| Current Path : /usr/opt/mysql57/mysql-test/suite/gcol/r/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/opt/mysql57/mysql-test/suite/gcol/r/gcol_keys_myisam.result |
SET @@session.default_storage_engine = 'MyISAM';
# - UNIQUE KEY
# - INDEX
# - FULLTEXT INDEX
# - SPATIAL INDEX (not supported)
# - FOREIGN INDEX (partially supported)
# - CHECK (allowed but not used)
# UNIQUE
create table t1 (a int, b int generated always as (a*2) stored unique);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) GENERATED ALWAYS AS ((`a` * 2)) STORED,
UNIQUE KEY `b` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
describe t1;
Field Type Null Key Default Extra
a int(11) YES NULL
b int(11) YES UNI NULL STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored, unique (b));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) GENERATED ALWAYS AS ((`a` * 2)) STORED,
UNIQUE KEY `b` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
describe t1;
Field Type Null Key Default Extra
a int(11) YES NULL
b int(11) YES UNI NULL STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add unique key (b);
drop table t1;
# Testing data manipulation operations involving UNIQUE keys
# on generated columns can be found in:
# - gcol_ins_upd.inc
# - gcol_select.inc
#
# INDEX
create table t1 (a int, b int generated always as (a*2) stored, index (b));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) GENERATED ALWAYS AS ((`a` * 2)) STORED,
KEY `b` (`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
describe t1;
Field Type Null Key Default Extra
a int(11) YES NULL
b int(11) YES MUL NULL STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored, index (a,b));
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) DEFAULT NULL,
`b` int(11) GENERATED ALWAYS AS ((`a` * 2)) STORED,
KEY `a` (`a`,`b`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
describe t1;
Field Type Null Key Default Extra
a int(11) YES MUL NULL
b int(11) YES NULL STORED GENERATED
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add index (b);
drop table t1;
create table t1 (a int, b int generated always as (a*2) stored);
alter table t1 add index (a,b);
create table t2 like t1;
drop table t2;
drop table t1;
# Testing data manipulation operations involving INDEX
# on generated columns can be found in:
# - gcol_select.inc
#
# TODO: FULLTEXT INDEX
# SPATIAL INDEX
# Error "All parts of a SPATIAL index must be geometrical"
create table t1 (a int, b int generated always as (a+1) stored, spatial index (b));
ERROR 42000: A SPATIAL index may only contain a geometrical type column
create table t1 (a int, b int generated always as (a+1) stored);
alter table t1 add spatial index (b);
ERROR 42000: A SPATIAL index may only contain a geometrical type column
drop table t1;
# FOREIGN KEY
# Rejected FK options.
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on update set null);
ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a generated column.
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on update cascade);
ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a generated column.
create table t1 (a int, b int generated always as (a+1) stored,
foreign key (b) references t2(a) on delete set null);
ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a generated column.
create table t1 (a int, b int generated always as (a+1) stored);
alter table t1 add foreign key (b) references t2(a) on update set null;
ERROR HY000: Cannot define foreign key with ON UPDATE SET NULL clause on a generated column.
alter table t1 add foreign key (b) references t2(a) on update cascade;
ERROR HY000: Cannot define foreign key with ON UPDATE CASCADE clause on a generated column.
alter table t1 add foreign key (b) references t2(a) on delete set null;
ERROR HY000: Cannot define foreign key with ON DELETE SET NULL clause on a generated column.
drop table t1;
