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5d20f7b346
Made sure that innodb tables for persistent statistics would not considered by the server as system tables.
80 lines
2.1 KiB
Plaintext
80 lines
2.1 KiB
Plaintext
#
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# Test fetching from stats tables after manual update (ie FLUSH TABLE
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# can be used to forcibly (re)fetch the stats from disk)
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#
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-- source include/have_innodb.inc
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# Various sizes printed in this test depend on the page size and the
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# functionality tested here is not related to the page size, so we only
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# test with 16k page size.
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-- source include/have_innodb_16k.inc
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-- vertical_results
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CREATE TABLE test_ps_fetch
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(a INT, b INT, c INT, d INT, PRIMARY KEY (a, b), INDEX idx (c, d))
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ENGINE=INNODB STATS_PERSISTENT=1;
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ANALYZE TABLE test_ps_fetch;
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SELECT n_rows, clustered_index_size, sum_of_other_index_sizes
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FROM mysql.innodb_table_stats WHERE table_name = 'test_ps_fetch';
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SELECT index_name, stat_name, stat_value, sample_size, stat_description
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FROM mysql.innodb_index_stats WHERE table_name = 'test_ps_fetch'
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ORDER BY index_name, stat_name;
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SELECT index_name, seq_in_index, column_name, cardinality
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FROM information_schema.statistics WHERE table_name = 'test_ps_fetch'
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ORDER BY index_name, seq_in_index;
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SELECT
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table_rows, avg_row_length, max_data_length, index_length
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FROM information_schema.tables WHERE table_name = 'test_ps_fetch';
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UPDATE mysql.innodb_table_stats SET
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n_rows = 1000,
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clustered_index_size = 5
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WHERE
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table_name = 'test_ps_fetch';
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UPDATE mysql.innodb_index_stats SET
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stat_value = 20
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WHERE
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table_name = 'test_ps_fetch' AND
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index_name = 'PRIMARY' AND
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stat_name = 'n_diff_pfx01';
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UPDATE mysql.innodb_index_stats SET
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stat_value = 90
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WHERE
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table_name = 'test_ps_fetch' AND
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index_name = 'PRIMARY' AND
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stat_name = 'n_diff_pfx02';
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UPDATE mysql.innodb_index_stats SET
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stat_value = 3
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WHERE
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table_name = 'test_ps_fetch' AND
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index_name = 'idx' AND
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stat_name = 'n_diff_pfx01';
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UPDATE mysql.innodb_index_stats SET
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stat_value = 11
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WHERE
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table_name = 'test_ps_fetch' AND
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index_name = 'idx' AND
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stat_name = 'n_diff_pfx02';
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FLUSH TABLE test_ps_fetch;
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SELECT seq_in_index, column_name, cardinality
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FROM information_schema.statistics WHERE table_name = 'test_ps_fetch'
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ORDER BY index_name, seq_in_index;
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SELECT
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table_rows, avg_row_length, max_data_length, index_length
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FROM information_schema.tables WHERE table_name = 'test_ps_fetch';
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DROP TABLE test_ps_fetch;
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