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|
"WL6369 Explain for Connection"
QUERY: DELETE from t1
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -4,10 +4,3 @@
"select_id": 1,
- "table": {
- "delete": true,
- "table_name": "t1",
- "access_type": "ALL",
- "rows_examined_per_scan": 1,
- "filtered": "100.00",
- "message": "Deleting all rows"
- }
+ "message": "Plan isn't ready yet"
}
QUERY: SELECT * from t1,t2,t3 where t1.a=t2.a AND t2.b=t3.a and t1.b=t3.b
STATUS: EQUAL
QUERY: SELECT 1 FROM ( SELECT 1, 2 FROM DUAL WHERE EXISTS ( SELECT f1 FROM t1 )) AS tt
STATUS:NOT_EQUAL
SYNC_POINT:after_join_optimize
Diff: EXPLAIN NORMAL vs OTHER
@@ -1,28 +0,0 @@
-EXPLAIN
-{
- "query_block": {
- "select_id": 1,
- "message": "no matching row in const table",
- "table": {
- "materialized_from_subquery": {
- "using_temporary_table": true,
- "dependent": false,
- "cacheable": true,
- "query_block": {
- "select_id": 2,
- "message": "Impossible WHERE",
- "optimized_away_subqueries": [
- {
- "dependent": false,
- "cacheable": true,
- "query_block": {
- "select_id": 3,
- "message": "no matching row in const table"
- }
- }
- ]
- }
- }
- }
- }
-}
QUERY: SELECT STRAIGHT_JOIN * FROM t3 JOIN t1 ON t3.a=t1.a JOIN t2 ON t3.a=t2.a JOIN t4 WHERE t4.a IN (t1.b, t2.b)
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -98,3 +98,3 @@
"table_name": "t4",
- "access_type": "ALL",
+ "access_type": "range",
"possible_keys": [
@@ -102,5 +102,10 @@
],
+ "key": "PRIMARY",
+ "used_key_parts": [
+ "a"
+ ],
+ "key_length": "4",
"rows_examined_per_scan": 7,
- "rows_produced_per_join": 8,
- "filtered": "28.57",
+ "rows_produced_per_join": 28,
+ "filtered": "100.00",
"range_checked_for_each_record": "index map: 0x1",
@@ -108,5 +113,5 @@
"read_cost": "0.50",
- "eval_cost": "0.80",
+ "eval_cost": "2.80",
"prefix_cost": "7.01",
- "data_read_per_join": "128"
+ "data_read_per_join": "448"
},
QUERY: SELECT STRAIGHT_JOIN (SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b)) FROM t3, t1, t2 WHERE t3.a=t1.a AND t3.a=t2.a
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -116,2 +116,3 @@
"filtered": "28.57",
+ "using_where": true,
"using_index": true,
@@ -125,4 +126,3 @@
"a"
- ],
- "attached_condition": "(`test`.`t4`.`a` in (`test`.`t1`.`b`,`test`.`t2`.`b`))"
+ ]
}
QUERY: SELECT * FROM (SELECT max(b), a FROM t1 GROUP BY a) b
STATUS: EQUAL
QUERY: DELETE FROM t3 WHERE (SELECT MAX(b) FROM t1 GROUP BY a HAVING a < 2) > 10000
STATUS:NOT_EQUAL
SYNC_POINT:planned_single_delete
Diff: EXPLAIN NORMAL vs OTHER
@@ -1,48 +0,0 @@
-EXPLAIN
-{
- "query_block": {
- "select_id": 1,
- "message": "Impossible WHERE",
- "optimized_away_subqueries": [
- {
- "dependent": false,
- "cacheable": true,
- "query_block": {
- "select_id": 2,
- "cost_info": {
- "query_cost": "3.00"
- },
- "grouping_operation": {
- "using_filesort": false,
- "table": {
- "table_name": "t1",
- "access_type": "range",
- "possible_keys": [
- "a"
- ],
- "key": "a",
- "used_key_parts": [
- "a"
- ],
- "key_length": "5",
- "rows_examined_per_scan": 11,
- "rows_produced_per_join": 11,
- "filtered": "100.00",
- "using_index_for_group_by": true,
- "cost_info": {
- "read_cost": "1.90",
- "eval_cost": "1.10",
- "prefix_cost": "3.00",
- "data_read_per_join": "176"