# Allowed FK options.
create table t2 (a int primary key, b char(5));
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on update restrict);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on update no action);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete restrict);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete cascade);
drop table t1;
create table t1 (a int, b int generated always as (a % 10) stored,
foreign key (b) references t2(a) on delete no action);
drop table t1,t2;
# Testing data manipulation operations involving FOREIGN KEY
# on generated columns can be found in:
# - gcol_ins_upd.inc
# - gcol_select.inc
#
# TODO: CHECK
#
# Test how optimizer picks indexes defined on a GC
#
SET optimizer_trace_max_mem_size=1048576;
SET optimizer_trace="enabled=on,one_line=off";
SET end_markers_in_json="on";
CREATE TABLE t1 (f1 int, gc int AS (f1 + 1) STORED PRIMARY KEY);
INSERT INTO t1(f1) VALUES (1),(2),(0),(9),(3),(4),(8),(7),(5),(6);
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
# Should use index
SELECT * FROM t1 WHERE f1 + 1 > 7;
f1 gc
7 8
8 9
9 10
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 7;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL range PRIMARY PRIMARY 4 NULL 4 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` where (`test`.`t1`.`gc` > 7)
SELECT * FROM information_schema.OPTIMIZER_TRACE;
QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 7 {
"steps": [
{
"join_preparation": {
"select#": 1,
"steps": [
{
"expanded_query": "/* select#1 */ select `t1`.`f1` AS `f1`,`t1`.`gc` AS `gc` from `t1` where ((`t1`.`f1` + 1) > 7)"
}
] /* steps */
} /* join_preparation */
},
{
"join_optimization": {
"select#": 1,
"steps": [
{
"condition_processing": {
"condition": "WHERE",
"original_condition": "((`t1`.`f1` + 1) > 7)",
"steps": [
{
"transformation": "equality_propagation",
"resulting_condition": "((`t1`.`f1` + 1) > 7)"
},
{
"transformation": "constant_propagation",
"resulting_condition": "((`t1`.`f1` + 1) > 7)"
},
{
"transformation": "trivial_condition_removal",
"resulting_condition": "((`t1`.`f1` + 1) > 7)"
}
] /* steps */
} /* condition_processing */
},
{
"substitute_generated_columns": {
"resulting_condition": "(`t1`.`gc` > 7)"
} /* substitute_generated_columns */
},
{
"table_dependencies": [
{
"table": "`t1`",
"row_may_be_null": false,
"map_bit": 0,
"depends_on_map_bits": [
] /* depends_on_map_bits */
}
] /* table_dependencies */
},
{
"ref_optimizer_key_uses": [
] /* ref_optimizer_key_uses */
},
{
"rows_estimation": [
{
"table": "`t1`",
"range_analysis": {
"table_scan": {
"rows": 10,
"cost": 6.122
} /* table_scan */,
"potential_range_indexes": [
{
"index": "PRIMARY",
"usable": true,
"key_parts": [
"gc"
] /* key_parts */
}
] /* potential_range_indexes */,
"setup_range_conditions": [
] /* setup_range_conditions */,
"group_index_range": {
"chosen": false,
"cause": "not_group_by_or_distinct"
} /* group_index_range */,
"analyzing_range_alternatives": {
"range_scan_alternatives": [
{
"index": "PRIMARY",
"ranges": [
"7 < gc"
] /* ranges */,
"index_dives_for_eq_ranges": true,
"rowid_ordered": false,
"using_mrr": false,
"index_only": false,
"rows": 4,
"cost": 5.81,
"chosen": true
}
] /* range_scan_alternatives */,
"analyzing_roworder_intersect": {
"usable": false,
"cause": "too_few_roworder_scans"
} /* analyzing_roworder_intersect */
} /* analyzing_range_alternatives */,
"chosen_range_access_summary": {
"range_access_plan": {
"type": "range_scan",
"index": "PRIMARY",
"rows": 4,
"ranges": [
"7 < gc"
] /* ranges */
} /* range_access_plan */,
