Merge 10.6 into 10.7

debian/mariadb-test-data.lintian-overrides

@@ -1,6 +1,13 @@
 # These should be moved, see https://jira.mariadb.org/browse/MDEV-21654
 arch-dependent-file-in-usr-share usr/share/mysql/mysql-test/suite/plugins/pam/pam_mariadb_mtr.so
 arch-independent-package-contains-binary-or-object usr/share/mysql/mysql-test/suite/plugins/pam/pam_mariadb_mtr.so
+# Mainly for support for *BSD family. Not right way to do but this is test package and not for production
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/std_data/checkDBI_DBD-MariaDB.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/suite/engines/rr_trx/run_stress_tx_rr.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/suite/funcs_1/lib/DataGen_local.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/suite/funcs_1/lib/DataGen_modify.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/suite/funcs_2/lib/gen_charset_utf8.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/suite/rpl/extension/checksum.pl]
 # Intentional for test files
 national-encoding usr/share/mysql/mysql-test/*
 # Extra test documentation files that really need to be kept in context in test directory

debian/mariadb-test.lintian-overrides

@@ -1,3 +1,8 @@
 # These should be moved, see https://jira.mariadb.org/browse/MDEV-21653
 arch-dependent-file-in-usr-share usr/share/mysql/mysql-test/lib/My/SafeProcess/my_safe_process
 arch-dependent-file-in-usr-share usr/share/mysql/mysql-test/lib/My/SafeProcess/wsrep_check_version
+# Mainly for support for *BSD family. Not right way to do but this is test package and not for production
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/lib/process-purecov-annotations.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/lib/v1/mysql-test-run.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/mysql-stress-test.pl]
+incorrect-path-for-interpreter /usr/bin/env perl != /usr/bin/perl [usr/share/mysql/mysql-test/mysql-test-run.pl]

