Changed wording in error messages from MySQL to MariaDB. In
cases where the word server could be used instead it was done.

Tests that have these errors recorded were updated.

In a multi-batch recovery, we must ensure that INIT_PAGE and
especially the MDEV-15528 FREE_PAGE records will be taken
properly into account.

Writing a FREE_PAGE record gives the server permission to omit
a page write. If recovery insists on applying log to a page
whose page flush has been omitted, then the consistency checks
in the application of high-level redo log records (appending
an undo log record, inserting or deleting an index record)
will likely fail.

mlog_init_t::add(): Return whether the state was changed.

mlog_init_t::will_avoid_read(): Determine whether a page read
will be avoided and whether older log records can be safely
skipped.

recv_sys_t::parse(): Even if store==STORE_NO, process the records
INIT_PAGE and FREE_PAGE. While processing them, we can delete older
redo log records for the page. If store!=STORE_NO, we can directly
skip redo log recods of other types if mlog_init indicates that the
page will be freed or initialized by at a later LSN.

This fix was developed in cooperation with
Thirunarayanan Balathandayuthapani.

Also executable can change for jemalloc.

Comma is reported not to work on older systems/ASAN versions

ADD default history partitions generates wrong partition name,
f.ex. p2 instead of p1. Gap in sequence of partition names leads to
ha_partition::open_read_partitions() fail on inexistent name.

Manual fixing such broken table requires:

1. create empty table by any name (t_empty) with correct number
of partitions;
2. stop the server;
3. rename data files (.myd, .myi or .ibd) of broken table to t_empty
fixing the partition sequence (#p2 to #p1, #p3 to #p2);
4. start the server;
5. drop the broken table;
6. rename t_empty to correct table name.

Order to avoid prototypes:

my_get_large_page_sizes
my_next_large_page
my_init_large_pages
my_large_malloc
my_large_free

For platforms != Windows and without MMAP.

Consolidated single page size implementations by populating
my_large_page_sizes with a single page size.

The package libcurl4-dev is a virtual package, and no package with that
name actually exists. Depend on libcurl4-openssl-dev as the primary
option in case no libcurl4-dev providing package has been installed, and
if some of them (libcurl4-gnutls-dev, libcurl4-nss-dev,
libcurl4-openssl-dev ) are installed, they also satisfy the dependency
via the virtual package.

The Travis-CI still runs on libcurl3-dev as Travis-CI also runs Ubuntu
Xenial which does not yet have libcurl4 available.

This complements commit 2e0a40bd.

The package libdbd-mariadb-perl has been available in Debian September
2018, so it is already included since Debian Buster and Ubuntu Disco.

Use it as the primary Recommends for MariaDB client binaries, but keep
the MySQL variant as a fall-back in case this package gets backported to
older releases that did not yet have it.

This change was done in downstream Debian packaging in
https://salsa.debian.org/mariadb-team/mariadb-10.4/-/commit/bb4ad78bc10a1b52558c4c30600a02e30c4ce0a9

Don't include variables that are empty and unused.

This fixes Lintian errors and warnings:

E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mariadb-analyze.1
E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mariadb-optimize.1
E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mariadb-repair.1
E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mysqlanalyze.1
E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mysqloptimize.1
E: mariadb-client-10.5: manpage-not-compressed usr/share/man/man1/mysqlrepair.1
W: mariadb-client-10.5: binary-without-manpage usr/bin/mariadb-conv
W: libmariadb-dev: binary-without-manpage usr/bin/mariadb_config

If the binary name is mariadb_config, the manpage needs to be mariadb_config.1.

Also run 'wrap-and-sort -a -v' to get lists in correct order.

In addition, sort .gitignore and remove duplicate lines.

The dpkg-buildpackage has by default sensible values for --jobs and
--try-jobs, and it also inherits whatever 'parallel' is set in
DEB_BUILD_OPTIONS. Overriding it here should not be needed and removing
it is better, since it allows build systems to control the level or
parallel builds via DEB_BUILD_OPTIONS if they want, which they often do
(e.g. to avoid CPU congestion or overheating laptops).

Related:
- https://jira.mariadb.org/browse/MDEV-19780
- https://jira.mariadb.org/browse/MDEV-21944

Make package have sensible control file relations to mysql-8.0.

Also some cleanup:
- Remove obsolete versioned control relationships. When the package
  name already has a version older than current package, the extra
  version is obsolete.
- Remove obsolete postinst script that was empty
- Remove priority "extra" which is deprecated, use "optional" that
  applies for the whole source package instead.

The current debian/control file and other packaging of 10.5 targets the
latest Debian unstable. In autobake-deb.sh there are automatic build
adaptations for older Debian/Ubuntu releases.

Some adaptations were for Debian versions prior to Jessie and Ubuntu
versions prior to Trusty. Those distro releases are no longer supported
anyway, so these should be cleaned away now in the 10.5 release cycle.

Summary:
- Debian Jessie has libcrack2 release 2.9.2-1, no need to have adaptations
  for any older environments
- Debian Jessie has libpcre3-dev release 2:8.35-3.3, no need to consider
  older versions
- Systemd has been available since Debian Jessie, no need to consider
  that a Debian/Ubuntu environment would not have it available
  adaptations for environments for anything older

Regression after bfdd30d3. Initialize addition TABLE_LIST members which
are used by subsequent close_cached_tables() call.

It isn't an "option" anymore.

Make it static, coding style cleanup, declare consistently with all
callers (same ifdefs).

- Ignore system-invisible fields (as well as for setting default value);
- Handle rename of system time and period fields.

libmariadb revision updated.

This bug was introduced by MDEV-15528
commit a35b4ae8.

In the case that I analyzed, we failed to apply
an EXTENDED,INSERT_REUSE_REDUNDANT redo log record whose
preceding record points to unallocated area after PAGE_HEAP_TOP.

Had we properly written the FREE_PAGE record for the page,
recovery would have processed it, because during the checkpoint,
the log had been completely written past the LSN of the missed write.

fseg_free_page_low(): Always invoke mtr_t::free().
The other call is in fsp_free_page().

Let auto repair table and truncate table routines flush TABLE_SHARE
directly.

Part of MDEV-17882 - Cleanup refresh version

TDC_RT_REMOVE_ALL -> tdc_remove_table(). Some occurrences replaced with
TDC_element::flush() (whenver TABLE_SHARE is available).

TDC_RT_REMOVE_NOT_OWN[_KEEP_SHARE] -> TDC_element::flush(). These modes
assume that current thread owns TABLE_SHARE reference, which means we can
avoid hash lookup and flush unused TABLE instances directly.

TDC_RT_REMOVE_UNUSED -> TDC_element::flush_unused(). Only [ab]used by
mysql_admin_table() currently. Should be removed eventually.

Part of MDEV-17882 - Cleanup refresh version