"rows_for_plan": 4,
"cost_for_plan": 5.81,
"chosen": true
} /* chosen_range_access_summary */
} /* range_analysis */
}
] /* rows_estimation */
},
{
"considered_execution_plans": [
{
"plan_prefix": [
] /* plan_prefix */,
"table": "`t1`",
"best_access_path": {
"considered_access_paths": [
{
"rows_to_scan": 4,
"access_type": "range",
"range_details": {
"used_index": "PRIMARY"
} /* range_details */,
"resulting_rows": 4,
"cost": 6.61,
"chosen": true
}
] /* considered_access_paths */
} /* best_access_path */,
"condition_filtering_pct": 100,
"rows_for_plan": 4,
"cost_for_plan": 6.61,
"chosen": true
}
] /* considered_execution_plans */
},
{
"attaching_conditions_to_tables": {
"original_condition": "(`t1`.`gc` > 7)",
"attached_conditions_computation": [
] /* attached_conditions_computation */,
"attached_conditions_summary": [
{
"table": "`t1`",
"attached": "(`t1`.`gc` > 7)"
}
] /* attached_conditions_summary */
} /* attaching_conditions_to_tables */
},
{
"refine_plan": [
{
"table": "`t1`",
"pushed_index_condition": "(`t1`.`gc` > 7)",
"table_condition_attached": null
}
] /* refine_plan */
}
] /* steps */
} /* join_optimization */
},
{
"join_explain": {
"select#": 1,
"steps": [
] /* steps */
} /* join_explain */
}
] /* steps */
} 0 0
SELECT * FROM t1 WHERE f1 + 1 = 7;
f1 gc
6 7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 = 7;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL const PRIMARY PRIMARY 4 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select '6' AS `f1`,'7' AS `gc` from `test`.`t1` where ('7' = 7)
SELECT * FROM t1 WHERE f1 + 1 IN (7,5);
f1 gc
4 5
6 7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 IN(7,5);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` where (`test`.`t1`.`gc` in (7,5))
SELECT * FROM t1 WHERE f1 + 1 BETWEEN 5 AND 7;
f1 gc
4 5
5 6
6 7
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 BETWEEN 5 AND 7;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` where (`test`.`t1`.`gc` between 5 and 7)
# Check that expression isn't transformed for a disabled key
SELECT * FROM t1 IGNORE KEY FOR JOIN(PRIMARY) WHERE f1 + 1 BETWEEN 5 AND 7;
f1 gc
4 5
5 6
6 7
EXPLAIN SELECT * FROM t1 IGNORE KEY FOR JOIN(PRIMARY) WHERE f1 + 1 BETWEEN 5 AND 7;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 100.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` IGNORE INDEX FOR JOIN (PRIMARY) where ((`test`.`t1`.`f1` + 1) between 5 and 7)
# Check that ORDER BY could be optimized
SELECT * FROM t1 ORDER BY f1 + 1;
f1 gc
0 1
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
EXPLAIN SELECT * FROM t1 ORDER BY f1 + 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 100.00 Using filesort
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` order by `test`.`t1`.`gc`
SELECT * FROM information_schema.OPTIMIZER_TRACE;
QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
EXPLAIN SELECT * FROM t1 ORDER BY f1 + 1 {
"steps": [
{
"join_preparation": {
"select#": 1,
"steps": [
{
"expanded_query": "/* select#1 */ select `t1`.`f1` AS `f1`,`t1`.`gc` AS `gc` from `t1` order by (`t1`.`f1` + 1)"
}
] /* steps */
} /* join_preparation */
},
{
"join_optimization": {
"select#": 1,
"steps": [
{
"substitute_generated_columns": {
"resulting_ORDER_BY": "`t1`.`gc`"
} /* substitute_generated_columns */
},
{
"table_dependencies": [
{
"table": "`t1`",
"row_may_be_null": false,
"map_bit": 0,
"depends_on_map_bits": [
] /* depends_on_map_bits */
}
] /* table_dependencies */
},
{
"rows_estimation": [
{
"table": "`t1`",
"table_scan": {
"rows": 10,
"cost": 2
} /* table_scan */
}