debian/source/lintian-overrides

@@ -4,23 +4,82 @@ version-substvar-for-external-package mariadb-client-core-10.7 -> mysql-client-5
 version-substvar-for-external-package mariadb-server-10.7 -> mysql-server
 version-substvar-for-external-package libmariadb-dev -> libmysqlclient-dev
 version-substvar-for-external-package libmariadb-dev -> libmysqld-dev
-version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-5.5
-version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-5.6
-version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-5.7
-version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-8.0
-version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-5.1
-version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-5.5
-version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-5.6
-version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-5.7
-version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-8.0
+version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-5.*
+version-substvar-for-external-package mariadb-server-10.7 -> mysql-client-8.*
+version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-5.*
+version-substvar-for-external-package mariadb-client-10.7 -> mysql-client-core-8.*
 version-substvar-for-external-package libmariadbd-dev -> libmariadbclient-dev
 # ColumnStore not used in Debian, safe to ignore. Reported upstream in https://jira.mariadb.org/browse/MDEV-24124
 source-is-missing storage/columnstore/columnstore/utils/jemalloc/libjemalloc.so.2
 # Must be fixed upstream
-source-is-missing storage/mroonga/vendor/groonga/examples/dictionary/html/js/jquery-ui-1.8.18.custom.js*
+source-is-missing storage/mroonga/vendor/groonga/examples/dictionary/html/js/jquery-ui-*.custom.js
 # Intentional control relationships
-version-substvar-for-external-package Replaces * ${source:Version} libmariadbd-dev -> libmariadbclient-dev
-version-substvar-for-external-package Replaces * ${source:Version} libmariadb-dev -> libmysqlclient-dev
-version-substvar-for-external-package Replaces * ${source:Version} libmariadb-dev -> libmysqld-dev
+version-substvar-for-external-package Replaces * libmariadbd-dev -> libmariadbclient-dev
+version-substvar-for-external-package Replaces * libmariadb-dev -> libmysqlclient-dev
+version-substvar-for-external-package Replaces * libmariadb-dev -> libmysqld-dev
 # We can't change build dependencies on a stable branch (10.5..10.8) so just override this
 missing-build-dependency-for-dh-addon systemd *
+# Data or test files where long lines are justified
+very-long-line-length-in-source-file *.test *
+very-long-line-length-in-source-file *.result *
+very-long-line-length-in-source-file BUILD/compile-*
+very-long-line-length-in-source-file *COPYING.rtf *
+# These are mainly found under extra/wolfssl
+very-long-line-length-in-source-file *.cproject *
+very-long-line-length-in-source-file *.md *
+very-long-line-length-in-source-file *.scfg *
+very-long-line-length-in-source-file *.launch *
+very-long-line-length-in-source-file extra/wolfssl/wolfssl/IDE/Espressif/ESP-IDF/test/test_wolfssl.c *
+very-long-line-length-in-source-file extra/wolfssl/wolfssl/configure.ac *
+very-long-line-length-in-source-file extra/wolfssl/wolfssl/doc/formats/html/html_changes/tabs.css *
+# Preprocessed C files which have long lines
+very-long-line-length-in-source-file extra/wolfssl/wolfssl/wolfcrypt/src/*.i *
+# These are all results for test cases and similar so they can be
+# especially formatted to be too long
+very-long-line-length-in-source-file mysql-test/*.dump *
+very-long-line-length-in-source-file mysql-test/*.inc *
+very-long-line-length-in-source-file mysql-test/*.rdiff *
+very-long-line-length-in-source-file mysql-test/*.txt *
+very-long-line-length-in-source-file mysql-test/*.weekly *
+# Test file
+very-long-line-length-in-source-file plugin/handler_socket/regtest/test_01_lib/test19.expected *
+# SQL source file that has very long inserts/selects
+very-long-line-length-in-source-file mysql-test/std_data/init_file_longline_3816.sql *
+very-long-line-length-in-source-file scripts/fill_help_tables.sql *
+very-long-line-length-in-source-file scripts/mysql_system_tables.sql *
+very-long-line-length-in-source-file scripts/mysql_test_data_timezone.sql *
+# Machine formated HTML
+very-long-line-length-in-source-file sql/share/charsets/languages.html *
+very-long-line-length-in-source-file sql/share/errmsg-utf8.txt *
+# Very long test string
+very-long-line-length-in-source-file storage/archive/archive_test.c line 30 is 1051 characters long (>512)
+# autogenerated thrift file
+very-long-line-length-in-source-file storage/cassandra/gen-cpp/cassandra_types.h *
+# ColumnStore ignores
+# In Directory mysql-test are some long test includes
+very-long-line-length-in-source-file storage/columnstore/columnstore/.drone.jsonnet *
+very-long-line-length-in-source-file storage/columnstore/columnstore/CMakeLists.txt *
+very-long-line-length-in-source-file storage/columnstore/columnstore/mysql-test/columnstore/csinternal/include/autopilot_create_datatypetestm_tables.inc *
+very-long-line-length-in-source-file storage/columnstore/columnstore/mysql-test/columnstore/csinternal/include/autopilot_create_datatypeupdate_table.inc *
+very-long-line-length-in-source-file storage/columnstore/columnstore/*.xmi *
+very-long-line-length-in-source-file storage/columnstore/columnstore/dbcon/doc/q19_plan.txt *
+very-long-line-length-in-source-file storage/columnstore/columnstore/utils/udfsdk/docs/source/reference/mcsv1Context.rst *
+very-long-line-length-in-source-file storage/columnstore/columnstore/utils/winport/win_setup_mysql_part1.sql *
+# Minified CSS files. These appear in several places
+very-long-line-length-in-source-file *badge_only.css *
+very-long-line-length-in-source-file *theme.css line *
+# General storage ignores
+very-long-line-length-in-source-file storage/mroonga/vendor/groonga/examples/dictionary/html/css/smoothness/jquery-ui-1.8.12.custom.css *
+very-long-line-length-in-source-file storage/rocksdb/mysql-test/rocksdb/t/bypass_select_basic_bloom-master.opt *
+very-long-line-length-in-source-file storage/rocksdb/mysql-test/rocksdb/t/type_enum.inc *
+very-long-line-length-in-source-file storage/rocksdb/mysql-test/rocksdb/t/type_set.inc *
+very-long-line-length-in-source-file storage/rocksdb/rocksdb/docs/_includes/footer.html *
+very-long-line-length-in-source-file storage/rocksdb/rocksdb/docs/_posts/*.markdown line *
+very-long-line-length-in-source-file storage/spider/mysql-test/spider/bugfix/include/sql_mode_init.inc *
+very-long-line-length-in-source-file storage/tokudb/PerconaFT/cmake_modules/TokuBuildTagDatabases.cmake *
+very-long-line-length-in-source-file storage/tokudb/PerconaFT/third_party/xz-4.999.9beta/m4/po.m4 *
+# These are generated files which should not make any harm
+source-contains-autogenerated-visual-c++-file storage/columnstore/columnstore/*.rc
+source-contains-autogenerated-visual-c++-file storage/columnstore/columnstore/*.h
+source-contains-autogenerated-visual-c++-file win/upgrade_wizard/resource.h
+source-contains-autogenerated-visual-c++-file win/upgrade_wizard/upgrade.rc

