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-rw-r--r--mysql-test/suite/innodb/t/innodb-stats-modified-counter.test28
1 files changed, 28 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/t/innodb-stats-modified-counter.test b/mysql-test/suite/innodb/t/innodb-stats-modified-counter.test
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+++ b/mysql-test/suite/innodb/t/innodb-stats-modified-counter.test
@@ -0,0 +1,28 @@
+-- source include/have_innodb.inc
+
+#
+# MDEV-8297: information_schema.innodb_sys_tablestats.modified_counter doesn't change on UPDATE
+#
+
+set global innodb_stats_auto_recalc=off;
+
+CREATE TABLE t1 (i int) ENGINE=InnoDB;
+
+SELECT NAME, STATS_INITIALIZED, NUM_ROWS, MODIFIED_COUNTER FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
+
+INSERT INTO t1 VALUES (1);
+INSERT INTO t1 VALUES (2);
+
+SELECT NAME, STATS_INITIALIZED, NUM_ROWS, MODIFIED_COUNTER FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
+
+DELETE FROM t1 WHERE i = 1;
+
+SELECT NAME, STATS_INITIALIZED, NUM_ROWS, MODIFIED_COUNTER FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
+
+UPDATE t1 SET i = 4 WHERE i = 2;
+
+SELECT NAME, STATS_INITIALIZED, NUM_ROWS, MODIFIED_COUNTER FROM INFORMATION_SCHEMA.INNODB_SYS_TABLESTATS WHERE NAME = 'test/t1';
+
+DROP TABLE t1;
+
+set global innodb_stats_auto_recalc=default;