] /* rows_estimation */
},
{
"considered_execution_plans": [
{
"plan_prefix": [
] /* plan_prefix */,
"table": "`t1`",
"best_access_path": {
"considered_access_paths": [
{
"rows_to_scan": 10,
"access_type": "scan",
"resulting_rows": 10,
"cost": 4.022,
"chosen": true,
"use_tmp_table": true
}
] /* considered_access_paths */
} /* best_access_path */,
"condition_filtering_pct": 100,
"rows_for_plan": 10,
"cost_for_plan": 4.022,
"sort_cost": 10,
"new_cost_for_plan": 14.022,
"chosen": true
}
] /* considered_execution_plans */
},
{
"attaching_conditions_to_tables": {
"original_condition": null,
"attached_conditions_computation": [
] /* attached_conditions_computation */,
"attached_conditions_summary": [
{
"table": "`t1`",
"attached": null
}
] /* attached_conditions_summary */
} /* attaching_conditions_to_tables */
},
{
"clause_processing": {
"clause": "ORDER BY",
"original_clause": "`t1`.`gc`",
"items": [
{
"item": "`t1`.`gc`"
}
] /* items */,
"resulting_clause_is_simple": true,
"resulting_clause": "`t1`.`gc`"
} /* clause_processing */
},
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "ORDER BY",
"steps": [
] /* steps */,
"index_order_summary": {
"table": "`t1`",
"index_provides_order": false,
"order_direction": "undefined",
"index": "unknown",
"plan_changed": false
} /* index_order_summary */
} /* reconsidering_access_paths_for_index_ordering */
},
{
"refine_plan": [
{
"table": "`t1`"
}
] /* refine_plan */
}
] /* steps */
} /* join_optimization */
},
{
"join_explain": {
"select#": 1,
"steps": [
] /* steps */
} /* join_explain */
}
] /* steps */
} 0 0
EXPLAIN SELECT * FROM t1 IGNORE KEY FOR ORDER BY(PRIMARY) ORDER BY f1 + 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 100.00 Using filesort
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` IGNORE INDEX FOR ORDER BY (PRIMARY) order by (`test`.`t1`.`f1` + 1)
# Check that GROUP BY could be optimized
SELECT f1 + 1, MAX(GC) FROM t1 GROUP BY f1 + 1;
f1 + 1 MAX(GC)
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
EXPLAIN SELECT f1 + 1, MAX(GC) FROM t1 GROUP BY f1 + 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL PRIMARY NULL NULL NULL 10 100.00 Using temporary; Using filesort
Warnings:
Note 1003 /* select#1 */ select (`test`.`t1`.`f1` + 1) AS `f1 + 1`,max(`test`.`t1`.`gc`) AS `MAX(GC)` from `test`.`t1` group by `test`.`t1`.`gc`
SELECT * FROM information_schema.OPTIMIZER_TRACE;
QUERY TRACE MISSING_BYTES_BEYOND_MAX_MEM_SIZE INSUFFICIENT_PRIVILEGES
EXPLAIN SELECT f1 + 1, MAX(GC) FROM t1 GROUP BY f1 + 1 {
"steps": [
{
"join_preparation": {
"select#": 1,
"steps": [
{
"expanded_query": "/* select#1 */ select (`t1`.`f1` + 1) AS `f1 + 1`,max(`t1`.`gc`) AS `MAX(GC)` from `t1` group by (`t1`.`f1` + 1)"
}
] /* steps */
} /* join_preparation */
},
{
"join_optimization": {
"select#": 1,
"steps": [
{
"substitute_generated_columns": {
"resulting_GROUP_BY": "`t1`.`gc`"
} /* substitute_generated_columns */
},
{
"table_dependencies": [
{
"table": "`t1`",
"row_may_be_null": false,
"map_bit": 0,
"depends_on_map_bits": [
] /* depends_on_map_bits */
}
] /* table_dependencies */
},
{
"rows_estimation": [
{
"table": "`t1`",
"const_keys_added": {
"keys": [
"PRIMARY"
] /* keys */,
"cause": "group_by"
} /* const_keys_added */,
"range_analysis": {
"table_scan": {
"rows": 10,
"cost": 6.122
} /* table_scan */,
"potential_range_indexes": [
{
"index": "PRIMARY",
"usable": true,
"key_parts": [
"gc"
] /* key_parts */
}
] /* potential_range_indexes */,
"group_index_range": {
"potential_group_range_indexes": [
{
"index": "PRIMARY",
"usable": false,
