diff options
Diffstat (limited to 'mysql-test/t/statistics.test')
| -rw-r--r-- | mysql-test/t/statistics.test | 290 |
1 files changed, 290 insertions, 0 deletions
diff --git a/mysql-test/t/statistics.test b/mysql-test/t/statistics.test new file mode 100644 index 00000000000..9ea57aca14a --- /dev/null +++ b/mysql-test/t/statistics.test @@ -0,0 +1,290 @@ +--source include/have_innodb.inc +--disable_warnings +drop table if exists t1,t2; +--enable_warnings + +CREATE VIEW table_stat AS +SELECT * FROM mysql.table_stat; + +CREATE VIEW column_stat AS + SELECT db_name, table_name, column_name, + min_value, max_value, + CAST(nulls_ratio AS decimal(12,4)) AS 'nulls_ratio', + CAST(avg_length AS decimal(12,4)) AS 'avg_length', + CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency' + FROM mysql.column_stat; + +CREATE VIEW index_stat AS + SELECT db_name, table_name, index_name, prefix_arity, + CAST(avg_frequency AS decimal(12,4)) AS 'avg_frequency' + FROM mysql.index_stat; + +DELETE FROM mysql.table_stat; +DELETE FROM mysql.column_stat; +DELETE FROM mysql.index_stat; + +set optimizer_use_stat_tables='preferably'; + +CREATE TABLE t1 ( + a int NOT NULL PRIMARY KEY, + b varchar(32), + c char(16), + d date, + e double, + f bit(3), + INDEX idx1 (b, e), + INDEX idx2(c, d), + INDEX idx3 (d), + INDEX idx4 (e, b, d) +); + +INSERT INTO t1 VALUES + (0, NULL, NULL, NULL, NULL, NULL), + (7, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'dddddddd', '1990-05-15', 0.1, b'100'), + (17, 'vvvvvvvvvvvvv', 'aaaa', '1989-03-12', 0.01, b'101'), + (1, 'vvvvvvvvvvvvv', NULL, '1989-03-12', 0.01, b'100'), + (12, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.112, b'001'), + (23, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.1, b'100'), + (8, 'vvvvvvvvvvvvv', 'aaaa', '1999-07-23', 0.1, b'100'), + (22, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'aaaa', '1989-03-12', 0.112, b'001'), + (31, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'aaaa', '1999-07-23', 0.01, b'001'), + (10, NULL, 'aaaa', NULL, 0.01, b'010'), + (5, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1999-07-23', 0.1, b'100'), + (15, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.1, b'010'), + (30, NULL, 'bbbbbb', NULL, NULL, b'100'), + (38, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, NULL, NULL), + (18, 'zzzzzzzzzzzzzzzzzz', 'ccccccccc', '1990-05-15', 0.01, b'010'), + (9, 'yyy', 'bbbbbb', '1998-08-28', 0.01, NULL), + (29, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.012, b'010'), + (3, 'yyy', 'dddddddd', '1990-05-15', 0.112, b'010'), + (39, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', NULL, 0.01, b'100'), + (14, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.1, b'100'), + (40, 'zzzzzzzzzzzzzzzzzz', 'bbbbbb', '1989-03-12', NULL, NULL), + (44, NULL, 'aaaa', '1989-03-12', NULL, b'010'), + (19, 'vvvvvvvvvvvvv', 'ccccccccc', '1990-05-15', 0.012, b'011'), + (21, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.112, b'100'), + (45, NULL, NULL, '1989-03-12', NULL, b'011'), + (2, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'ccccccccc', '1990-05-15', 0.1, b'001'), + (35, 'yyy', 'aaaa', '1990-05-15', 0.05, b'011'), + (4, 'vvvvvvvvvvvvv', 'dddddddd', '1999-07-23', 0.01, b'101'), + (47, NULL, 'aaaa', '1990-05-15', 0.05, b'010'), + (42, NULL, 