(as -max scripts don't)

storage/maria/ma_blockrec.c:
  Fixed compilation failure
support-files/compiler_warnings.supp:
  Added suppressions for pbxt

More DBUG_ASSERT() to discover errors earlier
More checking of BLOCK structures in Aria.
Fixed crashing bug in Aria when doing UPDATE of several records in same block when doing table scan.

storage/federatedx/ha_federatedx.cc:
  Added missing delete_dynamic(); This fixes the valgrind warnings about lost memory discovered by buildbot.
storage/maria/ma_blockrec.c:
  Added debugging helper function _ma_print_block_info() to print block structure.
  Changed arguments to _ma_print_directory() so it can be called by _ma_print_block_info()
  check_directory() now also checks that empty_space on block is calculated correctly.
  Added some local variables to get more information about what happend when things crash.
  Fixed crashing bug when doing UPDATE of several records in same block when doing table scan.
storage/maria/ma_key_recover.c:
  Simple optimization (don't call bmove_upp() if not needed); This could happen during page split.
storage/maria/ma_recovery.c:
  Fixed compiler warning
storage/maria/ma_test2.c:
  Run test without syncing to disk. (Not needed for this test)
storage/maria/ma_write.c:
  More comments.
  Added DBUG_ASSERT() to find wrong log entires, like the one reported at LP#616344, during log file creation.
storage/maria/unittest/ma_test_recovery.pl:
  Added extra -s to maria_chk to get it more silent.
  This fixes that ma_test_all.sh works again.

More DBUG
Added convert-debug-for-diff
Added missing (from last push) federated test case

.bzrignore:
  Ignore generated files
mysql-test/README:
  Updated documentation for --extern
mysql-test/suite/federated/federated_bug_32426.result:
  Added test for federatedx
mysql-test/suite/federated/federated_bug_32426.test:
  Added test for federatedx
scripts/Makefile.am:
  Added convert-debug-for-diff
scripts/convert-debug-for-diff.sh:
  Added script for converting
sql/log.cc:
  Added DBUG
sql/mysqld.cc:
  Added DBUG
storage/maria/ma_recovery.c:
  If verbose, write dirty pages (for debugging)
storage/maria/ma_static.c:
  Added verbose mode to recovery
storage/maria/maria_def.h:
  Added verbose mode to recovery
storage/maria/maria_read_log.c:
  Added verbose mode to recovery

Patch taken from lp:~capttofu/maria/bug_571200 (originally for MariaDB 5.3, but adapted for 5.1)

Print out checked file names in maria_check -s (unless you use a second -s)
Some trivial optimizations

storage/maria/ma_bitmap.c:
  Trivial optimizations:
  - Combine common code (to be able to remove duplicate mutex_lock call)
  - Move setting of thread specific variables outside of mutex
storage/maria/ma_check.c:
  Fixed wrong argument to printf
storage/maria/maria_chk.c:
  Print out checked table names unless -s -s
storage/maria/maria_read_log.c:
  Added option --start-from-checkpoint (to help find bugs in checkpoints)

client/mysqlcheck.c:
  Added missing casts
client/mysqldump.c:
  Added missing casts
client/mysqlimport.c:
  Added missing casts
extra/my_print_defaults.c:
  Added missing casts
mysql-test/mysql-test-run.pl:
  Added suppression for non-critical warning on windows
storage/maria/maria_pack.c:
  Added missing casts
storage/xtradb/buf/buf0lru.c:
  Added missing casts
storage/xtradb/fil/fil0fil.c:
  Added missing casts
storage/xtradb/handler/i_s.cc:
  Added extra argument to call store() function for longlong.
storage/xtradb/srv/srv0srv.c:
  Added cast to suppress compiler warning
support-files/compiler_warnings.supp:
  Added suppression for some non critical compiler warnings on Windows
unittest/mytap/tap.h:
  Fixed prototypes to be same as the actual functions

maria_chk & maria_read_log now reads block size from control file.



mysql-test/suite/maria/r/maria.result:
  Updated results after trivial change of maria_chk's output
storage/maria/ma_bitmap.c:
  More DBUG_PRINT
storage/maria/ma_blockrec.c:
  Fixed bug that we didn't mark page full in bitmap if directory is full
storage/maria/ma_check.c:
  Write out if directory is full for errors in bitmap
storage/maria/ma_control_file.c:
  Don't give error for wrong block size if block size is 0
storage/maria/maria_chk.c:
  Read block size from control file
  In case of -dvv, write also out bitmap information (good for debugging)
storage/maria/maria_read_log.c:
  Read block size from control file
  Fixed that maria_read_log works with different page size than TRANSLOG_PAGE_SIZE