"cause": "not_covering"
}
] /* potential_group_range_indexes */
} /* group_index_range */
} /* range_analysis */
}
] /* rows_estimation */
},
{
"considered_execution_plans": [
{
"plan_prefix": [
] /* plan_prefix */,
"table": "`t1`",
"best_access_path": {
"considered_access_paths": [
{
"rows_to_scan": 10,
"access_type": "scan",
"resulting_rows": 10,
"cost": 4.022,
"chosen": true,
"use_tmp_table": true
}
] /* considered_access_paths */
} /* best_access_path */,
"condition_filtering_pct": 100,
"rows_for_plan": 10,
"cost_for_plan": 4.022,
"sort_cost": 10,
"new_cost_for_plan": 14.022,
"chosen": true
}
] /* considered_execution_plans */
},
{
"attaching_conditions_to_tables": {
"original_condition": null,
"attached_conditions_computation": [
] /* attached_conditions_computation */,
"attached_conditions_summary": [
{
"table": "`t1`",
"attached": null
}
] /* attached_conditions_summary */
} /* attaching_conditions_to_tables */
},
{
"clause_processing": {
"clause": "GROUP BY",
"original_clause": "`t1`.`gc`",
"items": [
{
"item": "`t1`.`gc`"
}
] /* items */,
"resulting_clause_is_simple": true,
"resulting_clause": "`t1`.`gc`"
} /* clause_processing */
},
{
"reconsidering_access_paths_for_index_ordering": {
"clause": "GROUP BY",
"steps": [
] /* steps */,
"index_order_summary": {
"table": "`t1`",
"index_provides_order": false,
"order_direction": "undefined",
"index": "unknown",
"plan_changed": false
} /* index_order_summary */
} /* reconsidering_access_paths_for_index_ordering */
},
{
"refine_plan": [
{
"table": "`t1`"
}
] /* refine_plan */
}
] /* steps */
} /* join_optimization */
},
{
"join_explain": {
"select#": 1,
"steps": [
] /* steps */
} /* join_explain */
}
] /* steps */
} 0 0
EXPLAIN SELECT f1 + 1, MAX(GC)
FROM t1 IGNORE KEY FOR GROUP BY(PRIMARY) GROUP BY f1 + 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 100.00 Using temporary; Using filesort
Warnings:
Note 1003 /* select#1 */ select (`test`.`t1`.`f1` + 1) AS `f1 + 1`,max(`test`.`t1`.`gc`) AS `MAX(GC)` from `test`.`t1` IGNORE INDEX FOR GROUP BY (PRIMARY) group by (`test`.`t1`.`f1` + 1)
# Shouldn't use index
SELECT * FROM t1 WHERE f1 + 1 > 7.0;
f1 gc
7 8
8 9
9 10
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 7.0;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 10 100.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc` AS `gc` from `test`.`t1` where ((`test`.`t1`.`f1` + 1) > 7.0)
DROP TABLE t1;
# Pick index with proper type
CREATE TABLE t1 (f1 int,
gc_int int AS (f1 + 1) STORED,
gc_date DATE AS (f1 + 1) STORED,
KEY gc_int_idx(gc_int),
KEY gc_date_idx(gc_date));
INSERT INTO t1(f1) VALUES
(030303),(040404),
(050505),(060606),
(010101),(020202),
(030303),(040404),
(050505),(060606),
(010101),(020202),
(090909),(101010),
(010101),(020202),
(070707),(080808);
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
SELECT * FROM t1 WHERE f1 + 1 > 070707;
f1 gc_int gc_date
101010 101011 2010-10-11
70707 70708 2007-07-08
80808 80809 2008-08-09
90909 90910 2009-09-10
# INT column & index should be picked
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > 070707;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL range gc_int_idx gc_int_idx 5 NULL 5 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc_int` AS `gc_int`,`test`.`t1`.`gc_date` AS `gc_date` from `test`.`t1` where (`test`.`t1`.`gc_int` > 70707)
SELECT * FROM t1 WHERE f1 + 1 > CAST(070707 AS DATE);
f1 gc_int gc_date
101010 101011 2010-10-11
70707 70708 2007-07-08
80808 80809 2008-08-09
90909 90910 2009-09-10
