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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
@@ -1,2 +1,2 @@
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	DELETE	t1	NULL	ALL	NULL	NULL	NULL	NULL	1	100.00	Deleting all rows
+1	DELETE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	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
@@ -1,4 +0,0 @@
-id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	no matching row in const table
-2	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
-3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	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
@@ -4,2 +4,2 @@
 1	SIMPLE	t2	NULL	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	100.00	NULL
-1	SIMPLE	t4	NULL	ALL	PRIMARY	NULL	NULL	NULL	7	28.57	Range checked for each record (index map: 0x1)
+1	SIMPLE	t4	NULL	range	PRIMARY	PRIMARY	4	NULL	7	100.00	Range checked for each record (index map: 0x1)
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: EQUAL
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
@@ -1,3 +0,0 @@
-id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	DELETE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
-2	SUBQUERY	t1	NULL	range	a	a	5	NULL	11	100.00	Using index for group-by
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
@@ -1,2 +1,2 @@
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	ref	key1	key1	4	const	4	20.00	Using index condition; Using where; Using filesort
+1	SIMPLE	t1	NULL	ref	key1	key1	4	const	4	100.00	Using index condition; Using where; Using filesort
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: EQUAL
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
@@ -2,2 +2,2 @@
 1	SIMPLE	t1	NULL	system	PRIMARY	NULL	NULL	NULL	1	100.00	Using filesort
-1	SIMPLE	t2	NULL	ref	PRIMARY	PRIMARY	4	const	1	50.00	Using where; Using index
+1	SIMPLE	t2	NULL	ref	PRIMARY	PRIMARY	4	const	1	100.00	Using where; Using index
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
@@ -2,2 +2,2 @@
 1	SIMPLE	a	NULL	ALL	id	NULL	NULL	NULL	10	100.00	NULL
-1	SIMPLE	b	NULL	ref	id	id	4	test.a.id	1	33.33	Using where
+1	SIMPLE	b	NULL	ref	id	id	4	test.a.id	1	100.00	Using where
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
@@ -2,2 +2,2 @@
 1	DELETE	a	NULL	ALL	id	NULL	NULL	NULL	10	100.00	NULL
-1	SIMPLE	b	NULL	ref	id	id	4	test.a.id	1	33.33	Using where
+1	SIMPLE	b	NULL	ref	id	id	4	test.a.id	1	100.00	Using where
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: EQUAL
QUERY: UPDATE t1 LEFT JOIN t2 USING(id) SET s1 = 'b' 
STATUS: EQUAL
QUERY: SELECT * from t1 where a = 1 and b is null order by a desc, b desc 
STATUS: EQUAL
QUERY: SELECT * from t1 where b=1 or b is null order by a 
STATUS: EQUAL
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
@@ -1,2 +1,2 @@
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	ref	a_c,a	a	5	const	1	75.00	Using index condition; Using where; Using filesort
+1	SIMPLE	t1	NULL	ref	a_c,a	a	5	const	1	100.00	Using index condition; Using where; Using filesort
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
@@ -1,2 +1,2 @@
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	NULL	ref	a_c,a	a	5	const	1	75.00	Using index condition; Using where; Using filesort
+1	SIMPLE	t1	NULL	ref	a_c,a	a	5	const	1	100.00	Using index condition; Using where; Using filesort
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
@@ -2,2 +2,2 @@
 1	UPDATE	t1	p5	range	PRIMARY	PRIMARY	4	const	1	100.00	Using where
-2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	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
@@ -2,2 +2,2 @@
 1	SIMPLE	v	NULL	ref	OXLEFT,OXRIGHT,OXROOTID	OXROOTID	34	const	5	100.00	NULL
-1	SIMPLE	s	NULL	ALL	OXLEFT,OXROOTID	NULL	NULL	NULL	6	16.67	Using where; Using join buffer (Block Nested Loop)
+1	SIMPLE	s	NULL	ALL	OXLEFT,OXROOTID	NULL	NULL	NULL	6	83.33	Using where; Using join buffer (Block Nested Loop)
QUERY: SELECT * from t1 where b = (select b from t2 where t1.a = t2.a) 
STATUS: EQUAL
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
@@ -2,2 +2,2 @@
 1	DELETE	t1	NULL	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
-2	DEPENDENT SUBQUERY	t2	NULL	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	NULL
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Plan isn't ready yet
QUERY: SELECT DISTINCT topic FROM t2 WHERE NOT EXISTS(SELECT * FROM t3 WHERE numeropost=topic) 
STATUS: EQUAL
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:planned_single_delete
Diff: EXPLAIN NORMAL vs OTHER
@@ -2,3 +2,3 @@
 1	DELETE	t1	NULL	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	DEPENDENT SUBQUERY	t2	NULL	index_subquery	topic	topic	3	func	2	100.00	Using where; Using index
-3	DEPENDENT SUBQUERY	t3	NULL	system	PRIMARY	NULL	NULL	NULL	1	100.00	NULL
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Plan isn't ready yet
+3	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Plan isn't ready yet
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: EQUAL
QUERY: SELECT t1.pk FROM t1 WHERE t1.col_varchar_key < ALL ( SELECT * FROM v1 ) 
STATUS: EQUAL
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: EQUAL
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
@@ -3,3 +3,3 @@
 1	SIMPLE	alias2	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	20.00	Using where; Using join buffer (Block Nested Loop)
-1	SIMPLE	t1	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	26.66	Range checked for each record (index map: 0x4)
+1	SIMPLE	t1	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	100.00	Range checked for each record (index map: 0x4)
 1	SIMPLE	sq2_alias2	NULL	index	col_int_key	col_int_key	4	NULL	5	100.00	Using where; Using index; End temporary; Using join buffer (Block Nested Loop)
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
@@ -3,3 +3,3 @@
 1	SIMPLE	alias2	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	20.00	Using where; Using join buffer (Block Nested Loop)
-1	SIMPLE	t1	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	26.66	Range checked for each record (index map: 0x4)
+1	SIMPLE	t1	NULL	ALL	col_varchar_key	NULL	NULL	NULL	5	100.00	Range checked for each record (index map: 0x4)
 1	SIMPLE	sq2_alias2	NULL	index	col_int_key	col_int_key	4	NULL	5	100.00	Using where; Using index; End temporary; Using join buffer (Block Nested Loop)
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: EQUAL
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: EQUAL
QUERY: UPDATE t1 join t2 on (t1.a=t2.a) set t1.id=t2.id 
STATUS: EQUAL

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