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
m_status == DA_OK
Reading from information_scema.tables or information_schema.columns
may cause assertion failure in debug builds. This may happen under
rare circumstances when information_schema fails to get information
about a table (e.g. when a connection is killed).
This happens because open_normal_and_derived_tables() can return an
error without setting an error message in THD. But information_schema
attempts to get an error message from THD unconditionally.
With this fix information_schema attempts to get an error message
from THD only in case error message is set in THD.
Problem: in mixed and statement mode, a query that refers to a
system variable will use the slave's value when replayed on
slave. So if the value of a system variable is inserted into a
table, the slave will differ from the master.
Fix: mark statements that refer to a system variable as "unsafe",
meaning they will be replicated by row in mixed mode and produce a warning
in statement mode. There are some exceptions: some variables are actually
replicated. Those should *not* be marked as unsafe.
BUG#34732: mysqlbinlog does not print default values for auto_increment variables
Problem: mysqlbinlog does not print default values for some variables,
including auto_increment_increment and others. So if a client executing
the output of mysqlbinlog has different default values, replication will
be wrong.
Fix: Always print default values for all variables that are replicated.
I need to fix the two bugs at the same time, because the test cases would
fail if I only fixed one of them.
There was a failure in that show slave status displayed a wrong message
when slave stopped at processing a row event inserting to a default-less
column.
The problem seem to have ceased after recent fixes in rbr code.
However, the test was not updated to carry testing of the case commented-out.
Uncommenting and editing the test.
Notice, Bug#23907 is most probably a duplicate of this one.
returns wrong results
Casting AVG() to DECIMAL led to incorrect results when the arguments
had a non-DECIMAL type, because in this case
Item_sum_avg::val_decimal() performed the division by the number of
arguments twice.
Fixed by changing Item_sum_avg::val_decimal() to not rely on
Item_sum_sum::val_decimal(), i.e. calculate sum and divide using
DECIMAL arithmetics for DECIMAL arguments, and utilize val_real() with
subsequent conversion to DECIMAL otherwise.
MASTER_POS_WAIT return values are different than expected when the server is not a slave.
It returns -1 instead of NULL.
Fixed with correcting st_relay_log_info::wait_for_pos() to return the proper
value in the case of rli info is not inited.
The initial value of free memory blocks in 0. When the query cache is enabled
a new memory block gets allocated and is assigned number 1. The free memory
block is later split each time query cache memory is allocated for new blocks.
This means that the free memory block counter won't be reduced to zero when
the number of allocated blocks are zero, but rather one. To avoid confusion
this patch changes this behavior so that the free memory block counter is
reset to zero when the query cache is disabled.
Note that when the query cache is enabled and resized the free memory block
counter was still calculated correctly.
The cause of the crash is an assertion failure that we do not emit
an error message (grant not found) and then return "ok". The
assertion is valid, and we were ignoring the buggy behavior prior
to the "Diagnostics" result-verification.
Use an error handler to mutate innocuous missing-grant errors, when
removing routines, into warnings.
There was no way to see if report-{host,port,user,password} were set up.
Fixed with introducing new global variables.
The variables are made read-only because of a possible need to change them
most probably require the slave server restart.
Todo: transform the startup options to be CHANGE master parameters - i.e
to deprecate `report-' options, and to change the new vars
to be updatable at time of CHANGE master executes with new
values.
It's impossible to determine which test inside mysql_client_test
failed if the log file is overwritten by mysqltest when dumping
the test case results. Redirect mysql_client_test output to a
separate file.
- Apply Eric Bergen's patch: in join_read_always_key(), move ha_index_init() call
to before the late NULLs filtering code.
- Backport function comments from 6.0.