# DATE column & index should be picked
EXPLAIN SELECT * FROM t1 WHERE f1 + 1 > CAST(070707 AS DATE);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL range gc_date_idx gc_date_idx 4 NULL 5 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`gc_int` AS `gc_int`,`test`.`t1`.`gc_date` AS `gc_date` from `test`.`t1` where (`test`.`t1`.`gc_date` > <cache>(cast(70707 as date)))
DROP TABLE t1;
#
# BUG#21229846: WL8170: SIGNAL 11 IN JOIN::MAKE_SUM_FUNC_LIST
#
CREATE TABLE t1 (
pk int primary key auto_increment,
col_int_key INTEGER ,
col_int_gc_key INT GENERATED ALWAYS AS (col_int_key + 1) STORED,
KEY col_int_gc_key(col_int_gc_key)
);
INSERT INTO t1 ( col_int_key) VALUES (7);
ANALYZE TABLE t1;
Table Op Msg_type Msg_text
test.t1 analyze status OK
SELECT table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1 JOIN t1 AS table2 ON (table2.pk = table1.pk))
ORDER BY field1, field2;
field1 field2
8 7
EXPLAIN SELECT table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1 JOIN t1 AS table2 ON (table2.pk = table1.pk))
ORDER BY field1, field2;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE table1 NULL system PRIMARY NULL NULL NULL 1 100.00 NULL
1 SIMPLE table2 NULL system PRIMARY NULL NULL NULL 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select ('7' + 1) AS `field1`,'7' AS `field2` from dual where 1 order by `col_int_gc_key`,`field2`
SELECT table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1 JOIN t1 AS table2 ON (table2.pk = table1.pk))
GROUP BY field1, field2;
field1 field2
8 7
EXPLAIN SELECT table1.col_int_key + 1 AS field1, table2.col_int_key AS field2
FROM (t1 AS table1 JOIN t1 AS table2 ON (table2.pk = table1.pk))
GROUP BY field1, field2;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE table1 NULL system PRIMARY NULL NULL NULL 1 100.00 NULL
1 SIMPLE table2 NULL system PRIMARY NULL NULL NULL 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select ('7' + 1) AS `field1`,'7' AS `field2` from dual where 1 group by `col_int_gc_key`,`field2`
DROP TABLE t1;
#
# Bug#21770798 OPTIMIZER DOES NOT USE INDEX FOR GENERATED EXPRESSIONS
# WITH LOGICAL OPERATORS
#
CREATE TABLE t (a INT, b INT,
gc_and INT GENERATED ALWAYS AS (a AND b) STORED,
gc_or INT GENERATED ALWAYS AS (a OR b) STORED,
gc_xor INT GENERATED ALWAYS AS (a XOR b) STORED,
gc_not INT GENERATED ALWAYS AS (NOT a) STORED,
gc_case INT GENERATED ALWAYS AS
(CASE WHEN (a AND b) THEN a ELSE b END) STORED,
INDEX(gc_and), INDEX(gc_or), INDEX(gc_xor), INDEX(gc_not),
INDEX(gc_case));
INSERT INTO t (a, b) VALUES (0, 0), (0, 1), (1, 0), (1, 1);
ANALYZE TABLE t;
Table Op Msg_type Msg_text
test.t analyze status OK
EXPLAIN SELECT a, b FROM t WHERE (a AND b) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_and gc_and 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (`test`.`t`.`gc_and` = 1)
SELECT a, b FROM t WHERE (a AND b) = 1;
a b
1 1
EXPLAIN SELECT a, b FROM t WHERE 1 = (a AND b);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_and gc_and 5 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (1 = `test`.`t`.`gc_and`)
SELECT a, b FROM t WHERE 1 = (a AND b);
a b
1 1
EXPLAIN SELECT a, b FROM t WHERE (a AND b) IN (1, 2, 3);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ALL gc_and NULL NULL NULL 4 75.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (`test`.`t`.`gc_and` in (1,2,3))
SELECT a, b FROM t WHERE (a AND b) IN (1, 2, 3);
a b
1 1
EXPLAIN SELECT a, b FROM t WHERE (a OR b) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_or gc_or 5 const 2 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (`test`.`t`.`gc_or` = 1)
SELECT a, b FROM t WHERE (a OR b) = 1;
