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mariadb/mysql-test/suite/funcs_1
mleich@five.local.lan 30091e23f9 WL#4203 Reorganize and fix the data dictionary tests of
testsuite funcs_1
1. Fix the following bugs
   Bug#30440 "datadict" tests (all engines) fail: Character sets depend on configuration
      Solution: Test variants charset_collation_* adjusted to different builds
   Bug#32603 "datadict" tests (all engines) fail in "community" tree: "PROFILING" table
      Solution: Excluding "PROFILING" table from queries
   Bug#33654 "slow log" is missing a line
      Solution: Unify the content of the fields TABLES.TABLE_ROWS and
                STATISTICS.CARDINALITY within result sets
   Bug#34532 Some funcs_1 tests do not clean up at end of testing
      Solution: DROP objects/reset global server variables modified during testing
                + let tests missing implementation end before loading of tables
   Bug#31421 funcs_1: ndb__datadict fails, discrepancy between scripts and expected results
      Solution: Cut <engine>__datadict tests into smaller tests + generate new results.
   Bug#33599 INFORMATION_SCHEMA.STATISTICS got a new column INDEX_COMMENT: tests fail (2)
      Generation of new results during post merge fix
   Bug#33600 CHARACTER_OCTET_LENGTH is now CHARACTER_MAXIMUM_LENGTH * 4
      Generation of new results during post merge fix
   Bug#33631 Platform-specific replace of CHARACTER_MAXIMUM_LENGTH broken by 4-byte encoding
      Generation of new results during post merge fix
      + removal of platform-specific replace routine (no more needed)
2. Restructure the tests
   - Test not more than one INFORMATION_SCHEMA view per testscript
   - Separate tests of I_S view layout+functionality from content related to the
     all time existing databases "information_schema", "mysql" and "test"
   - Avoid storage engine related variants of tests which are not sensible to
     storage engines at all.
3. Reimplement or add some subtests + cleanup
   There is a some probability that even the reviewed changeset
   - does not fix all bugs from above   or
   - contains new bugs which show up on some platforms <> Linux or on one of
     the various build types
4. The changeset contains fixes according to
   - one code review
   - minor bugs within testing code found after code review (accepted by reviewer)
   - problems found during tests with 5.0.56 in build environment
2008-03-07 17:33:07 +01:00
..
2007-02-06 19:07:48 +01:00

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:
   - 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'