (32,105,'u');
|
|
INSERT INTO `t3` VALUES (33,0,'p');
|
|
INSERT INTO `t3` VALUES (34,3,'s');
|
|
INSERT INTO `t3` VALUES (35,1,'e');
|
|
INSERT INTO `t3` VALUES (36,75,'d');
|
|
INSERT INTO `t3` VALUES (37,9,'d');
|
|
INSERT INTO `t3` VALUES (38,7,'c');
|
|
INSERT INTO `t3` VALUES (39,NULL,'b');
|
|
INSERT INTO `t3` VALUES (40,NULL,'t');
|
|
INSERT INTO `t3` VALUES (41,4,NULL);
|
|
INSERT INTO `t3` VALUES (42,0,'y');
|
|
INSERT INTO `t3` VALUES (43,204,'c');
|
|
INSERT INTO `t3` VALUES (44,0,'d');
|
|
INSERT INTO `t3` VALUES (45,9,'x');
|
|
INSERT INTO `t3` VALUES (46,8,'p');
|
|
INSERT INTO `t3` VALUES (47,7,'e');
|
|
INSERT INTO `t3` VALUES (48,8,'g');
|
|
INSERT INTO `t3` VALUES (49,NULL,'x');
|
|
INSERT INTO `t3` VALUES (50,6,'s');
|
|
INSERT INTO `t3` VALUES (51,5,'e');
|
|
INSERT INTO `t3` VALUES (52,2,'l');
|
|
INSERT INTO `t3` VALUES (53,3,'p');
|
|
INSERT INTO `t3` VALUES (54,7,'h');
|
|
INSERT INTO `t3` VALUES (55,NULL,'m');
|
|
INSERT INTO `t3` VALUES (56,145,'n');
|
|
INSERT INTO `t3` VALUES (57,0,'v');
|
|
INSERT INTO `t3` VALUES (58,1,'b');
|
|
INSERT INTO `t3` VALUES (59,7,'x');
|
|
INSERT INTO `t3` VALUES (60,3,'r');
|
|
INSERT INTO `t3` VALUES (61,NULL,'t');
|
|
INSERT INTO `t3` VALUES (62,2,'w');
|
|
INSERT INTO `t3` VALUES (63,2,'w');
|
|
INSERT INTO `t3` VALUES (64,2,'k');
|
|
INSERT INTO `t3` VALUES (65,8,'a');
|
|
INSERT INTO `t3` VALUES (66,6,'t');
|
|
INSERT INTO `t3` VALUES (67,1,'z');
|
|
INSERT INTO `t3` VALUES (68,NULL,'e');
|
|
INSERT INTO `t3` VALUES (69,1,'q');
|
|
INSERT INTO `t3` VALUES (70,0,'e');
|
|
INSERT INTO `t3` VALUES (71,4,'v');
|
|
INSERT INTO `t3` VALUES (72,1,'d');
|
|
INSERT INTO `t3` VALUES (73,1,'u');
|
|
INSERT INTO `t3` VALUES (74,27,'o');
|
|
INSERT INTO `t3` VALUES (75,4,'b');
|
|
INSERT INTO `t3` VALUES (76,6,'c');
|
|
INSERT INTO `t3` VALUES (77,2,'q');
|
|
INSERT INTO `t3` VALUES (78,248,NULL);
|
|
INSERT INTO `t3` VALUES (79,NULL,'h');
|
|
INSERT INTO `t3` VALUES (80,9,'d');
|
|
INSERT INTO `t3` VALUES (81,75,'w');
|
|
INSERT INTO `t3` VALUES (82,2,'m');
|
|
INSERT INTO `t3` VALUES (83,9,'i');
|
|
INSERT INTO `t3` VALUES (84,4,'w');
|
|
INSERT INTO `t3` VALUES (85,0,'f');
|
|
INSERT INTO `t3` VALUES (86,0,'k');
|
|
INSERT INTO `t3` VALUES (87,1,'v');
|
|
INSERT INTO `t3` VALUES (88,119,'c');
|
|
INSERT INTO `t3` VALUES (89,1,'y');
|
|
INSERT INTO `t3` VALUES (90,7,'h');
|
|
INSERT INTO `t3` VALUES (91,2,NULL);
|
|
INSERT INTO `t3` VALUES (92,7,'t');
|
|
INSERT INTO `t3` VALUES (93,2,'l');
|
|
INSERT INTO `t3` VALUES (94,6,'a');
|
|