a b
0 1
1 0
1 1
EXPLAIN SELECT a, b FROM t WHERE (a OR b) BETWEEN 1 AND 10;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL range gc_or gc_or 5 NULL 2 100.00 Using index condition
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (`test`.`t`.`gc_or` between 1 and 10)
SELECT a, b FROM t WHERE (a OR b) BETWEEN 1 AND 10;
a b
0 1
1 0
1 1
EXPLAIN SELECT a, b FROM t WHERE (a XOR b) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_xor gc_xor 5 const 2 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (`test`.`t`.`gc_xor` = 1)
SELECT a, b FROM t WHERE (a XOR b) = 1;
a b
0 1
1 0
EXPLAIN SELECT a FROM t WHERE (NOT a) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_not gc_not 5 const 2 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a` from `test`.`t` where (`test`.`t`.`gc_not` = 1)
SELECT a FROM t WHERE (NOT a) = 1;
a
0
0
EXPLAIN SELECT a FROM t WHERE (CASE WHEN (a AND b) THEN a ELSE b END) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ref gc_case gc_case 5 const 2 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a` from `test`.`t` where (`test`.`t`.`gc_case` = 1)
SELECT a FROM t WHERE (CASE WHEN (a AND b) THEN a ELSE b END) = 1;
a
0
1
EXPLAIN SELECT a, b FROM t WHERE 1 = (b AND a);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ALL NULL NULL NULL NULL 4 100.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (1 = (`test`.`t`.`b` and `test`.`t`.`a`))
SELECT a, b FROM t WHERE 1 = (b AND a);
a b
1 1
EXPLAIN SELECT a, b FROM t WHERE 1 = (b OR a);
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t NULL ALL NULL NULL NULL NULL 4 100.00 Using where
Note 1003 /* select#1 */ select `test`.`t`.`a` AS `a`,`test`.`t`.`b` AS `b` from `test`.`t` where (1 = (`test`.`t`.`b` or `test`.`t`.`a`))
Warnings:
SELECT a, b FROM t WHERE 1 = (b OR a);
a b
0 1
1 0
1 1
DROP TABLE t;
#
# Bug#21854241: QUERY USING JSON_EXTRACT() RETURNS WRONG RESULT
# AFTER ADDING VIRTUAL INDEX
#
CREATE TABLE employees (
data JSON,
name1 VARCHAR(30) AS (JSON_EXTRACT(data, "$.name")) STORED,
name2 VARCHAR(30) AS (JSON_UNQUOTE(JSON_EXTRACT(data, "$.name"))) STORED
);
INSERT INTO employees (data) VALUES('{"id": 1, "name": "Jane"}');
INSERT INTO employees (data) VALUES('{"id": 2, "name": "Joe"}');
ANALYZE TABLE employees;
Table Op Msg_type Msg_text
test.employees analyze status OK
EXPLAIN SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE employees NULL ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`employees`.`data` AS `data`,`test`.`employees`.`name1` AS `name1`,`test`.`employees`.`name2` AS `name2` from `test`.`employees` where (json_extract(`test`.`employees`.`data`,'$.name') = 'Jane')
SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
data name1 name2
{"id": 1, "name": "Jane"} "Jane" Jane
ALTER TABLE employees ADD INDEX name_idx1(name1);
ANALYZE TABLE employees;
Table Op Msg_type Msg_text
test.employees analyze status OK
EXPLAIN SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE employees NULL ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 /* select#1 */ select `test`.`employees`.`data` AS `data`,`test`.`employees`.`name1` AS `name1`,`test`.`employees`.`name2` AS `name2` from `test`.`employees` where (json_extract(`test`.`employees`.`data`,'$.name') = 'Jane')
SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
data name1 name2
{"id": 1, "name": "Jane"} "Jane" Jane
ALTER TABLE employees ADD INDEX name_idx2(name2);
ANALYZE TABLE employees;
Table Op Msg_type Msg_text
test.employees analyze status OK