Added straight_join to make results predicatable

mysql-test/suite/pbxt/r/range.result:
  Added straight_join to make results predicatable
mysql-test/suite/pbxt/t/range.test:
  Added straight_join to make results predicatable
mysys/my_sync.c:
  Fixed typo

Fixed wrong argument to translog_write_record() that caused core dump in maria.maria-gis-rtree-trans and some other tests
(Bug introduced by my last push)

Fixed LP#613418 (M)aria recovery failure: ma_key_recover.c:981: _ma_apply_redo_index: Assertion `check_page_length == page_length' failed

include/my_sys.h:
  Added my_disable_sync
mysql-test/mysql-test-run.pl:
  Added --sync-sys=0 to run test suite faster
mysys/my_static.c:
  Added my_disable_sync
mysys/my_sync.c:
  Added my_disable_sync
sql/mysqld.cc:
  Added -sync-sys=0 option for mysqld to skip sync() calls for faster testing
storage/maria/ma_key_recover.c:
  More DBUG_ASSERT()
  Added logging of KEY_OP_DEBUG to make examening of logs easier
  Fixed testing of page length in recovery to ensure we don't overwrite checksum (previous tests was too relaxed)
  Fixed bug in recovery logging of split pages which caused failure during recovery:
  - Length was not adjusted properly for pages to be split
  - Added KEY_OP_MAX_PAGELENGTH to tell recovery that page is now full length
  - This fixed LP#613418
storage/maria/ma_key_recover.h:
  Changed prototype for ma_log_change() for KEY_OP_DEBUG
storage/maria/ma_loghandler.h:
  Added new enums for better debugging of recovery logs
storage/maria/ma_rt_index.c:
  Added debugging information to calls to ma_log_change()
storage/maria/ma_write.c:
  Added debugging information to calls to ma_log_change() and ma_log_split()

Ensure that xtradb & InnoDB plugin compiles if valgrind is installed but not valgrind debug libraries

This patch fixes LP#613408  Memory corruption with (M)aria storage engine and virtual columns in MariaDB 5.2
Fixed compiler warnings
Disabled some tests that doesn't work on windows (uses shell tools or strange characters)



client/mysqlshow.c:
  Fixed compiler warnings
client/mysqlslap.c:
  Fixed compiler warnings
mysql-test/mysql-test-run.pl:
  Use an error file instead of /dev/null
  (Fixes problem on Windows and the output may be usefull)
mysql-test/suite/maria/r/maria.result:
  Test case for bug LP#613408 (not complete)
mysql-test/suite/maria/t/maria.test:
  Test case for bug LP#613408 (not complete)
mysql-test/suite/percona/percona_log_slow_slave_statements-and-use_global_long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_log_slow_slave_statements.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-control_global_slow.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-log_slow_filter.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-log_slow_verbosity.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-microseconds_in_slow_query_log.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-min_examined_row_limit.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-use_global_long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/t/ctype_filesystem.test:
  This test doesn't work one windows (problem with character sets)
mysql-test/t/events_time_zone.test:
  Use longer times to get predictable tests
mysql-test/t/show_check-master.opt:
  set long query time to get more predictable tests
storage/maria/ma_check.c:
  Restore info->s->lock_key_trees after repair.
  Disable logging to temp tables for all repair cases (safety fix)
storage/maria/ma_state.c:
  Ensurethat info->state_start doesn't point to freed memory. (Could happen after running an internal repair to fast create indexes)
storage/maria/trnman.c:
  Added longer comment

