WITH_EMBEDDED_SERVER compiles the SQL parsers separately.
Thanks to Vladislav Vaintroub for helping with this.

Fixes up commit e05ab0cf

SELECT FROM JSON_TABLE

Analysis: When fix_fields_if_needed() is called, it doesnt check if operands
are valid because check_cols() is not called. So it doesn't error out and
eventually crashes.
Fix: Use fix_fields_if_needed_for_scalar() instead of
fix_fields_if_needed(). It filters the scalar and returns the error if
it occurs.

See also commits aa8a31da and 64678c for a Bug #22990029 fix.

In this scenario INSERT chose to check if delete unmarking is available for
a just deleted record. To build an update vector, it needed to calculate
the vcols as well. Since this INSERT was not IGNORE-flagged, recalculation
failed.

Solutiuon: temporarily set abort_on_warning=true, while calculating the
column for delete-unmarked insert.

As of now innodb does not store trx_id for each record in secondary index.
The idea behind is following: let us store only per-page max_trx_id, and
delete-mark the records when they are deleted/updated.

If the read starts, it rememders the lowest id of currently active
transaction. Innodb refers to it as trx->read_view->m_up_limit_id.
See also ReadView::open.

When the page is fetched, its max_trx_id is compared to m_up_limit_id.
If the value is lower, and the secondary index record is not delete-marked,
then this page is just safe to read as is. Else, a clustered index could be
needed ato access. See page_get_max_trx_id call in row_search_mvcc, and the
corresponding switch (row_search_idx_cond_check(...)) below.

Virtual columns are required to be updated in case if the record was
delete-marked. The motivation behind it is documented in
Row_sel_get_clust_rec_for_mysql::operator() near
row_sel_sec_rec_is_for_clust_rec call.

This was basically a description why virtual column computation can
normally happen during SELECT, and, generally, a vcol index access.

Sometimes stats tables are updated by innodb. This starts a new
transaction, and it can happen that it didn't finish to the moment of
SELECT execution, forcing virtual columns recomputation. If the result was
a something that normally outputs a warning, like division by zero, then
it could be outputted in a racy manner.

The solution is to suppress the warnings when a column is computed
for the described purpose.
ignore_wrnings argument is added innobase_get_computed_value.
Currently, it is only true for a call from
row_sel_sec_rec_is_for_clust_rec.

* MDEV-29142 : Ignore inconsistency warning as we kill cluster
* galera_parallel_apply_3nodes : Disabled because it is unstable
* MDEV-26597 : Add missing code
* galera_sr.galera_sr_ws_size2 : Remove incorrect assertion

MDEV-19243 introduced a regression on Windows.

In (supposedly rare) case, where environment variable TZ was set,
@@system_time_zone no longer derives from TZ. Instead, it incorrecty
refers to system default time zone, eventhough UTC time conversion
takes TZ into account.

The fix is to restore TZ-aware handling (timezone name derives from
tzname), if TZ is set.

followup for e8acec89

The statement 'Verify checksum binlog events.' is confusing. Fix word order to make it clear.

The problem is related to performing operations without switching
wsrep off, this commit fixes this and allows disabled tests.

The problem is related to performing operations without switching
wsrep off, this commit fixes this and allows disabled tests.

Avoid relatively expensive THD::store_globals() for every query in the
threadpool. Use a lighter version instead, that only resets some thread
local storage variables(THD, mysys, PSI), avoids some calculationms
and caches syscall gettid (Linux only) in a thread_local variable.

Also simplify Worker_context use, with RAII.

Adding debug output for key and keyseg flags at ha_myisam::open() time.
So now there are three points of debug output:

1. In the very end of mysql_prepare_create_table()
2. In ha_myisam::create(), after the table2myisam() call
3. In ha_myisan::open(), after the mi_open() call

mi_create(), which is is called between 2 and 3, modifies flags for
some data types, so the output in 2 and 3 is different.