EXPLAIN SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE employees NULL ref name_idx2 name_idx2 33 const 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select `test`.`employees`.`data` AS `data`,`test`.`employees`.`name1` AS `name1`,`test`.`employees`.`name2` AS `name2` from `test`.`employees` where (`test`.`employees`.`name2` = 'Jane')
SELECT * FROM employees WHERE JSON_EXTRACT(data, '$.name') = 'Jane';
data name1 name2
{"id": 1, "name": "Jane"} "Jane" Jane
DROP TABLE employees;
#
# Bug#22077611 UPDATE .. WHERE JSON_EXTRACT(..) = '..' NOT USING
# VIRTUAL COL INDEX
#
CREATE TABLE t(a INT, b INT, gc INT GENERATED ALWAYS AS (a+1) STORED, KEY(gc));
INSERT INTO t(a) VALUES (1), (2), (3), (4), (5), (1), (2), (3), (4), (5);
ANALYZE TABLE t;
Table Op Msg_type Msg_text
test.t analyze status OK
EXPLAIN UPDATE t SET b = 10 WHERE (a+1) = 3;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 UPDATE t NULL range gc gc 5 const 2 100.00 Using where
UPDATE t SET b = 10 WHERE (a+1) = 3;
SELECT * FROM t ORDER BY a, b;
a b gc
1 NULL 2
1 NULL 2
2 10 3
2 10 3
3 NULL 4
3 NULL 4
4 NULL 5
4 NULL 5
5 NULL 6
5 NULL 6
ANALYZE TABLE t;
Table Op Msg_type Msg_text
test.t analyze status OK
EXPLAIN UPDATE t SET b = 9 ORDER BY (a+1) LIMIT 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 UPDATE t NULL index NULL gc 5 NULL 1 100.00 Using temporary
UPDATE t SET b = 9 ORDER BY (a+1) LIMIT 1;
SELECT * FROM t ORDER BY a, b;
a b gc
1 NULL 2
1 9 2
2 10 3
2 10 3
3 NULL 4
3 NULL 4
4 NULL 5
4 NULL 5
5 NULL 6
5 NULL 6
ANALYZE TABLE t;
Table Op Msg_type Msg_text
test.t analyze status OK
EXPLAIN DELETE FROM t WHERE (a+1) = 2;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 DELETE t NULL range gc gc 5 const 2 100.00 Using where
DELETE FROM t WHERE (a+1) = 2;
SELECT * FROM t ORDER BY a, b;
a b gc
2 10 3
2 10 3
3 NULL 4
3 NULL 4
4 NULL 5
4 NULL 5
5 NULL 6
5 NULL 6
ANALYZE TABLE t;
Table Op Msg_type Msg_text
test.t analyze status OK
EXPLAIN DELETE FROM t ORDER BY (a+1) LIMIT 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 DELETE t NULL index NULL gc 5 NULL 1 100.00 NULL
DELETE FROM t ORDER BY (a+1) LIMIT 1;
SELECT * FROM t ORDER BY a, b;
a b gc
2 10 3
3 NULL 4
3 NULL 4
4 NULL 5
4 NULL 5
5 NULL 6
5 NULL 6
DROP TABLE t;
#
# Bug#22810883: ASSERTION FAILED:
# !(USED_TABS & (~READ_TABLES & ~FILTER_FOR_TABLE))
#
CREATE TABLE t1 (a1 INTEGER GENERATED ALWAYS AS (1 AND 0) STORED,
a2 INTEGER, KEY (a1));
INSERT INTO t1 VALUES ();
CREATE TABLE t2 (b INTEGER);
INSERT INTO t2 VALUES (1);
ANALYZE TABLE t1, t2;
Table Op Msg_type Msg_text
test.t1 analyze status OK
test.t2 analyze status OK
# Used to choose the index on a1 and get wrong results.
EXPLAIN SELECT * FROM t1 WHERE (a2 AND a2) = 0;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
Warnings:
Note 1003 /* select#1 */ select '0' AS `a1`,NULL AS `a2` from dual where ((NULL and NULL) = 0)
SELECT * FROM t1 WHERE (a2 AND a2) = 0;
a1 a2
# Used to get assertion or wrong results.
EXPLAIN SELECT * FROM t1 STRAIGHT_JOIN t2 ON b WHERE (b AND b) = 1;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL system NULL NULL NULL NULL 1 100.00 NULL
1 SIMPLE t2 NULL system NULL NULL NULL NULL 1 100.00 NULL
Warnings:
Note 1003 /* select#1 */ select '0' AS `a1`,NULL AS `a2`,'1' AS `b` from `test`.`t2` where ((('1' and '1') = 1) and '1')
SELECT * FROM t1 STRAIGHT_JOIN t2 ON b WHERE (b AND b) = 1;
a1 a2 b
0 NULL 1
DROP TABLE t1, t2;
#
DROP VIEW IF EXISTS v1,v2;
DROP TABLE IF EXISTS t1,t2,t3;
DROP PROCEDURE IF EXISTS p1;
DROP FUNCTION IF EXISTS f1;
DROP TRIGGER IF EXISTS trg1;
DROP TRIGGER IF EXISTS trg2;
set sql_warnings = 0;