Fixed compiler warnings

client/mysqlslap.c:
  Fixed compiler warnings
mysql-test/suite/maria/r/maria.result:
  Test case for LP#614265
mysql-test/suite/maria/t/maria.test:
  Test case for LP#614265
mysql-test/suite/pbxt/t/skip_name_resolve-master.opt:
  Ensure that we get restart before test (as test uses show processlist)
sql/handler.cc:
  Added cloned marker if clone was called (for safety checks & debugging)
sql/handler.h:
  Added cloned marker if clone was called (for safety checks & debugging)
storage/maria/ha_maria.cc:
  In clone call, set file->trn if cloned file had this set. This is needed as maria_create_trn_for_mysql() and thus file->trn is never set for cloned table.
  Ensure that file->trn is properly reset after calls to repair/check/zerofill.
  Increment locked table count if file->trn is set (as we decrement this in the unlock call)
tests/mysql_client_test.c:
  Fixed compiler warnings

mysql-test/suite/innodb_plugin/t/innodb-timeout.test:
  More time for test case
support-files/compiler_warnings.supp:
  Ignore compiler warning

Added option: --warning-for-wrong-transaction-id to maria_check


mysql-test/r/innodb-use-sys-malloc.result:
  Remove not used files
mysql-test/t/innodb-use-sys-malloc-master.opt:
  Remove not used files
storage/maria/ma_recovery.c:
  Added support for --lsn-end
storage/maria/ma_recovery.h:
  New prototype
storage/maria/ma_write.c:
  Added logging of KEY_OP_CHECK for all possible keyblock splits.
  (Helps us find error in log file handling)
storage/maria/maria_chk.c:
  Added option: --warning-for-wrong-transaction-id
  --update-status now resets open count if check succeds
storage/maria/maria_read_log.c:
  Added option --end-lsn for only appling part of log (good for debugging)
  Changed options to use '-' instead of '_'

mysql-test/suite/funcs_1/r/is_columns_is.result:
  Update after change of comment length
mysql-test/suite/funcs_1/r/is_engines.result:
  Update after change of comment length
mysql-test/suite/innodb_plugin/t/disabled.def:
  Disable a test that gives valgrind warnings for xtradb
mysql-test/suite/innodb_plugin/t/innodb_bug52745.test:
  Test requires persian collation

Fixed tests cases.

mysql-test/suite/percona/percona_log_slow_slave_statements.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-control_global_slow.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-control_global_slow.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-log_slow_filter.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-log_slow_filter.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-log_slow_verbosity.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-log_slow_verbosity.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-long_query_time.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-long_query_time.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-microseconds_in_slow_query_log.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-microseconds_in_slow_query_log.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-min_examined_row_limit.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-min_examined_row_limit.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-use_global_long_query_time.result:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/percona/percona_slow_query_log-use_global_long_query_time.test:
  Replaced 'grep | wc -l' with 'grep -c' as output of wc -l is not portable (for example on Mac)
mysql-test/suite/rpl/r/rpl_stm_until.result:
  Updated results
mysql-test/suite/rpl/t/rpl_stm_until.test:
  Fixed random failure in test suite: master could be reading data from master-bin.00001 at the same time as test suite was changing it.

Fixed some wrong test cases
Fixed bug in null handling in XtraDB


extra/comp_err.c:
  Fixed compiler warnings
extra/my_print_defaults.c:
  Fixed compiler warnings
mysql-test/suite/binlog/t/binlog_killed.test:
  Added support for timeouts
mysql-test/suite/funcs_1/r/is_columns_is.result:
  Updated results (INNODB_SYS_TABLES had got new column)
scripts/mysql_install_db.sh:
  Fixed typo
sql/mysql_priv.h:
  Removed not needed argument for compare_record()
sql/sql_insert.cc:
  Removed not needed argument for compare_record()
sql/sql_update.cc:
  Removed not needed argument for compare_record()
  The argument is not needed becasue we copy the full record[0] to record[1] and the comparison should work even if all columns are not read
sql/table.cc:
  The comparison of rows is independent of HA_PARTIAL_COLUMN_READ
storage/maria/maria_chk.c:
  Fixed compiler warnings
storage/maria/maria_read_log.c:
  Fixed compiler warnings
storage/myisam/myisamchk.c:
  Fixed compiler warnings
storage/myisam/myisampack.c:
  Fixed compiler warnings
storage/xtradb/dict/dict0load.c:
  Fixed compiler warnings
storage/xtradb/row/row0sel.c:
  Fixed null handling in XtraDB. (See comment)
storage/xtradb/trx/trx0sys.c:
  Fixed compiler warnings
support-files/compiler_warnings.supp:
  Fixed compiler warnings

