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connectors experimental galera main
Vladislav Vaintroub
workaround for a test failure on windows (by serg)
Marko Mäkelä
Mariabackup: --prepare startup fixes

xtrabackup_prepare_func(): Simplify the logic. Remove the
unnecessary second InnoDB startup. Never call exit(), but
instead do proper error handling.

xb_process_datadir(): Remove the constant parameter data=NULL.
Varun Gupta
MDEV-12985: support percentile and median window functions

Finalised the synatax and have started implementing the class for the PERCENTILE_DISC
Marko Mäkelä
Mariabackup: Clean up xtrabackup options

Fix the binding of databases_file. It was incorrectly mapped
to OPT_XTRA_TABLES_FILE.

Remove some unused SSL options and variables.
Jacques Germishuys
correct include guard
Marko Mäkelä
Mariabackup: Delete the ib_logfile0 in xtrabackup --prepare

xtrabackup --prepare will only apply the redo log that was
created by xtrabackup --backup, and it will not merge the
change buffer. After the redo log has been applied, all changes
will be written back to the data files and the ib_logfile0
will be deleted.

xtrabackup --copy-back will no longer copy redo log files,
because xtrabackup --prepare will delete the sole ib_logfile0
after applying it.

xtrabackup: Remove the following options, because they do not have
any effect or do not make any sense in --backup or --prepare:
innodb_log_block_size, innodb_doublewrite_file, innodb_force_recovery.

xtrabackup: Ignore the following options:
innodb_buffer_pool_filename,
innodb_log_file_size, innodb_log_files_in_group

recv_apply_hashed_log_recs(): Disable the change buffer merge
and any redo log writes when restoring a backup. This is
necessary for the correct restore operation of incremental backups.

delete_log_files(): Refactored from create_log_files().

innobase_start_or_create_for_mysql(): When restoring a backup,
exit immediately after applying the redo log.

innodb_shutdown(): When restoring a backup, just close the files,
because there will be no high-level threads running.
Marko Mäkelä
Mariabackup: Improve a message

Mariabackup does not deal with high-level transactions or undo log.
The redo log is not only about user-level transactions; it is actually
about mini-transactions. To avoid confusion, call it the redo log,
not transaction log.
Marko Mäkelä
Mariabackup: Implement --innodb-log-checksums

xtrabackup_prepare_func(): Enable redo log checksums even if
--innodb-log-checksums=0 was specified to disable checksum checks
on the original server. In this way, the prepared backup will work
with both values of the --innodb-log-checksums parameter.
Elena Stepanova
Test changes to improve stability of results
Marko Mäkelä
Mariabackup: Allow --prepare to be run multiple times

On subsequent --prepare, there will not be any ib_logfile0
and nothing to be written to any InnoDB files.
Marko Mäkelä
Mariabackup: Clean up restart_and_restore.inc
lawrinn
Merge pull request #15 from jacquesg/include-guard

Correct include guard