- },
- "used_columns": [
- "a",
- "b"
- ]
- }
- }
- }
- }
- ]
- }
-}
QUERY: SELECT * FROM t1 WHERE key1=1130 AND col1 IS NULL ORDER BY text1
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -24,9 +24,10 @@
"rows_examined_per_scan": 4,
- "rows_produced_per_join": 0,
- "filtered": "20.00",
+ "rows_produced_per_join": 4,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "0.50",
- "eval_cost": "0.08",
+ "eval_cost": "0.40",
"prefix_cost": "0.90",
- "data_read_per_join": "38"
+ "data_read_per_join": "192"
},
@@ -42,4 +43,3 @@
"col4"
- ],
- "attached_condition": "(`test`.`t1`.`col1` is null)"
+ ]
}
QUERY: SELECT t1.c2 FROM t2 STRAIGHT_JOIN t1 ON t1.c1 < t2.c1
STATUS: EQUAL
QUERY: SELECT STRAIGHT_JOIN * FROM (t1 LEFT JOIN (t2 LEFT JOIN (t3 LEFT OUTER JOIN t4 ON t3.c1 <= t4.c1_key) ON t2.c1 = t4.c3) ON t1.c1 = t4.c2) RIGHT OUTER JOIN t5 ON t2.c2 <= t5.c1 WHERE t1.i1 = 1
STATUS:NOT_EQUAL
SYNC_POINT:after_join_optimize
Diff: EXPLAIN NORMAL vs OTHER
@@ -34,2 +34,3 @@
"filtered": "10.00",
+ "using_where": true,
"using_join_buffer": "hash join",
@@ -45,4 +46,3 @@
"c1"
- ],
- "attached_condition": "(`test`.`t1`.`i1` = 1)"
+ ]
}
@@ -56,2 +56,3 @@
"filtered": "33.33",
+ "using_where": true,
"using_join_buffer": "hash join",
@@ -67,4 +68,3 @@
"c2"
- ],
- "attached_condition": "(`test`.`t2`.`c2` <= `test`.`t5`.`c1`)"
+ ]
}
QUERY: SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1 WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL GROUP BY t2.f1, t2.f2
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -47,4 +47,5 @@
"rows_examined_per_scan": 1,
- "rows_produced_per_join": 0,
- "filtered": "50.00",
+ "rows_produced_per_join": 1,
+ "filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -52,5 +53,5 @@
"read_cost": "0.25",
- "eval_cost": "0.05",
+ "eval_cost": "0.10",
"prefix_cost": "0.35",
- "data_read_per_join": "8"
+ "data_read_per_join": "16"
},
@@ -59,4 +60,3 @@
"f2"
- ],
- "attached_condition": "(`test`.`t2`.`f2` is not null)"
+ ]
}
QUERY: SELECT * FROM t3 AS a INNER JOIN t3 AS b USING (id) WHERE a.ref < b.ref
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -46,9 +46,10 @@
"rows_examined_per_scan": 1,
- "rows_produced_per_join": 3,
- "filtered": "33.33",
+ "rows_produced_per_join": 10,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "2.50",
- "eval_cost": "0.33",
+ "eval_cost": "1.00",
"prefix_cost": "4.76",
- "data_read_per_join": "53"
+ "data_read_per_join": "160"
},
@@ -57,4 +58,3 @@
"ref"
- ],
- "attached_condition": "(`test`.`a`.`ref` < `test`.`b`.`ref`)"
+ ]
}
QUERY: DELETE FROM a USING t3 AS a INNER JOIN t3 AS b USING (id) WHERE a.ref < b.ref
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -47,9 +47,10 @@
"rows_examined_per_scan": 1,
- "rows_produced_per_join": 3,
- "filtered": "33.33",
+ "rows_produced_per_join": 10,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "2.50",
- "eval_cost": "0.33",
+ "eval_cost": "1.00",
"prefix_cost": "4.76",
- "data_read_per_join": "53"
+ "data_read_per_join": "160"
},
@@ -58,4 +59,3 @@
"ref"
- ],
- "attached_condition": "(`test`.`a`.`ref` < `test`.`b`.`ref`)"
+ ]
}
QUERY: SELECT * from t2 left outer join t1 using (n)
STATUS: EQUAL
QUERY: DELETE t1,t2 from t2 left outer join t1 using (n)
STATUS: EQUAL
