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# # Test fetching from stats tables after manual update (ie FLUSH TABLE # can be used to forcibly (re)fetch the stats from disk) # -- source include/have_innodb.inc # Various sizes printed in this test depend on the page size and the # functionality tested here is not related to the page size, so we only # test with 16k page size. -- source include/have_innodb_16k.inc -- vertical_results CREATE TABLE test_ps_fetch (a INT, b INT, c INT, d INT, PRIMARY KEY (a, b), INDEX idx (c, d)) ENGINE=INNODB STATS_PERSISTENT=1; ANALYZE TABLE test_ps_fetch; SELECT n_rows, clustered_index_size, sum_of_other_index_sizes FROM mysql.innodb_table_stats WHERE table_name = 'test_ps_fetch'; SELECT index_name, stat_name, stat_value, sample_size, stat_description FROM mysql.innodb_index_stats WHERE table_name = 'test_ps_fetch' ORDER BY index_name, stat_name; SELECT index_name, seq_in_index, column_name, cardinality FROM information_schema.statistics WHERE table_name = 'test_ps_fetch' ORDER BY index_name, seq_in_index; SELECT table_rows, avg_row_length, max_data_length, index_length FROM information_schema.tables WHERE table_name = 'test_ps_fetch'; UPDATE mysql.innodb_table_stats SET n_rows = 1000, clustered_index_size = 5 WHERE table_name = 'test_ps_fetch'; UPDATE mysql.innodb_index_stats SET stat_value = 20 WHERE table_name = 'test_ps_fetch' AND index_name = 'PRIMARY' AND stat_name = 'n_diff_pfx01'; UPDATE mysql.innodb_index_stats SET stat_value = 90 WHERE table_name = 'test_ps_fetch' AND index_name = 'PRIMARY' AND stat_name = 'n_diff_pfx02'; UPDATE mysql.innodb_index_stats SET stat_value = 3 WHERE table_name = 'test_ps_fetch' AND index_name = 'idx' AND stat_name = 'n_diff_pfx01'; UPDATE mysql.innodb_index_stats SET stat_value = 11 WHERE table_name = 'test_ps_fetch' AND index_name = 'idx' AND stat_name = 'n_diff_pfx02'; FLUSH TABLE test_ps_fetch; SELECT seq_in_index, column_name, cardinality FROM information_schema.statistics WHERE table_name = 'test_ps_fetch' ORDER BY index_name, seq_in_index; SELECT table_rows, avg_row_length, max_data_length, index_length FROM information_schema.tables WHERE table_name = 'test_ps_fetch'; DROP TABLE test_ps_fetch;