'ccccccccc', '1989-03-12', 0.01, b'010'), + (32, NULL, 'bbbbbb', '1990-05-15', 0.01, b'011'), + (49, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'aaaa', '1990-05-15', NULL, NULL), + (43, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww' , 'bbbbbb', '1990-05-15', NULL, b'100'), + (37, 'yyy', NULL, '1989-03-12', 0.05, b'011'), + (41, 'xxxxxxxxxxxxxxxxxxxxxxxxxx', 'ccccccccc', '1990-05-15', 0.05, NULL), + (34, 'yyy', NULL, NULL, NULL, NULL), + (33, 'zzzzzzzzzzzzzzzzzz', 'dddddddd', '1989-03-12', 0.05, b'011'), + (24, 'wwwwwwwwwwwwwwwwwwwwwwwwwwww', 'dddddddd', '1990-05-15', 0.01, b'101'), + (11, 'yyy', 'ccccccccc', '1999-07-23', 0.1, NULL), + (25, 'zzzzzzzzzzzzzzzzzz', 'bbb', '1989-03-12', 0.01, b'101'); + +ANALYZE TABLE t1; + +SELECT * FROM table_stat; +SELECT * FROM column_stat; +SELECT * FROM index_stat; + +SELECT COUNT(*) FROM t1; + +SELECT * FROM column_stat + WHERE db_name='test' AND table_name='t1' AND column_name='a'; +SELECT MIN(t1.a), MAX(t1.a), + (SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) / + (SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.a)", + (SELECT COUNT(t1.a) FROM t1) / + (SELECT COUNT(DISTINCT t1.a) FROM t1) AS "AVG_FREQUENCY(t1.a)" +FROM t1; + +SELECT * FROM column_stat + WHERE db_name='test' AND table_name='t1' AND column_name='b'; +SELECT MIN(t1.b), MAX(t1.b), + (SELECT COUNT(*) FROM t1 WHERE t1.b IS NULL) / + (SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.b)", + (SELECT COUNT(t1.b) FROM t1) / + (SELECT COUNT(DISTINCT t1.b) FROM t1) AS "AVG_FREQUENCY(t1.b)" +FROM t1; + +SELECT * FROM column_stat + WHERE db_name='test' AND table_name='t1' AND column_name='c'; +SELECT MIN(t1.c), MAX(t1.c), + (SELECT COUNT(*) FROM t1 WHERE t1.c IS NULL) / + (SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.c)", + (SELECT COUNT(t1.c) FROM t1) / + (SELECT COUNT(DISTINCT t1.c) FROM t1) AS "AVG_FREQUENCY(t1.c)" +FROM t1; + +SELECT * FROM column_stat + WHERE db_name='test' AND table_name='t1' AND column_name='d'; +SELECT MIN(t1.d), MAX(t1.d), + (SELECT COUNT(*) FROM t1 WHERE t1.d IS NULL) / + (SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.d)", + (SELECT COUNT(t1.d) FROM t1) / + (SELECT COUNT(DISTINCT t1.d) FROM t1) AS "AVG_FREQUENCY(t1.d)" +FROM t1; + +SELECT * FROM column_stat + WHERE db_name='test' AND table_name='t1' AND column_name='e'; +SELECT MIN(t1.e), MAX(t1.e), + (SELECT COUNT(*) FROM t1 WHERE t1.e IS NULL) / + (SELECT COUNT(*) FROM t1) AS "NULLS_RATIO(t1.e)", + (SELECT COUNT(t1.e) FROM t1) / + (SELECT COUNT(DISTINCT t1.e) FROM t1) AS "AVG_FREQUENCY(t1.e)" +FROM t1; + +SELECT * FROM index_stat + WHERE db_name='test' AND table_name='t1' AND index_name='idx1'; +SELECT + (SELECT COUNT(*) FROM t1 WHERE t1.b IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.b) FROM t1 WHERE t1.b IS NOT NULL) + AS 'ARITY 1', + (SELECT COUNT(*) FROM t1 WHERE t1.b IS NOT NULL AND t1.e IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.b, t1.e) FROM t1 + WHERE t1.b IS NOT NULL AND t1.e IS NOT NULL) + AS 'ARITY 2'; + +SELECT * FROM index_stat + WHERE db_name='test' AND table_name='t1' AND index_name='idx2'; +SELECT + (SELECT COUNT(*) FROM t1 WHERE t1.c IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.c) FROM t1 WHERE t1.c IS NOT NULL) + AS 'ARITY 1', + (SELECT COUNT(*) FROM