Import innodb.virtual_stats from MySQL 5.7

mysql-test/suite/innodb/r/virtual_stats.result

+CREATE TABLE t (
+a INT,
+b INT,
+c INT GENERATED ALWAYS AS(a+b),
+d INT GENERATED ALWAYS AS(a+b+b),
+KEY idxa (a),
+KEY vidxcd (c, d)
+) ENGINE=INNODB;
+INSERT INTO t (a,b) VALUES (1, 2);
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxa	n_diff_pfx01	a
+idxa	n_diff_pfx02	a,DB_ROW_ID
+idxa	n_leaf_pages	Number of leaf pages in the index
+idxa	size	Number of pages in the index
+vidxcd	n_diff_pfx01	c
+vidxcd	n_diff_pfx02	c,d
+vidxcd	n_diff_pfx03	c,d,DB_ROW_ID
+vidxcd	n_leaf_pages	Number of leaf pages in the index
+vidxcd	size	Number of pages in the index
+ALTER TABLE t ADD COLUMN e INT GENERATED ALWAYS AS(a+a+b), ADD INDEX idxb (b), ALGORITHM=INPLACE;
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxa	n_diff_pfx01	a
+idxa	n_diff_pfx02	a,DB_ROW_ID
+idxa	n_leaf_pages	Number of leaf pages in the index
+idxa	size	Number of pages in the index
+idxb	n_diff_pfx01	b
+idxb	n_diff_pfx02	b,DB_ROW_ID
+idxb	n_leaf_pages	Number of leaf pages in the index
+idxb	size	Number of pages in the index
+vidxcd	n_diff_pfx01	c
+vidxcd	n_diff_pfx02	c,d
+vidxcd	n_diff_pfx03	c,d,DB_ROW_ID
+vidxcd	n_leaf_pages	Number of leaf pages in the index
+vidxcd	size	Number of pages in the index
+ALTER TABLE t DROP COLUMN c, DROP INDEX idxa, ALGORITHM=INPLACE;
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxb	n_diff_pfx01	b
+idxb	n_diff_pfx02	b,DB_ROW_ID
+idxb	n_leaf_pages	Number of leaf pages in the index
+idxb	size	Number of pages in the index
+vidxcd	n_diff_pfx01	d
+vidxcd	n_diff_pfx02	d,DB_ROW_ID
+vidxcd	n_leaf_pages	Number of leaf pages in the index
+vidxcd	size	Number of pages in the index
+ALTER TABLE t ADD INDEX vidxe (e), ALGORITHM=INPLACE;
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxb	n_diff_pfx01	b
+idxb	n_diff_pfx02	b,DB_ROW_ID
+idxb	n_leaf_pages	Number of leaf pages in the index
+idxb	size	Number of pages in the index
+vidxcd	n_diff_pfx01	d
+vidxcd	n_diff_pfx02	d,DB_ROW_ID
+vidxcd	n_leaf_pages	Number of leaf pages in the index
+vidxcd	size	Number of pages in the index
+vidxe	n_diff_pfx01	e
+vidxe	n_diff_pfx02	e,DB_ROW_ID
+vidxe	n_leaf_pages	Number of leaf pages in the index
+vidxe	size	Number of pages in the index
+ALTER TABLE t ADD COLUMN f INT GENERATED ALWAYS AS(a + a), ADD INDEX vidxf (f), ALGORITHM=INPLACE;
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxb	n_diff_pfx01	b
+idxb	n_diff_pfx02	b,DB_ROW_ID
+idxb	n_leaf_pages	Number of leaf pages in the index
+idxb	size	Number of pages in the index
+vidxcd	n_diff_pfx01	d
+vidxcd	n_diff_pfx02	d,DB_ROW_ID
+vidxcd	n_leaf_pages	Number of leaf pages in the index
+vidxcd	size	Number of pages in the index
+vidxe	n_diff_pfx01	e
+vidxe	n_diff_pfx02	e,DB_ROW_ID
+vidxe	n_leaf_pages	Number of leaf pages in the index
+vidxe	size	Number of pages in the index
+vidxf	n_diff_pfx01	f
+vidxf	n_diff_pfx02	f,DB_ROW_ID
+vidxf	n_leaf_pages	Number of leaf pages in the index
+vidxf	size	Number of pages in the index
+ALTER TABLE t DROP INDEX vidxcd;
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+index_name	stat_name	stat_description
+GEN_CLUST_INDEX	n_diff_pfx01	DB_ROW_ID
+GEN_CLUST_INDEX	n_leaf_pages	Number of leaf pages in the index
+GEN_CLUST_INDEX	size	Number of pages in the index
+idxb	n_diff_pfx01	b
+idxb	n_diff_pfx02	b,DB_ROW_ID
+idxb	n_leaf_pages	Number of leaf pages in the index
+idxb	size	Number of pages in the index
+vidxe	n_diff_pfx01	e
+vidxe	n_diff_pfx02	e,DB_ROW_ID
+vidxe	n_leaf_pages	Number of leaf pages in the index
+vidxe	size	Number of pages in the index
+vidxf	n_diff_pfx01	f
+vidxf	n_diff_pfx02	f,DB_ROW_ID
+vidxf	n_leaf_pages	Number of leaf pages in the index
+vidxf	size	Number of pages in the index
+DROP TABLE t;

mysql-test/suite/innodb/t/virtual_stats.test

+--source include/have_innodb.inc
+
+#
+# BUG#22469660 INNODB DOESN'T UPDATE INDEX STATS WHEN ADDING OR DROPPING VIRTUAL COLUMN
+#
+
+CREATE TABLE t (
+  a INT,
+  b INT,
+  c INT GENERATED ALWAYS AS(a+b),
+  d INT GENERATED ALWAYS AS(a+b+b),
+  KEY idxa (a),
+  KEY vidxcd (c, d)
+) ENGINE=INNODB;
+
+INSERT INTO t (a,b) VALUES (1, 2);
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+ALTER TABLE t ADD COLUMN e INT GENERATED ALWAYS AS(a+a+b), ADD INDEX idxb (b), ALGORITHM=INPLACE;
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+ALTER TABLE t DROP COLUMN c, DROP INDEX idxa, ALGORITHM=INPLACE;
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+ALTER TABLE t ADD INDEX vidxe (e), ALGORITHM=INPLACE;
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+ALTER TABLE t ADD COLUMN f INT GENERATED ALWAYS AS(a + a), ADD INDEX vidxf (f), ALGORITHM=INPLACE;
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+ALTER TABLE t DROP INDEX vidxcd;
+
+SELECT index_name, stat_name, stat_description
+FROM mysql.innodb_index_stats
+WHERE database_name = 'test' AND table_name = 't';
+
+DROP TABLE t;