mysql-test/suite/innodb/r/dropdb_cs.result

@@ -0,0 +1,16 @@
+#
+# MDEV-28802 DROP DATABASE in InnoDB still is case-insensitive
+#
+SET @save_fpt=@@GLOBAL.innodb_file_per_table;
+SET GLOBAL innodb_file_per_table=0;
+CREATE DATABASE Db;
+CREATE TABLE Db.t1 (c1 INT KEY) ENGINE=InnoDB;
+CREATE DATABASE DB;
+DROP DATABASE DB;
+SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'D%';
+NAME
+Db/t1
+DROP DATABASE Db;
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'D%';
+TABLE_ID	NAME	FLAG	N_COLS	SPACE	ROW_FORMAT	ZIP_PAGE_SIZE	SPACE_TYPE
+SET GLOBAL innodb_file_per_table=@save_fpt;

mysql-test/suite/innodb/t/dropdb_cs.test

@@ -0,0 +1,17 @@
+--source include/have_innodb.inc
+--source include/have_case_sensitive_file_system.inc
+
+--echo #
+--echo # MDEV-28802 DROP DATABASE in InnoDB still is case-insensitive
+--echo #
+
+SET @save_fpt=@@GLOBAL.innodb_file_per_table;
+SET GLOBAL innodb_file_per_table=0;
+CREATE DATABASE Db;
+CREATE TABLE Db.t1 (c1 INT KEY) ENGINE=InnoDB;
+CREATE DATABASE DB;
+DROP DATABASE DB;
+SELECT NAME FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'D%';
+DROP DATABASE Db;
+SELECT * FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE NAME LIKE 'D%';
+SET GLOBAL innodb_file_per_table=@save_fpt;

mysql-test/suite/innodb_fts/r/concurrent_insert.result

@@ -19,7 +19,7 @@ INSERT INTO t2 VALUES('mariadb');
 connection default;
 SET @saved_dbug = @@GLOBAL.debug_dbug;
 SET GLOBAL debug_dbug ='+d,fts_instrument_sync_request,ib_optimize_wq_hang';
-SET DEBUG_SYNC= 'fts_instrument_sync_request
+SET DEBUG_SYNC= 'fts_sync_end
 		 SIGNAL drop_index_start WAIT_FOR sync_op';
 INSERT INTO t1 VALUES('Keyword');
 connect con1,localhost,root,,,;