QUERY: UPDATE t1 left join t2 on t1.a=t2.a set t1.b=2, t2.b=2 where t1.b=1 and t2.b=1 or t2.a is NULL
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -36,2 +36,3 @@
"filtered": "75.00",
+ "using_where": true,
"cost_info": {
@@ -45,4 +46,3 @@
"b"
- ],
- "attached_condition": "(<if>(found_match(t2), (((`test`.`t2`.`b` = 1) and (`test`.`t1`.`b` = 1)) or (`test`.`t2`.`a` is null)), true) and <if>(is_not_null_compl(t2), (`test`.`t2`.`a` = `test`.`t1`.`a`), true))"
+ ]
}
QUERY: UPDATE t1 LEFT JOIN t2 USING(id) SET s1 = 'b'
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -40,2 +40,3 @@
"filtered": "100.00",
+ "using_where": true,
"cost_info": {
@@ -49,4 +50,3 @@
"s1"
- ],
- "attached_condition": "<if>(is_not_null_compl(t2), (`test`.`t2`.`id` = `test`.`t1`.`id`), true)"
+ ]
}
QUERY: SELECT * from t1 where a = 1 and b is null order by a desc, b desc
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -28,2 +28,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -39,4 +40,3 @@
"c"
- ],
- "attached_condition": "(`test`.`t1`.`b` is null)"
+ ]
}
QUERY: SELECT * from t1 where b=1 or b is null order by a
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -26,3 +26,3 @@
"filtered": "100.00",
- "index_condition": "((`test`.`t1`.`b` = 1) or (`test`.`t1`.`b` is null))",
+ "index_condition": true,
"cost_info": {
QUERY: SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -25,9 +25,10 @@
"rows_examined_per_scan": 1,
- "rows_produced_per_join": 0,
- "filtered": "75.00",
+ "rows_produced_per_join": 1,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "0.25",
- "eval_cost": "0.08",
+ "eval_cost": "0.10",
"prefix_cost": "0.35",
- "data_read_per_join": "12"
+ "data_read_per_join": "16"
},
@@ -36,4 +37,3 @@
"c"
- ],
- "attached_condition": "((`test`.`t1`.`c` = 10) or (`test`.`t1`.`c` is null))"
+ ]
}
QUERY: SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -25,9 +25,10 @@
"rows_examined_per_scan": 1,
- "rows_produced_per_join": 0,
- "filtered": "75.00",
+ "rows_produced_per_join": 1,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "0.25",
- "eval_cost": "0.08",
+ "eval_cost": "0.10",
"prefix_cost": "0.35",
- "data_read_per_join": "12"
+ "data_read_per_join": "16"
},
@@ -36,4 +37,3 @@
"c"
- ],
- "attached_condition": "((`test`.`t1`.`c` = 10) or (`test`.`t1`.`c` is null))"
+ ]
}
QUERY: UPDATE t1 SET b = CONCAT(b, ', max(a) in t2: ', (SELECT MAX(a) FROM t2)) WHERE a = 5
STATUS:NOT_EQUAL
SYNC_POINT:planned_single_update
Diff: EXPLAIN NORMAL vs OTHER
@@ -24,3 +24,3 @@
"filtered": "100.00",
- "attached_condition": "(`test`.`t1`.`a` = 5)"
+ "using_where": true
},
@@ -32,3 +32,3 @@
"select_id": 2,
- "message": "Select tables optimized away"
+ "message": "Plan isn't ready yet"
}
QUERY: UPDATE t1, t2 SET t1.b = CONCAT(t1.b, ', t2.b:', t2.b), t2.b = CONCAT(t2.b, ', t1.b:', t1.b) WHERE t2.b = t1.b and t2.a = 4
STATUS: EQUAL
QUERY: SELECT s.oxid FROM t1 v, t1 s WHERE s.oxrootid = 'd8c4177d09f8b11f5.52725521' AND v.oxrootid ='d8c4177d09f8b11f5.52725521' AND s.oxleft > v.oxleft AND s.oxleft < v.oxright
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -58,9 +58,10 @@
"rows_examined_per_scan": 5,
- "rows_produced_per_join": 4,
- "filtered": "16.67",
+ "rows_produced_per_join": 25,