INSERT INTO `t3` VALUES (95,4,'r');
|
|
INSERT INTO `t3` VALUES (96,5,'s');
|
|
INSERT INTO `t3` VALUES (97,7,'z');
|
|
INSERT INTO `t3` VALUES (98,1,'j');
|
|
INSERT INTO `t3` VALUES (99,7,'c');
|
|
INSERT INTO `t3` VALUES (100,2,'f');
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`)
|
|
) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (10,8,NULL);
|
|
set optimizer_switch='subquery_cache=off';
|
|
SELECT (
|
|
SELECT `col_int_nokey`
|
|
FROM t3
|
|
WHERE table1 .`col_varchar_nokey` ) field13
|
|
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
|
|
ORDER BY field13;
|
|
field13
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
set optimizer_switch='subquery_cache=on';
|
|
SELECT
|
|
(SELECT `col_int_nokey`
|
|
FROM t3
|
|
WHERE table1 .`col_varchar_nokey` ) field13
|
|
FROM t2 table1 JOIN t1 table2 ON table2 .`pk`
|
|
ORDER BY field13;
|
|
field13
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
NULL
|
|
drop table t1,t2,t3;
|
|
set @@optimizer_switch= default;
|
|
# LP BUG#615760 (part 1: double transformation)
|
|
create table t1 (a int);
|
|
insert into t1 values (1),(2);
|
|
create table t2 (b int);
|
|
insert into t2 values (1),(2);
|
|
set optimizer_switch='default,semijoin=off,materialization=off,subquery_cache=on';
|
|
explain extended
|
|
select * from t1 where a in (select b from t2);
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|
Warnings:
|
|
Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,<exists>(select `test`.`t2`.`b` from `test`.`t2` where (<cache>(`test`.`t1`.`a`) = `test`.`t2`.`b`))))
|
|
drop table t1,t2;
|
|
set @@optimizer_switch= default;
|
|
# LP BUG#615760 (part 2: incorrect heap table index flags)
|
|
SET SESSION optimizer_switch = 'index_merge=off,index_merge_union=off,index_merge_sort_union=off,index_merge_intersection=off,index_condition_pushdown=off,firstmatch=off,loosescan=off,materialization=off,semijoin=off,partial_match_rowid_merge=off,partial_match_table_scan=off,subquery_cache=on';
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) AUTO_INCREMENT=30 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (10,7,8,'v','v');
|
|
INSERT INTO `t1` VALUES (11,1,9,'r','r');
|
|
INSERT INTO `t1` VALUES (12,5,9,'a','a');
|
|
INSERT INTO `t1` VALUES (13,3,186,'m','m');
|
|
INSERT INTO `t1` VALUES (14,6,NULL,'y','y');
|
|
INSERT INTO `t1` VALUES (15,92,2,'j','j');
|
|
INSERT INTO `t1` VALUES (16,7,3,'d','d');
|
|
INSERT INTO `t1` VALUES (17,NULL,0,'z','z');
|
|
INSERT INTO `t1` VALUES (18,3,133,'e','e');
|
|
INSERT INTO `t1` VALUES (19,5,1,'h','h');
