Some tests drop the default mtr database "test". This may fail due
to the directory not being empty. InnoDB may not delete all tables
immediately, due to the "background drop table queue" or its
replacement in commit 1bd681c8
(the purge of history would clean up after a DDL operation during
which the server was killed).

Let us try to avoid "drop database test" whenever it is easily possible.
Where it is not, SET GLOBAL innodb_max_purge_lag_wait=0 will ensure
that the replacement of the "background drop table queue" will have
completed its job.

Consistent with MDEV-4206 and empty log_slow_filter still means
no explict filtering. Since 21518ab2 however the
log_queries_not_using_indexes became stored in the same variable.

As we need to test for the absense of log_queries_not_using_indexes
the SERVER_QUERY_NO_INDEX USED part of log_slow_statement, the empty
criteria resulted in an always true to log queries not using indexes if
log_slow_filter was set to empty.

Adjusted the log_slow.test for MDEV-4206 as slow_log_query has been
global and session for a while and it was relying on the MDEV-21187
buggy behavior to detect a slow query.

Reviewer: Monty

Previously we parsed it out in mysql_install_db for use in the error
message, but failed to pass it to mysqld in the bootstrap.

Also match log_error as it might appear in the .cnf files.

Thanks Michal Schorm for the test case.

Reviewed by: Faustin Lammler

This commit fixes the test system hanging due to
the galera_var_notify_ssl_ipv6 test and also brings
the wsrep_notify[_ssl].sh files in line with each other
between the user template and the mtr suite.

Quotes are also added here to avoid problems if the
user specifies the value of one of the variables at the
beginning of the file containing shell-specific characters,
for example, if the password or username specified in the
PSWD and USER variables will contain the "$" character.

Also fixed an issue with automatic --ssl-verify-server-cert
option substitution when the corresponding value is set
by the user to "1" or "on".

Also fixed some tests here to avoid joining one of the nodes
to another cluster when the nodes are restarted from the mtr
side, which can lead to random failures when testing with
buildbot.

mysql_discard_or_import_tablespace(): On successful
ALTER TABLE...DISCARD TABLESPACE, evict the table handle from the
table definition cache, so that ha_innobase::close() will be invoked,
like InnoDB expects to be the case. This will avoid an assertion failure
ut_a(table->get_ref_count() == 0) during IMPORT TABLESPACE.

ha_innobase::open(): Do not issue any ER_TABLESPACE_DISCARDED warning.
Member functions for DML will do that.

ha_innobase::truncate(), ha_innobase::check_if_supported_inplace_alter():
Issue ER_TABLESPACE_DISCARDED warnings, to compensate for the removal of
the warning in ha_innobase::open().

row_quiesce_write_indexes(): Only write information about committed
indexes. The ALTER TABLE t NOWAIT ADD INDEX(c) in the nondeterministic
test case will most of the time fail due to a metadata lock (MDL) timeout
and leave behind an uncommitted index.

Reviewed by: Sergei Golubchik

The geometry type requires Type:"Feature" but the feature need
not be first in the JSON structure.

Adjust code to return an error if geometry isn't a JSON object,
but continue parsing searching for Type: "Feature" to trigger
the geometry parsing.

Thanks Derick Magnusen for the bug report.

Add retry logic for CreateFile, DeleteFile, or MoveFile
when GetLastError() is ERROR_SHARING_VIOLATION.

MDEV-29636 Assertion `part_share->auto_inc_initialized || !can_use_for_auto_inc_init()' failed in ha_partition::set_auto_increment_if_higher upon REPLACE with partition pruning

The bug is caused by a similar mechanism as MDEV-21027.

The function, check_insert_or_replace_autoincrement, failed to open
all the partitions on REPLACE SELECT statements and it results in the
assertion error.

- Regression introduced 7baf24a0 for multidigit gcc dump.
There is no dot in `dumpversion`.
```
$ gcc -dumpversion
10
```
Otherwise it will fail and not produce the output
```
Running dgcov
Name "IO::Uncompress::Gunzip::GunzipError" used only once: possible typo at ./dgcov.pl line 197.
Cannot parse gcc -dumpversion: 9
```

- The warning `once` is always generated:
```
Running dgcov
Name "IO::Uncompress::Gunzip::GunzipError" used only once: possible typo at ./dgcov.pl line 197.
<number>
```
Suppresing the line `Name "IO::Uncompress::Gunzip::GunzipError" used only once: possible typo at ./dgcov.pl line 197.`
with the patch.

- Reviewed by: <>

and enable option bundling

* update README
* fix version regex to support versions with two digits
* die if the version cannot be parsed
* support gcc versions 11+
* require JSON::PP not use, to avoid introducing new rpm dependency
  into MariaDB-test

- Script covers situation for gcov (gcc) < 9 with non-json format of
generated files as well as for gcov (gcc) >=8 with json generated format

Reviewed by: serg@mariadb.com

sometimes `KILL QUERY ID @id` was executed before the previous
`send SELECT SLEEP(1000)` has reached the parser. As the statement
resets the kill status before execution, the effect of the KILL
was ignored.