+ "filtered": "100.00",
+ "using_where": true,
"cost_info": {
"read_cost": "2.50",
- "eval_cost": "0.42",
+ "eval_cost": "2.50",
"prefix_cost": "6.00",
- "data_read_per_join": "466"
+ "data_read_per_join": "2K"
},
@@ -70,4 +71,3 @@
"OXROOTID"
- ],
- "attached_condition": "((`test`.`s`.`OXLEFT` > `test`.`v`.`OXLEFT`) and (`test`.`s`.`OXLEFT` < `test`.`v`.`OXRIGHT`))"
+ ]
}
QUERY: SELECT * from t1 where b = (select b from t2 where t1.a = t2.a)
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -13,2 +13,3 @@
"filtered": "100.00",
+ "using_where": true,
"cost_info": {
@@ -23,3 +24,2 @@
],
- "attached_condition": "(`test`.`t1`.`b` = (/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))",
"attached_subqueries": [
QUERY: DELETE from t1 where b = (select b from t2 where t1.a = t2.a)
STATUS:NOT_EQUAL
SYNC_POINT:planned_single_delete
Diff: EXPLAIN NORMAL vs OTHER
@@ -10,40 +10,10 @@
"filtered": "100.00",
- "attached_condition": "(`test`.`t1`.`b` = (/* select#2 */ select `test`.`t2`.`b` from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))",
+ "using_where": true,
"attached_subqueries": [
{
- "dependent": true,
- "cacheable": false,
+ "dependent": false,
+ "cacheable": true,
"query_block": {
"select_id": 2,
- "cost_info": {
- "query_cost": "0.35"
- },
- "table": {
- "table_name": "t2",
- "access_type": "eq_ref",
- "possible_keys": [
- "PRIMARY"
- ],
- "key": "PRIMARY",
- "used_key_parts": [
- "a"
- ],
- "key_length": "4",
- "ref": [
- "test.t1.a"
- ],
- "rows_examined_per_scan": 1,
- "rows_produced_per_join": 1,
- "filtered": "100.00",
- "cost_info": {
- "read_cost": "0.25",
- "eval_cost": "0.10",
- "prefix_cost": "0.35",
- "data_read_per_join": "16"
- },
- "used_columns": [
- "a",
- "b"
- ]
- }
+ "message": "Plan isn't ready yet"
}
QUERY: SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE numeropost=topic)
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -57,2 +57,3 @@
"filtered": "100.00",
+ "using_where": true,
"not_exists": true,
@@ -67,4 +68,3 @@
"numeropost"
- ],
- "attached_condition": "<if>(is_not_null_compl(t3), <if>(found_match(t3), false, true), true)"
+ ]
}
QUERY: DELETE FROM t1 WHERE topic IN (SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE numeropost=topic))
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -14,2 +14,3 @@
"filtered": "100.00",
+ "using_where": true,
"cost_info": {
@@ -23,3 +24,2 @@
],
- "attached_condition": "<in_optimizer>(`test`.`t1`.`topic`,<exists>(/* select#2 */ select `test`.`t2`.`topic` from `test`.`t2` anti join (`test`.`t3`) on((`test`.`t3`.`numeropost` = `test`.`t2`.`topic`)) where (<cache>(`test`.`t1`.`topic`) = `test`.`t2`.`topic`)))",
"attached_subqueries": [
@@ -82,2 +82,3 @@
"filtered": "100.00",
+ "using_where": true,
"not_exists": true,
@@ -92,4 +93,3 @@
"numeropost"
- ],
- "attached_condition": "<if>(is_not_null_compl(t3), <if>(found_match(t3), false, true), true)"
+ ]
}
QUERY: SELECT cns.id, cns.max_anno_dep, cns.max_anno_dep = (SELECT s.anno_dep FROM t1 AS s WHERE s.id_cns = cns.id ORDER BY s.anno_dep DESC LIMIT 1) AS PIPPO FROM t2 AS cns
STATUS: EQUAL
QUERY: SELECT (SELECT 1 FROM t1 WHERE t1.a=t2.a ORDER BY t1.b LIMIT 1) AS d1 FROM t2