|
|
INSERT INTO `t1` VALUES (20,1,8,'b','b');
|
|
INSERT INTO `t1` VALUES (21,2,5,'s','s');
|
|
INSERT INTO `t1` VALUES (22,NULL,5,'e','e');
|
|
INSERT INTO `t1` VALUES (23,1,8,'j','j');
|
|
INSERT INTO `t1` VALUES (24,0,6,'e','e');
|
|
INSERT INTO `t1` VALUES (25,210,51,'f','f');
|
|
INSERT INTO `t1` VALUES (26,8,4,'v','v');
|
|
INSERT INTO `t1` VALUES (27,7,7,'x','x');
|
|
INSERT INTO `t1` VALUES (28,5,6,'m','m');
|
|
INSERT INTO `t1` VALUES (29,NULL,4,'c','c');
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_int_nokey` int(11) DEFAULT NULL,
|
|
`col_int_key` int(11) DEFAULT NULL,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
`col_varchar_nokey` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_int_key` (`col_int_key`),
|
|
KEY `col_varchar_key` (`col_varchar_key`,`col_int_key`)
|
|
) AUTO_INCREMENT=21 DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (1,NULL,2,'w','w');
|
|
INSERT INTO `t2` VALUES (2,7,9,'m','m');
|
|
INSERT INTO `t2` VALUES (3,9,3,'m','m');
|
|
INSERT INTO `t2` VALUES (4,7,9,'k','k');
|
|
INSERT INTO `t2` VALUES (5,4,NULL,'r','r');
|
|
INSERT INTO `t2` VALUES (6,2,9,'t','t');
|
|
INSERT INTO `t2` VALUES (7,6,3,'j','j');
|
|
INSERT INTO `t2` VALUES (8,8,8,'u','u');
|
|
INSERT INTO `t2` VALUES (9,NULL,8,'h','h');
|
|
INSERT INTO `t2` VALUES (10,5,53,'o','o');
|
|
INSERT INTO `t2` VALUES (11,NULL,0,NULL,NULL);
|
|
INSERT INTO `t2` VALUES (12,6,5,'k','k');
|
|
INSERT INTO `t2` VALUES (13,188,166,'e','e');
|
|
INSERT INTO `t2` VALUES (14,2,3,'n','n');
|
|
INSERT INTO `t2` VALUES (15,1,0,'t','t');
|
|
INSERT INTO `t2` VALUES (16,1,1,'c','c');
|
|
INSERT INTO `t2` VALUES (17,0,9,'m','m');
|
|
INSERT INTO `t2` VALUES (18,9,5,'y','y');
|
|
INSERT INTO `t2` VALUES (19,NULL,6,'f','f');
|
|
INSERT INTO `t2` VALUES (20,4,2,'d','d');
|
|
SELECT table1 .`col_varchar_nokey`
|
|
FROM t2 table1 RIGHT JOIN t1 LEFT JOIN (
|
|
SELECT SUBQUERY1_t2 .*
|
|
FROM t1 SUBQUERY1_t1 LEFT JOIN t2 SUBQUERY1_t2 ON SUBQUERY1_t2 .`col_int_key` = SUBQUERY1_t1 .`col_int_nokey` ) table3 STRAIGHT_JOIN ( (
|
|
SELECT *
|
|
FROM t1 ) table4 JOIN ( t1 table5 JOIN t2 table6 ON table5 .`pk` ) ON table5 .`col_varchar_nokey` ) ON table6 .`pk` = table5 .`col_int_key` ON table5 .`col_varchar_nokey` ON table5 .`col_varchar_key`
|
|
WHERE table3 .`col_varchar_key` IN (
|
|
SELECT `col_varchar_key`
|
|
FROM t2 ) AND table1 .`col_varchar_key` OR table1 .`pk` ;
|
|
col_varchar_nokey
|
|
drop table t1,t2;
|
|
set @@optimizer_switch= default;
|
|
set optimizer_switch='subquery_cache=on';
|
|