mysql-test/suite/innodb_fts/r/sync.result

@@ -11,19 +11,19 @@ INSERT INTO t1(title) VALUES('database');
 connection con1;
 SET @old_dbug = @@SESSION.debug_dbug;
 SET debug_dbug = '+d,fts_instrument_sync_debug';
-SET DEBUG_SYNC= 'fts_write_node SIGNAL written WAIT_FOR selected';
+SET DEBUG_SYNC= 'fts_sync_end SIGNAL written WAIT_FOR selected';
 INSERT INTO t1(title) VALUES('mysql database');
 connection default;
 SET DEBUG_SYNC= 'now WAIT_FOR written';
 SET GLOBAL innodb_ft_aux_table="test/t1";
 SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_CACHE;
 WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
+SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
+WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
 database	2	3	2	2	0
 database	2	3	2	3	6
 mysql	1	3	2	1	0
 mysql	1	3	2	3	0
-SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
-WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
 SET GLOBAL innodb_ft_aux_table=default;
 SELECT * FROM t1 WHERE MATCH(title) AGAINST('mysql database');
 FTS_DOC_ID	title
@@ -59,7 +59,7 @@ INSERT INTO t1(title) VALUES('mysql');
 INSERT INTO t1(title) VALUES('database');
 connection con1;
 SET debug_dbug = '+d,fts_instrument_sync_debug';
-SET DEBUG_SYNC= 'fts_write_node SIGNAL written WAIT_FOR inserted';
+SET DEBUG_SYNC= 'fts_sync_end SIGNAL written WAIT_FOR inserted';
 INSERT INTO t1(title) VALUES('mysql database');
 connection default;
 SET DEBUG_SYNC= 'now WAIT_FOR written';
@@ -70,14 +70,14 @@ SET debug_dbug = @old_dbug;
 SET GLOBAL innodb_ft_aux_table="test/t1";
 SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_CACHE;
 WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
+database	4	4	1	4	6
+mysql	4	4	1	4	0
 SELECT * FROM INFORMATION_SCHEMA.INNODB_FT_INDEX_TABLE;
 WORD	FIRST_DOC_ID	LAST_DOC_ID	DOC_COUNT	DOC_ID	POSITION
 database	2	3	2	2	0
 database	2	3	2	3	6
-database	4	4	1	4	6
-mysql	1	4	3	1	0
-mysql	1	4	3	3	0
-mysql	1	4	3	4	0
+mysql	1	3	2	1	0
+mysql	1	3	2	3	0
 SET GLOBAL innodb_ft_aux_table=default;
 SELECT * FROM t1 WHERE MATCH(title) AGAINST('mysql database');
 FTS_DOC_ID	title

mysql-test/suite/innodb_fts/r/sync_block.result

@@ -30,6 +30,7 @@ connection con1;
 connection con2;
 /* conneciton con2 */ SELECT * FROM t1 WHERE MATCH(title) AGAINST('mysql database');
 FTS_DOC_ID	title
+1	mysql database
 connection default;
 # make con1 & con2 show up in mysql.slow_log
 SELECT SLEEP(2);
@@ -39,41 +40,11 @@ SLEEP(2)
 SELECT sql_text FROM mysql.slow_log WHERE query_time >= '00:00:02';
 sql_text
 INSERT INTO t1(title) VALUES('mysql database')
+SELECT * FROM t1 WHERE MATCH(title) AGAINST('mysql database')
 SET GLOBAL debug_dbug = @old_debug;
 TRUNCATE TABLE mysql.slow_log;
 DROP TABLE t1;
-# Case 2: Sync blocks DML(insert) on other tables.
-CREATE TABLE t1 (
-FTS_DOC_ID BIGINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
-title VARCHAR(200),
-FULLTEXT(title)
-) ENGINE = InnoDB;
-CREATE TABLE t2(id INT);
-connection con1;
-SET GLOBAL debug_dbug='+d,fts_instrument_sync_request,fts_instrument_sync_sleep';
-SET DEBUG_SYNC= 'fts_instrument_sync_request SIGNAL begin WAIT_FOR continue';
-INSERT INTO t1(title) VALUES('mysql database');
-connection con2;
-SET DEBUG_SYNC= 'now WAIT_FOR begin';
-INSERT INTO t2 VALUES(1);
-connection default;
-SET DEBUG_SYNC= 'now SIGNAL continue';
-connection con1;
-/* connection con1 */ INSERT INTO t1(title) VALUES('mysql database');
-connection con2;
-/* conneciton con2 */ INSERT INTO t2 VALUES(1);
-connection default;
-SET DEBUG_SYNC = 'RESET';
-# make con1 & con2 show up in mysql.slow_log
-SELECT SLEEP(2);
-SLEEP(2)
-0
-# slow log results should be empty here.
-SELECT sql_text FROM mysql.slow_log WHERE query_time >= '00:00:02';
-sql_text
-SET GLOBAL debug_dbug = @old_debug;
-TRUNCATE TABLE mysql.slow_log;
-DROP TABLE t1,t2;
+SET DEBUG_SYNC=RESET;
 disconnect con1;
 disconnect con2;
 # Restore slow log settings.