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -51,2 +51,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -61,4 +62,3 @@
"b"
- ],
- "attached_condition": "(`test`.`t1`.`a` = `test`.`t2`.`a`)"
+ ]
}
QUERY: SELECT t1.pk FROM t1 WHERE t1.col_varchar_key < ALL ( SELECT * FROM v1 )
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -11,3 +11,3 @@
"select_id": 2,
- "message": "Not optimized, outer query is empty",
+ "message": "Plan isn't ready yet",
"table": {
@@ -20,3 +20,3 @@
"using_temporary_table": true,
- "message": "Not optimized, outer query is empty",
+ "message": "Plan isn't ready yet",
"query_specifications": [
@@ -27,3 +27,3 @@
"select_id": 3,
- "message": "Not optimized, outer query is empty"
+ "message": "Plan isn't ready yet"
}
@@ -35,3 +35,3 @@
"select_id": 4,
- "message": "Not optimized, outer query is empty"
+ "message": "Plan isn't ready yet"
}
QUERY: SELECT t1.a, (SELECT 1 FROM t2 WHERE t2.b=t3.c AND t2.c=t1.a ORDER BY t2.d LIMIT 1) AS incorrect FROM t1, t3 WHERE t3.b=t1.a
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -25,2 +25,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -35,4 +36,3 @@
"c"
- ],
- "attached_condition": "(`test`.`t3`.`b` is not null)"
+ ]
}
QUERY: SELECT alias2.col_varchar_nokey FROM v1 AS alias1 RIGHT JOIN t1 AS alias2 ON 1 WHERE alias2.col_varchar_key IN ( SELECT sq2_alias1.col_varchar_nokey FROM v1 AS sq2_alias1 LEFT JOIN t1 AS sq2_alias2 ON (sq2_alias2.col_int_key = sq2_alias1.pk) WHERE sq2_alias1.pk != alias1.col_int_key AND sq2_alias1.col_varchar_key > alias1.col_varchar_key )
STATUS:NOT_EQUAL
SYNC_POINT:after_join_optimize
Diff: EXPLAIN NORMAL vs OTHER
@@ -43,2 +43,3 @@
"filtered": "20.00",
+ "using_where": true,
"using_join_buffer": "hash join",
@@ -53,4 +54,3 @@
"col_varchar_nokey"
- ],
- "attached_condition": "(`test`.`alias2`.`col_varchar_key` = `test`.`t1`.`col_varchar_nokey`)"
+ ]
}
@@ -66,3 +66,3 @@
"rows_produced_per_join": 6,
- "filtered": "26.66",
+ "filtered": "100.00",
"range_checked_for_each_record": "index map: 0x4",
@@ -98,2 +98,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -107,4 +108,3 @@
"col_int_key"
- ],
- "attached_condition": "<if>(is_not_null_compl(sq2_alias2), (`test`.`sq2_alias2`.`col_int_key` = `test`.`t1`.`pk`), true)"
+ ]
}
QUERY: SELECT alias2.col_varchar_nokey FROM t1 AS alias2 LEFT JOIN v1 AS alias1 ON 1 WHERE alias2.col_varchar_key IN ( SELECT sq2_alias1.col_varchar_nokey FROM v1 AS sq2_alias1 LEFT JOIN t1 AS sq2_alias2 ON (sq2_alias2.col_int_key = sq2_alias1.pk) WHERE sq2_alias1.pk != alias1.col_int_key AND sq2_alias1.col_varchar_key > alias1.col_varchar_key )
STATUS:NOT_EQUAL
SYNC_POINT:after_join_optimize
Diff: EXPLAIN NORMAL vs OTHER
@@ -43,2 +43,3 @@
"filtered": "20.00",
+ "using_where": true,
"using_join_buffer": "hash join",
@@ -53,4 +54,3 @@
"col_varchar_nokey"
- ],
- "attached_condition": "(`test`.`alias2`.`col_varchar_key` = `test`.`t1`.`col_varchar_nokey`)"
+ ]
}
@@ -66,3 +66,3 @@
"rows_produced_per_join": 6,
- "filtered": "26.66",
+ "filtered": "100.00",
"range_checked_for_each_record": "index map: 0x4",
@@ -98,2 +98,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -107,4 +108,3 @@
"col_int_key"
- ],
- "attached_condition": "<if>(is_not_null_compl(sq2_alias2), (`test`.`sq2_alias2`.`col_int_key` = `test`.`t1`.`pk`), true)"