Item_func_not_all::print() either uses Item_func::print() or
directly invokes args[0]->print(). Thus the precedence should be
either the one of Item_func or of args[0].

Item_allany_subselect::print() prints args[0], then a comparison op,
then a subquery. That is, the precedence should be the one of
a comparison.

detect non-determinism in vcol of vcol, like:

create table t1 (a int, b real as (rand()), c real as (b) stored);

change vcol_upgrade test to use stored gcols

rename to stress that is a specific hack for Item_func_nextval
and should not be used for other items.

If a vcol uses Item_func_nextval, a corresponding table for the sequence
should be added to the prelocking list (in that sense NEXTVAL is not
simply a function, but more like a subquery), see add_internal_tables()
in DML_prelocking_strategy::handle_table(). At the moment it is only
implemented for DEFAULT, not for GENERATED ALWAYS AS, thus the
VCOL_NEXTVAL hack.

remove dead code

&fake_argv cannot be cast to char***
this causes a crash when resolving

select_union_direct::send_data() only sends a record when
the LIMIT ... OFFSET clause of the individual select won't skip it.

Thus, select_union_direct::send_data() should not do any actions
related to a sending a record if the offset of a select isn't
reached yet

protect shared dict_table_t::vc_templ with a mutex,
same as in ha_innobase::open

Decent name given to the column.

MDEV-28696 View created as "select b''; " references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them

Like in MDEV-16110 we must release items allocated on thd->mem_root by
reopening the table.

MDEV-16290 relocated MDEV-16110 fix in 10.5 so it works for MDEV-28576
as well. 10.3 without MDEV-16290 now duplicates this fix.

The change from MDEV-29465 exposed a flaw in replace_column_table
where again we were not properly updating the column-level bits.

replace_table_table was changed in MDEV-29465 to properly update
grant_table->init_cols, however replace_column_table still only
modified grant_column->rights when the GRANT_COLUMN already existed.

This lead to a missmatch between GRANT_COLUMN::init_rights and
GRANT_COLUMN::rights, *if* the GRANT_COLUMN already existed.

As an example:

GRANT SELECT (col1) ...
Here:
For col1
GRANT_COLUMN::init_rights and GRANT_COLUMN::rights are set to 1 (SELECT) in
replace_column_table.

GRANT INSERT (col1) ...
Here, without this patch GRANT_COLUMN::init_rights is still 1 and
GRANT_COLUMN::rights is 3 (SELECT_PRIV | INSERT_PRIV)

Finally, if before this patch, one does:

REVOKE SELECT (col1) ...

replace_table_table will see that init_rights loses bit 1 thus it
considers there are no more rights granted on that particular table.

This prompts the whole GRANT_TABLE to be removed via the first revoke,
when the GRANT_COLUMN corresponding to it should still have init_rights == 2.

By also updating replace_column_table to keep init_rights in sync
properly, the issue is resolved.

Reviewed by <serg@mariadb.com>

- Bug happens only in case when the range function on empty key single
column index (XINDEXS) is used.
- Solution is to return with empty result in this scenario.

Reviewed by: <>

Commit 32158be7 added a new test `bad_startup_options`. This test fails
if run as root, which is common on many CI systems.

This test should include `not_as_root.inc` so it is skipped, just
like all other similar tests in MariaDB.

All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the
BSD-new license. I am contributing on behalf of my employer
Amazon Web Services, Inc.

Fixes up commit b8ad6fbd

Ensure that all memory allocated by TABLE_LIST::change_refs_to_fields() is
in the same memory root!

The following tests are disabled when running --valgrding without --big:
- rpl.rpl_ssl
- rpl.rpl_semi_sync_event
- All encryption test (which includes have_file_key_management.inc)

MDEV-16735 describes how mysql_upgrade fails when alter_algorithm
is set to a value different than 'DEFAULT'/'COPY'. It was marked as
fixed by 0ee08683, but the fix didn't covered the possibility of having
the global value of alter_algorithm set to something different than
'DEFAULT'/'COPY'. To ensure that the upgrade process works properly
regardless the global value of alter_altorithm, this commit force it's
value to 'DEFAULT' (note the quotes) for the mysql_upgrade session.

All new code of the whole pull request, including one or several files
that are either new files or modified ones, are contributed under the
BSD-new license. I am contributing on behalf of my employer
Amazon Web Services, Inc.

Reviewer: <serg@mariadb.com>
Closes PR #2244

MDEV-28996 ASAN errors in String::q_append / spider_string::q_append / spider_db_mbase_util::open_item_func

The server crashed due to the stack-use-after-scope on tmp_str.
tmp_str will be used later so should not point to the local buffer.

The crash occurs because of the following call of TABLE_LIST::init_one_table():

  table_list.init_one_table(
    &table_list.db, &table_list.table_name, 0, TL_WRITE);

One should not pass table_list.db and table_list.table_name to the function
because it update the very members internally.

The function is called previously, and there is no need to call it again.
So, simply removing the call will resolve the problem.

Virtual column values are updated in handler in reading commands,
like ha_index_next, etc. This was missing for ha_ft_read.

handler::ha_ft_read: add table->update_virtual_fields() call