This was triggered by innodb.innodb_multi_update, where we had a static length row without nulls and xtradb didn't fill in the delete-marker byte


include/my_bitmap.h:
  Added prototype for bitmap_union_is_set_all()
mysys/my_bitmap.c:
  Added function to check if union of two bit maps covers all bits.
sql/mysql_priv.h:
  Updated protype for compare_record()
sql/sql_insert.cc:
  Send to compare_record() flag if all fields are used.
sql/sql_select.cc:
  Set share->null_bytes_for_compare.
sql/sql_update.cc:
  In compare_record() don't use the fast cmp_record() (which is basically memcmp) if we don't know that all fields exists.
  Don't compare the null_bytes if there is no data there.
sql/table.cc:
  Store in share->null_bytes_for_compare the number of bytes that has null or bit fields (but not delete marker)
  Store in can_cmp_whole_record if we can use memcmp() (assuming all rows are read) to compare rows in compare_record()
sql/table.h:
  Added two elements in table->share to speed up checking how updated rows can be compared.

Added --strace support to mysql-test-run

mysql-test/mysql-test-run.pl:
  Added support for --strace (usefull for example to check how much memory mysqld was using)
mysql-test/suite/funcs_1/t/is_engines_innodb.test:
  Fixed test case to also work with xtradb
mysql-test/suite/innodb_plugin/t/innodb.test:
  Don't run if we don't have the used character sets.
mysql-test/suite/innodb_plugin/t/innodb_mysql.test:
  Don't run if we don't have the used character sets.
sql/sql_show.cc:
  Extended comment to 160 characters to get full comment from xtradb
storage/xtradb/handler/ha_innodb.cc:
  Fixed valgrind warning.

If one compiles innodb_plugin, then the tests in suite/innodb_plugin will use the plugin. If not and xtradb is used, the tests will use xtradb.



mysql-test/include/have_innodb_plugin.inc:
  Test both for innodb_plugin and xtradb
mysql-test/include/have_real_innodb_plugin.inc:
  Test if we are using innodb_plugin (but not xtradb)
mysql-test/include/have_xtradb.inc:
  Test if xtradb is used
mysql-test/lib/mtr_cases.pm:
  Enable easy testing of innodb_plugin
mysql-test/mysql-test-run.pl:
  Added supression for difference between xtradb & innodb_plugin
mysql-test/suite/innodb_plugin/r/innodb-index-ip.result:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb-index-xb.result:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb-index.result:
  Move tests away that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb-ip.result:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb-xb.result:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb.result:
  Move tests away that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/r/innodb_bug21704-xb.result:
  Test result differ for xtradb
mysql-test/suite/innodb_plugin/r/innodb_bug46000.result:
  Remove (not needed) error message not given by MariaDB
mysql-test/suite/innodb_plugin/r/innodb_bug49164-xb.result:
  Test result differs for xtradb
mysql-test/suite/innodb_plugin/r/innodb_bug49164.result:
  Update results
mysql-test/suite/innodb_plugin/r/innodb_bug53591.result:
  Remove (not needed) error message not given by MariaDB
mysql-test/suite/innodb_plugin/r/innodb_bug54679.result:
  Updated result file
mysql-test/suite/innodb_plugin/r/innodb_mysql.result:
  Updated result file
mysql-test/suite/innodb_plugin/t/disabled.def:
  Disable some tests that depends on newer version of XtraDB
mysql-test/suite/innodb_plugin/t/innodb-index-ip.test:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb-index-xb.test:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb-index.test:
  Move tests away that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb-ip.test:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb-xb.test:
  Tests from innodb-index that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb.test:
  Move tests away that gave different results for innodb_plugin and xtradb
mysql-test/suite/innodb_plugin/t/innodb_bug21704-xb.test:
  Test result differ for xtradb
mysql-test/suite/innodb_plugin/t/innodb_bug21704.test:
  Test result differ for xtradb
mysql-test/suite/innodb_plugin/t/innodb_bug53591.test:
  Test results only makes sence for innodb_plugin (things works ok for xtradb)
sql/sql_table.cc:
  Don't set HA_CREATE_USED_ROW_FORMAT for create table (only for update_create_info) if ROW_FORMAT is not used.
storage/innodb_plugin/handler/ha_innodb.cc:
  Fixed wrong error message from innodb.
  This is needed as MariaDB properly handles errors from ha_index_init()
storage/xtradb/handler/ha_innodb.cc:
  Update base information for XtraDB so that one can use informationschema.plugins to check if one is using XtraDB