+ ]
}
QUERY: SELECT d FROM (SELECT * FROM t2) AS a2 RIGHT JOIN (SELECT * FROM t1) AS a1 ON c = a WHERE d LIKE '_' ORDER BY d
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -38,2 +38,3 @@
"filtered": "50.00",
+ "using_where": true,
"cost_info": {
@@ -47,4 +48,3 @@
"d"
- ],
- "attached_condition": "((`test`.`t2`.`c` = NULL) and (`test`.`t2`.`d` like '_'))"
+ ]
}
QUERY: SELECT (SELECT rs.t2_id FROM t2 rs WHERE rs.t1_id= (SELECT lt.t1_id FROM t1 lt WHERE lt.t3_id=a.t3_id) ORDER BY b DESC LIMIT 1) from t3 AS a
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -51,2 +51,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -63,3 +64,2 @@
],
- "attached_condition": "(`test`.`rs`.`t1_id` = (/* select#3 */ select NULL from `test`.`t1` `lt` where multiple equal('3', NULL)))",
"attached_subqueries": [
QUERY: UPDATE t1 join t2 on (t1.a=t2.a) set t1.id=t2.id
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -15,2 +15,3 @@
"filtered": "100.00",
+ "using_where": true,
"cost_info": {
@@ -24,4 +25,3 @@
"a"
- ],
- "attached_condition": "(`test`.`t2`.`a` is not null)"
+ ]
}
QUERY: SELECT DISTINCT alias2.col_int AS field1 , alias2.col_int AS field2 FROM a1 AS alias1 LEFT JOIN aa1 AS alias2 ON alias1.pk = alias2.pk WHERE ( alias1.col_int = 8 OR alias1 .pk <= alias1.col_int ) GROUP BY field1, field2 ORDER BY field1, field2 DESC
STATUS: EQUAL
QUERY: SELECT DISTINCT alias1.pk AS field1 FROM f1 AS alias1 LEFT JOIN a2 AS alias2 ON alias1.col_varchar_1024_latin1_key = alias2 .col_varchar_10_utf8_key WHERE alias1.pk IN (5, 5) GROUP BY field1 HAVING field1 <= 3
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -47,3 +47,3 @@
"filtered": "100.00",
- "index_condition": "(`test`.`alias1`.`pk` in (5,5))",
+ "index_condition": true,
"cost_info": {
QUERY: SELECT alias1.pk AS field1 FROM h2 AS alias1 LEFT JOIN aa3 AS alias2 ON alias1.pk = alias2.col_int_key WHERE alias1.pk <> 9 GROUP BY field1 ORDER BY field1 LIMIT 1 OFFSET 3
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -27,2 +27,3 @@
"filtered": "100.00",
+ "using_where": true,
"using_index": true,
@@ -36,4 +37,3 @@
"pk"
- ],
- "attached_condition": "(`test`.`alias1`.`pk` <> 9)"
+ ]
}
QUERY: SELECT alias1.pk AS field1 FROM e1 AS alias1 RIGHT JOIN cc2 AS alias2 ON alias1.col_int = alias2.col_int WHERE alias1.col_int_key IN (8)
STATUS:NOT_EQUAL
SYNC_POINT:before_reset_query_plan
Diff: EXPLAIN NORMAL vs OTHER
@@ -44,4 +44,5 @@
"rows_examined_per_scan": 2,
- "rows_produced_per_join": 1,
- "filtered": "50.00",
+ "rows_produced_per_join": 2,
+ "filtered": "100.00",
+ "using_where": true,
"using_join_buffer": "hash join",
@@ -49,5 +50,5 @@
"read_cost": "0.25",
- "eval_cost": "0.10",
+ "eval_cost": "0.20",
"prefix_cost": "0.80",
- "data_read_per_join": "8"
+ "data_read_per_join": "16"
},
@@ -55,4 +56,3 @@
"col_int"
- ],
- "attached_condition": "(`test`.`alias2`.`col_int` = `test`.`alias1`.`col_int`)"
+ ]
}
QUERY: SELECT DISTINCT alias2.pk AS field1, alias2.pk AS field2, alias2.pk AS field3 FROM t1 AS alias1 RIGHT JOIN t2 AS alias2 ON alias1.col_varchar_key = alias2.col_varchar_key WHERE alias1.col_int >alias1.col_int HAVING field3 = 7 ORDER BY field1, field2, field3 LIMIT 10 OFFSET 1
STATUS: EQUAL
|
