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94033fcf83
Columns added to TABLE_STATISTICS - ROWS_INSERTED, ROWS_DELETED, ROWS_UPDATED, KEY_READ_HITS and KEY_READ_MISSES. Columns added to CLIENT_STATISTICS and USER_STATISTICS: - KEY_READ_HITS and KEY_READ_MISSES. User visible changes (except new columns): - CLIENT_STATISTICS and USER_STATISTICS has columns KEY_READ_HITS and KEY_READ_MISSES added after column ROWS_UPDATED before SELECT_COMMANDS. Other changes: - Do not collect table statistics for system tables like index_stats table_stats, performance_schema, information_schema etc as the user has no control of these and the generate noice in the statistics. - All row variables that are part of user_stats are moved to 'struct rows_stats' to make it easy to clear all of them at once. - ha_read_key_misses added to STATUS_VAR Notes: - userstat.result has a change of numbers of rows for handler_read_key. This is because use-stat-tables is now disabled for the test.
2008-02-29 Matthias Leich
=========================
1. The testsuite "funcs_1" is mostly intended for additional (compared
to the common regression tests stored in mysql-test/t) checks
of features (VIEWS, INFORMATION_SCHEMA, STORED PROCEDURES,...)
introduced with MySQL 5.0.
2. There were some extensions of this suite when new information_schema
views were introduced. But in most cases the tests for these views
were stored within the regression testsuite (mysql-test/t).
INFORMATION_SCHEMA views introduced with MySQL 5.1
==================================================
ENGINES (partially tested here)
EVENTS (partially tested here)
FILES
GLOBAL_STATUS
GLOBAL_VARIABLES
PARTITIONS
PLUGINS
PROCESSLIST (full tested here)
PROFILING
REFERENTIAL_CONSTRAINTS
SESSION_STATUS
SESSION_VARIABLES
3. Some hints for maintainers of this suite:
- SHOW TABLES ... LIKE '<pattern>'
does a case sensitive comparison between the tablename and
the pattern.
The names of the tables within the informationschema are in uppercase.
So please use something like
SHOW TABLES FOR information_schema LIKE 'TABLES'
when you intend to get the same non empty result set on OS with and
without case sensitive filesystems and default configuration.
- The name of the data dictionary is 'information_schema' (lowercase).
- Server on OS with filesystem with case sensitive filenames
(= The files 'abc' and 'Abc' can coexist.)
+ default configuration
Example of behaviour:
DROP DATABASE information_schema;
ERROR 42000: Access denied for user ... to database 'information_schema'
DROP DATABASE INFORMATION_SCHEMA;
ERROR 42000: Access denied for user ... to database 'INFORMATION_SCHEMA'
- Try to unify results by
--replace_result $engine_type <engine_to_be_tested>
if we could expect that the results for storage engine variants of a
test differ only in the engine names.
This makes future maintenance easier.
- Avoid the use of include/show_msg*.inc.
They produce "SQL" noise which annoys during server debugging and can be
easy replaced by "--echo ...".