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66c14d3a8d
- If select query chooses the index 'b' over clustered index then the issue can happen. Changed the test case to use primary index for the select query.
121 lines
2.7 KiB
Plaintext
121 lines
2.7 KiB
Plaintext
#
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# Test information_schema.innodb_cmp_per_index
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#
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-- source include/have_innodb.inc
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# Using innodb_log_compressed=0 leads to a larger number of page
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# compressions, because page_cur_insert_rec_zip() will reorganize the
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# page before attempting an insert followed by page compression and
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# page_zip_compress_write_log_no_data().
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if (`SELECT @@innodb_log_compressed_pages = 0`)
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{
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--skip Needs innodb_log_compressed_pages
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}
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# numbers read in this test depend on the page size
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-- source include/have_innodb_16k.inc
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# include/restart_mysqld.inc does not work in embedded mode
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-- source include/not_embedded.inc
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-- vertical_results
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SET GLOBAL innodb_cmp_per_index_enabled=ON;
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# reset any leftover stats from previous tests
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-- disable_query_log
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-- disable_result_log
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SELECT * FROM information_schema.innodb_cmp_per_index_reset;
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-- enable_result_log
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-- enable_query_log
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# see that the table is empty
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SELECT * FROM information_schema.innodb_cmp_per_index;
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# create a table that uses compression
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CREATE TABLE t (
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a INT,
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b VARCHAR(512),
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c VARCHAR(16),
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PRIMARY KEY (a),
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INDEX (b(512)),
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INDEX (c(16))
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) ENGINE=INNODB KEY_BLOCK_SIZE=2;
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SELECT
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database_name,
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table_name,
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index_name,
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compress_ops,
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compress_ops_ok,
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uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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# insert some data into it
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BEGIN;
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-- disable_query_log
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let $i=128;
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while ($i)
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{
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-- eval INSERT INTO t VALUES ($i, REPEAT('x', 512), NULL);
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dec $i;
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}
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-- enable_query_log
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COMMIT;
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ALTER TABLE t DROP INDEX c;
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GRANT USAGE ON *.* TO 'tuser01'@'localhost' IDENTIFIED BY 'cDJvI9s_Uq';
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FLUSH PRIVILEGES;
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-- connect (con1,localhost,tuser01,cDJvI9s_Uq,)
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-- connection con1
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-- error ER_SPECIFIC_ACCESS_DENIED_ERROR
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SELECT * FROM information_schema.innodb_cmp_per_index;
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-- connection default
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-- disconnect con1
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DROP USER 'tuser01'@'localhost';
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SELECT
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database_name,
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table_name,
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index_name,
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CASE WHEN compress_ops=47 and @@innodb_compression_level IN (4,8,9) THEN 65
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ELSE compress_ops END as compress_ops,
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CASE WHEN compress_ops_ok=47 and @@innodb_compression_level IN (4,8,9) THEN 65
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ELSE compress_ops_ok END as compress_ops_ok,
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uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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# restart mysqld and see that uncompress ops also gets increased when
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# selecting from the table again
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-- source include/restart_mysqld.inc
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SHOW CREATE TABLE t;
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SET GLOBAL innodb_cmp_per_index_enabled=ON;
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SELECT COUNT(*) FROM t IGNORE INDEX(b);
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SELECT
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database_name,
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table_name,
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index_name,
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compress_ops,
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compress_ops_ok,
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CASE WHEN uncompress_ops=6 and @@innodb_compression_level IN (4,8,9) THEN 9
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ELSE uncompress_ops END as uncompress_ops
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FROM information_schema.innodb_cmp_per_index
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ORDER BY 1, 2, 3;
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DROP TABLE t;
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SET GLOBAL innodb_cmp_per_index_enabled=default;
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