Speed up some PBXT tests by adding begin...commit around creating of testing tables.

include/my_base.h:
  Fixed wrong constant
mysql-test/mysql-test-run.pl:
  Print MariaDB instead of MySQL
mysql-test/r/range.result:
  Move test that required partitions to parts.optimizer
mysql-test/suite/innodb_plugin/t/disabled.def:
  Disable test that causes valgrind warning about not released memory in xtradb
mysql-test/suite/parts/r/optimizer.result:
  Moved from range.result
mysql-test/suite/parts/t/optimizer.test:
  Moved from range.test
mysql-test/suite/pbxt/r/join_nested.result:
  Updated results after optimizer changes
mysql-test/suite/pbxt/r/renamedb.result:
  Updated test for new error message
mysql-test/suite/pbxt/t/check.test:
  Speed up test
mysql-test/suite/pbxt/t/count_distinct2.test:
  Speed up test
mysql-test/suite/pbxt/t/derived.test:
  Speed up test
mysql-test/suite/pbxt/t/renamedb.test:
  Updated test for new error message
mysql-test/suite/rpl/r/rpl_log_pos.result:
  Updated results
mysql-test/suite/rpl/t/rpl_log_pos.test:
  Update test to read from a position that has 'known wrong' data.
  The orignal test read a timestamp, so the error message could differ between runs.
mysql-test/suite/rpl/t/rpl_temporary_errors.test:
  Sync to slave to make test predictable
mysql-test/t/events_time_zone.test:
  Extend wait to make test predictable
mysql-test/t/range.test:
  Move test that required partitions to parts.optimizer
sql/sql_list.h:
  Fixed compiler warning
sql/sql_load.cc:
  buffer was not freed in some error conditions
tests/mysql_client_test.c:
  Fixed compiler warning

Added 'Aria' as an alias for the Maria storage engine. Real rename is happening in 5.2

sql/handler.cc:
  Added 'Aria' as an alias for the Maria storage engine.

Fixed Bug#52005 'JOIN_TAB->dependent' may be incorrectly propageted for multilevel outer joins' in a better way (patch from Sergey Petrunya)

Fix for LP#602604: RQG: ma_blockrec.c:6187: _ma_apply_redo_insert_row_head_or_tail: Assertion `0' failed on Maria engine recovery
More DBUG_PRINT (to simplify future debugging)
Aria: Added STATE_IN_REPAIR, which is set on start of repair. This allows us to see if 'crashed' flag was set intentionally.
Aria: Some trivial speedup optimization
Aria: Better warning if table was marked crashed by unfinnished repair


mysql-test/lib/v1/mysql-test-run.pl:
  Fix so one can run RQG
mysql-test/suite/maria/r/maria-recovery2.result:
  Update for new error message.
mysys/stacktrace.c:
  Fixed compiler warning
storage/maria/ha_maria.cc:
  More DBUG_PRINT
  Added STATE_IN_REPAIR flag, which is set on start of repair. This allows us to see if 'crashed' flag was set intentionally.
  Don't log query for dropping temporary table.
storage/maria/ha_maria.h:
  Added prototype for drop_table()
storage/maria/ma_blockrec.c:
  More DBUG_PRINT
  Make read_long_data() inline for most cases. (Trivial speedup optimization)
storage/maria/ma_check.c:
  Better warning if table was marked crashed by unfinnished repair
storage/maria/ma_open.c:
  More DBUG_PRINT
storage/maria/ma_recovery.c:
  Give warning if found crashed table.
  Changed warning for tables that can't be opened.
storage/maria/ma_recovery_util.c:
  Write warnings to DBUG file
storage/maria/maria_chk.c:
  Added STATE_IN_REPAIR flag, which is set on start of repair. This allows us to see if 'crashed' flag was set intentionally.
storage/maria/maria_def.h:
  Added maria_mark_in_repair(x)
storage/maria/maria_read_log.c:
  Added option: --character-sets-dir
storage/maria/trnman.c:
  By default set min_read_from to max value.
  This allows us to remove TRN:s from rows during recovery to get more space.
  This fixes bug LP#602604: RQG: ma_blockrec.c:6187: _ma_apply_redo_insert_row_head_or_tail: Assertion `0' failed on Maria engine recovery