# LP BUG#615378 (incorrect NULL result returning in Item_cache)
|
|
CREATE TABLE `t1` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_varchar_key` (`col_varchar_key`)
|
|
) DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t1` VALUES (10,'v');
|
|
INSERT INTO `t1` VALUES (11,'r');
|
|
CREATE TABLE `t2` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_varchar_key` (`col_varchar_key`)
|
|
) DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t2` VALUES (1,'r');
|
|
INSERT INTO `t2` VALUES (2,'c');
|
|
CREATE TABLE `t3` (
|
|
`pk` int(11) NOT NULL AUTO_INCREMENT,
|
|
`col_varchar_key` varchar(1) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
KEY `col_varchar_key` (`col_varchar_key`)
|
|
) DEFAULT CHARSET=latin1;
|
|
INSERT INTO `t3` VALUES (1,'w');
|
|
SELECT SUM( DISTINCT table2 . `pk` ) AS field2 ,
|
|
(SELECT SUM( SUBQUERY1_t2 . `pk` ) AS SUBQUERY1_field1
|
|
FROM t2 AS SUBQUERY1_t2 STRAIGHT_JOIN
|
|
t3 AS SUBQUERY1_t3 ON (SUBQUERY1_t3 . `pk` = SUBQUERY1_t2 . `pk` )
|
|
WHERE table1 . `col_varchar_key` ) AS field3
|
|
FROM ( t1 AS table1 LEFT JOIN
|
|
( t2 AS table2 STRAIGHT_JOIN
|
|
t3 AS table3 ON (table3 . `pk` = table2 . `pk` ) )
|
|
ON (table3 . `col_varchar_key` = table1 . `col_varchar_key` ) )
|
|
WHERE ( table1 . `pk` < 5 ) OR ( table1 . `col_varchar_key` IS NOT NULL)
|
|
GROUP BY field3
|
|
HAVING (field3 <= 'h' AND field2 != 4) ;
|
|
field2 field3
|
|
drop tables t1, t2, t3;
|
|
#
|
|
# Test aggregate functions as parameters to subquery cache
|
|
#
|
|
CREATE TABLE t1 ( a INT, b INT, c INT, KEY (a, b));
|
|
INSERT INTO t1 VALUES
|
|
( 1, 1, 1 ),
|
|
( 1, 2, 2 ),
|
|
( 1, 3, 3 ),
|
|
( 1, 4, 6 ),
|
|
( 1, 5, 5 ),
|
|
( 1, 9, 13 ),
|
|
( 2, 1, 6 ),
|
|
( 2, 2, 7 ),
|
|
( 2, 3, 8 );
|
|
SELECT a, AVG(t1.b),
|
|
(SELECT t11.c FROM t1 t11 WHERE t11.a = t1.a AND t11.b = AVG(t1.b)) AS t11c
|
|
FROM t1 GROUP BY a;
|
|
a AVG(t1.b) t11c
|
|
1 4.0000 6
|
|
2 2.0000 7
|
|
DROP TABLE t1;
|
|
#
|
|
# Test of LP BUG#800696 (deleting list of Items (OR arguments)
|
|
# in optimization)
|
|
#
|
|
set optimizer_switch='subquery_cache=on,in_to_exists=on';
|
|
CREATE TABLE t1 ( f3 int) ;
|
|
INSERT INTO t1 VALUES (0),(0);
|
|
CREATE TABLE t3 ( f3 int) ;
|
|
INSERT INTO t3 VALUES (0),(0);
|
|
CREATE TABLE t2 ( f1 int, f2 int, f3 int) ;
|
|
INSERT INTO t2 VALUES (7,0,0);
|
|
SELECT *
|
|
FROM t2, t3
|
|
WHERE t2.f2 OR t3.f3 IN
|
|
(
|
|
SELECT t2.f2
|
|
FROM t1
|
|
WHERE t2.f1 OR t2.f3 );
|
|
f1 f2 f3 f3
|
|
7 0 0 0
|
|
7 0 0 0
|
|
drop tables t1, t2, t3;
|
|
# restore default
|
|
set @@optimizer_switch= default;
|