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MDEV-27107
prevent two mariadb-upgrade running in parallelMDEV-26989
PCRE2 download URL is invalid
Unreleased mutex in the exec_relay_log_event() function
Auxilary fts table evicts during DDLMDEV-26898
2021 Q4 release merge
JSON histograms become invalid with a specific (corrupt) value in table
rpl.rpl_shutdown_wait_slaves fails with timeout on sync_with_master
Fedora 33/34 in the foundation buildbot is missing lzo and bzip2
InnoDB number of trx pools note improvement
Session tracking flag in OK_PACKET
FOREIGN KEY…SET NULL corrupts an index on a virtual column
fts_optimize_thread cannot keep up with workload
JSON Histograms: point selectivity estimates are off for non-existent values
DELETE returns ROW_NUMBER=1 for every row upon ER_TRUNCATED_WRONG_VALUE
ROW_NUMBER is not set and differs from the message upon WARN_DATA_TRUNCATED produced by inplace ALTER
ROW_NUMBER is not set and differs from the message upon ER_WRONG_VALUE_COUNT_ON_ROW for the 1st row
ROW_NUMBER differs from the number in the error message upon ER_WARN_DATA_OUT_OF_RANGE
Missed statement rollback in case transaction drops or create temporary table
ROW_NUMBER in SIGNAL/RESIGNAL causes a syntax error
Wrong ROW_NUMBER in diagnostics upon INSERT IGNORE with CHECK violation
Spinning on buf_pool.page_hash is wasting CPU cycles
Duplicated computations of buf_pool.page_hash addresses
Server crash in Charset::charset / Item_func_natural_sort_key::val_str
Valgrind/MSAN errors in Column_statistics_collected::finish, main.statistics_json fails
Natural sort does not work for utf32/utf16/ucs2
InnoDB writes error messages about compressed tables upon startup
MariaBackup does not recognize added providers upon prepare of incremental backup
MariaBackup prepare crashes with invalid pointer with compression providers and extra options
MariaBackup logs compression provider plugins as encryption plugin
Inserting NULL into base column breaks NATURAL_SORT_KEY column
Hyphens inside the value of uuid datatype
Compression provider unloading at runtime has no effect but doesn't produce a warning
MariaBackup backup does not work with compression providers
InnoDB DDL fails with DUPLICATE KEY error
Server crashes when rename table and alter storage engine
main.mysql_client_test test_mdev19838 fails with MemorySanitizer
Make libmariadb run under MSAN
Estimation for filtered rows is far off with JSON_HB histogram
Assertion `field->type_handler() == this' failed in FixedBinTypeBundle<NATIVE_LEN, MAX_CHAR_LEN>::Type_handler_fbt::stored_field_cmp_to_item
Outdated VARIABLE_COMMENT for HISTOGRAM_TYPE in I_S.SYSTEM_VARIABLES and help
Assertion `0' failed in Item::val_native
Endless loop in json_escape_to_string upon collecting JSON histograms with empty string in a column
JSON histograms become invalid due to not properly quoted values
JSON histogram may contain bucketS than histogram_size allows
ROW_NUMBER is wrong upon INSERT or UPDATE on Spider table
SFORMAT: Pass down FLOAT as FLOAT, without upcast to DOUBLE
Unexpected ROW_NUMBER in a condition raised by a diagnostics statement
slave lock timeout with xa and gap locks
ROW_NUMBER is not available within compound statement blocks
Store UUIDs in a more efficient manner