mysql-test/suite/innodb_fts/t/concurrent_insert.test

@@ -31,7 +31,7 @@ INSERT INTO t2 VALUES('mariadb');
 connection default;
 SET @saved_dbug = @@GLOBAL.debug_dbug;
 SET GLOBAL debug_dbug ='+d,fts_instrument_sync_request,ib_optimize_wq_hang';
-SET DEBUG_SYNC= 'fts_instrument_sync_request
+SET DEBUG_SYNC= 'fts_sync_end
 		 SIGNAL drop_index_start WAIT_FOR sync_op';
 send INSERT INTO t1 VALUES('Keyword');
 

mysql-test/suite/innodb_fts/t/sync.test

@@ -26,7 +26,7 @@ connection con1;
 SET @old_dbug = @@SESSION.debug_dbug;
 SET debug_dbug = '+d,fts_instrument_sync_debug';
 
-SET DEBUG_SYNC= 'fts_write_node SIGNAL written WAIT_FOR selected';
+SET DEBUG_SYNC= 'fts_sync_end SIGNAL written WAIT_FOR selected';
 
 send INSERT INTO t1(title) VALUES('mysql database');
 
@@ -73,7 +73,7 @@ connection con1;
 
 SET debug_dbug = '+d,fts_instrument_sync_debug';
 
-SET DEBUG_SYNC= 'fts_write_node SIGNAL written WAIT_FOR inserted';
+SET DEBUG_SYNC= 'fts_sync_end SIGNAL written WAIT_FOR inserted';
 
 send INSERT INTO t1(title) VALUES('mysql database');
 

mysql-test/suite/innodb_fts/t/sync_block.test

@@ -65,53 +65,7 @@ SET GLOBAL debug_dbug = @old_debug;
 TRUNCATE TABLE mysql.slow_log;
 
 DROP TABLE t1;
-
---echo # Case 2: Sync blocks DML(insert) on other tables.
-CREATE TABLE t1 (
-        FTS_DOC_ID BIGINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
-        title VARCHAR(200),
-        FULLTEXT(title)
-) ENGINE = InnoDB;
-
-CREATE TABLE t2(id INT);
-
-connection con1;
-
-SET GLOBAL debug_dbug='+d,fts_instrument_sync_request,fts_instrument_sync_sleep';
-
-SET DEBUG_SYNC= 'fts_instrument_sync_request SIGNAL begin WAIT_FOR continue';
-
-send INSERT INTO t1(title) VALUES('mysql database');
-
-connection con2;
-
-SET DEBUG_SYNC= 'now WAIT_FOR begin';
-
-send INSERT INTO t2 VALUES(1);
-
-connection default;
-SET DEBUG_SYNC= 'now SIGNAL continue';
-
-connection con1;
---echo /* connection con1 */ INSERT INTO t1(title) VALUES('mysql database');
---reap
-
-connection con2;
---echo /* conneciton con2 */ INSERT INTO t2 VALUES(1);
---reap
-
-connection default;
-SET DEBUG_SYNC = 'RESET';
--- echo # make con1 & con2 show up in mysql.slow_log
-SELECT SLEEP(2);
--- echo # slow log results should be empty here.
-SELECT sql_text FROM mysql.slow_log WHERE query_time >= '00:00:02';
-
-SET GLOBAL debug_dbug = @old_debug;
-TRUNCATE TABLE mysql.slow_log;
-
-DROP TABLE t1,t2;
-
+SET DEBUG_SYNC=RESET;
 disconnect con1;
 disconnect con2;
 

