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#
# Bug#14007109 RECURSIVE ACQ OF BLOCK LOCK IN S MODE, STATS UPDATE ASRT !RW_LOCK_OWN(LOCK, 352)
#
-- source include/have_innodb.inc
# The assertion only fails in debug versions, so no need to test in non-debug
-- source include/have_debug.inc
CREATE TABLE bug14007109 (
a VARCHAR(512), PRIMARY KEY (a)
) ENGINE=INNODB STATS_PERSISTENT=1;
BEGIN;
-- disable_query_log
# As of the time this test is added, 854 pages do not trigger the assert,
# while 855 do. We use a bigger number here just in case. What is needed
# is to have a btree with 3 levels, where the level in the middle contains
# two (or more) pages. The persistent stats code crawls that level twice
# in the same mtr:
# dict_stats_analyze_index()
# start mtr
# dict_stats_analyze_index_level(mtr)
# traverse the level (leaves the last page in the middle level S-latched)
# dict_stats_analyze_index_for_n_prefix(mtr)
# traverse the level (would try to S-latch the last page)
# commit mtr
let $i=900;
while ($i) {
eval INSERT INTO bug14007109 VALUES (REPEAT(1000+$i, 128));
dec $i;
}
-- enable_query_log
COMMIT;
# We get a (debug) assertion failure here if the bug exists
ANALYZE TABLE bug14007109;
DROP TABLE bug14007109;