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#
# Bug 23333990	PERSISTENT INDEX STATISTICS UPDATE BEFORE
#		TRANSACTION IS COMMITTED
#
"Test 1:- Uncommited delete test"
CREATE TABLE t1 (id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT UNSIGNED NOT NULL,
INDEX (val)) ENGINE=INNODB
STATS_PERSISTENT=1,STATS_AUTO_RECALC=1;
INSERT INTO t1 (val) VALUES (4);
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
INSERT INTO t1 (val) SELECT VAL from t1;
SELECT COUNT(*) FROM t1;
COUNT(*)
262144
Connection 1
START TRANSACTION;
DELETE FROM t1;
SELECT COUNT(*) FROM t1;
Connection Default
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
Test correctly estimates the number of rows as > 20000
even when in other uncommmited transaction
all rows have been deleted.
Connection 1
COUNT(*)
0
commit;
Connection deafult
Test 2:- Insert and rollback test
CREATE TABLE t2 (id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT UNSIGNED NOT NULL,
INDEX (val)) ENGINE=INNODB
STATS_PERSISTENT=1,STATS_AUTO_RECALC=1;
Connection 1
START TRANSACTION;
INSERT INTO t2 (val) VALUES (4);
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
INSERT INTO t2 (val) SELECT VAL from t2;
SELECT COUNT(*) FROM t2;
Connection default
select count(*) from t2;
count(*)
0
analyze table t2;
Table	Op	Msg_type	Msg_text
test.t2	analyze	status	OK
Test correctly estimates the number of rows as > 20000
even when in other uncommited transaction
many rows are inserted.
Connection 1
COUNT(*)
262144
Rollback the insert
rollback;
Connection default
Test correctly estimates the number of rows as 1
after rollback.
DROP TABLE t1,t2;

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