t1 WHERE t1.c IS NOT NULL AND t1.d IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.c, t1.d) FROM t1 + WHERE t1.c IS NOT NULL AND t1.d IS NOT NULL) + AS 'ARITY 2'; + +SELECT * FROM index_stat + WHERE db_name='test' AND table_name='t1' AND index_name='idx3'; +SELECT + (SELECT COUNT(*) FROM t1 WHERE t1.d IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.d) FROM t1 WHERE t1.d IS NOT NULL) + AS 'ARITY 1'; + +SELECT * FROM index_stat + WHERE db_name='test' AND table_name='t1' AND index_name='idx4'; +SELECT + (SELECT COUNT(*) FROM t1 WHERE t1.e IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.e) FROM t1 WHERE t1.e IS NOT NULL) + AS 'ARITY 1', + (SELECT COUNT(*) FROM t1 WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.e, t1.b) FROM t1 + WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL) + AS 'ARITY 2', + (SELECT COUNT(*) FROM t1 + WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL AND t1.d IS NOT NULL) / + (SELECT COUNT(DISTINCT t1.e, t1.b, t1.d) FROM t1 + WHERE t1.e IS NOT NULL AND t1.b IS NOT NULL AND t1.d IS NOT NULL) + AS 'ARITY 3'; + + +CREATE TABLE t2 LIKE t1; +ALTER TABLE t2 ENGINE=InnoDB; +INSERT INTO t2 SELECT * FROM t1; + +ANALYZE TABLE t2; + +SELECT * FROM table_stat; +SELECT * FROM column_stat ORDER BY column_name; +SELECT * FROM index_stat ORDER BY index_name, prefix_arity, table_name; + + +DELETE FROM mysql.table_stat; +DELETE FROM mysql.column_stat; +DELETE FROM mysql.index_stat; + +ALTER TABLE t1 + DROP INDEX idx1, + DROP INDEX idx4; +ALTER TABLE t1 + MODIFY COLUMN b text, + ADD INDEX idx1 (b(4), e), + ADD INDEX idx4 (e, b(4), d); + +ANALYZE TABLE t1; + +SELECT * FROM column_stat; +SELECT * FROM index_stat; + +DROP TABLE t1,t2; + +DELETE FROM mysql.table_stat; +DELETE FROM mysql.column_stat; +DELETE FROM mysql.index_stat; + +set optimizer_use_stat_tables='never'; + +set names utf8; + +CREATE DATABASE world; + +use world; + +--source include/world_schema_utf8.inc + +--disable_query_log +--disable_result_log +--disable_warnings +--source include/world.inc +--enable_warnings +--enable_result_log +--enable_query_log + +set optimizer_use_stat_tables='preferably'; + +--disable_result_log +ANALYZE TABLE Country, City, CountryLanguage; +--enable_result_log + +SELECT * FROM test.table_stat; +SELECT * FROM test.column_stat; +SELECT * FROM test.index_stat; + +use test; + +set optimizer_use_stat_tables='never'; + +CREATE DATABASE world_innodb; + +use world_innodb; + +--source include/world_schema_utf8.inc + +ALTER TABLE Country ENGINE=InnoDB; +ALTER TABLE City ENGINE=InnoDB; +ALTER TABLE CountryLanguage ENGINE=InnoDB; + +--disable_query_log +--disable_result_log +--disable_warnings +--source include/world.inc +--enable_warnings +--enable_result_log +--enable_query_log + +set optimizer_use_stat_tables='preferably'; + +--disable_result_log +ANALYZE TABLE Country, City, CountryLanguage; +--enable_result_log + +SELECT * FROM test.table_stat; +SELECT * FROM test.column_stat; +SELECT * FROM test.index_stat; + +use test; + +DROP DATABASE world; +DROP DATABASE world_innodb; + +DELETE FROM mysql.table_stat; +DELETE FROM mysql.column_stat; +DELETE FROM mysql.index_stat; + +DROP VIEW test.table_stat; +DROP VIEW test.column_stat; +DROP VIEW test.index_stat; + + +
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