mysql-test/suite/parts/inc/part_alter_values.inc

@@ -78,3 +78,11 @@ if (`SELECT IF('$engine' != 'InnoDB', 1, 0)`)
 
 --remove_files_wildcard $MYSQLTEST_VARDIR/tmp/mdev_27065 *
 --rmdir $MYSQLTEST_VARDIR/tmp/mdev_27065
+
+--echo #
+--echo # MDEV-26127 Assertion `err != DB_DUPLICATE_KEY' failed or InnoDB: Failing assertion: id != 0 on ALTER ... REBUILD PARTITION
+--echo #
+--eval CREATE TABLE t1 (c INT) ENGINE=$engine PARTITION BY KEY(c) PARTITIONS 4;
+LOCK TABLES t1 WRITE, t1 AS a READ;
+ALTER TABLE t1 REBUILD PARTITION p0;
+DROP TABLE t1;

mysql-test/suite/parts/r/partition_alter_innodb.result

@@ -62,6 +62,13 @@ Warnings:
 Warning	1618	<DATA DIRECTORY> table option of old schema is ignored
 DROP TABLE t1;
 #
+# MDEV-26127 Assertion `err != DB_DUPLICATE_KEY' failed or InnoDB: Failing assertion: id != 0 on ALTER ... REBUILD PARTITION
+#
+CREATE TABLE t1 (c INT) ENGINE=InnoDB PARTITION BY KEY(c) PARTITIONS 4;;
+LOCK TABLES t1 WRITE, t1 AS a READ;
+ALTER TABLE t1 REBUILD PARTITION p0;
+DROP TABLE t1;
+#
 # MDEV-28079 Shutdown hangs after altering innodb partition fts table
 #
 CREATE TABLE t1(f1 INT, f2 CHAR(100))ENGINE=InnoDB PARTITION BY HASH(f1) PARTITIONS 2;

mysql-test/suite/parts/r/partition_alter_maria.result

@@ -95,3 +95,10 @@ PARTITION p1 VALUES LESS THAN MAXVALUE
 Warnings:
 Warning	1618	<INDEX DIRECTORY> table option of old schema is ignored
 DROP TABLE t2;
+#
+# MDEV-26127 Assertion `err != DB_DUPLICATE_KEY' failed or InnoDB: Failing assertion: id != 0 on ALTER ... REBUILD PARTITION
+#
+CREATE TABLE t1 (c INT) ENGINE=Aria PARTITION BY KEY(c) PARTITIONS 4;;
+LOCK TABLES t1 WRITE, t1 AS a READ;
+ALTER TABLE t1 REBUILD PARTITION p0;
+DROP TABLE t1;

mysql-test/suite/parts/r/partition_alter_myisam.result

@@ -68,6 +68,13 @@ PARTITION p1 VALUES LESS THAN MAXVALUE
 Warnings:
 Warning	1618	<INDEX DIRECTORY> table option of old schema is ignored
 DROP TABLE t2;
+#
+# MDEV-26127 Assertion `err != DB_DUPLICATE_KEY' failed or InnoDB: Failing assertion: id != 0 on ALTER ... REBUILD PARTITION
+#
+CREATE TABLE t1 (c INT) ENGINE=MyISAM PARTITION BY KEY(c) PARTITIONS 4;;
+LOCK TABLES t1 WRITE, t1 AS a READ;
+ALTER TABLE t1 REBUILD PARTITION p0;
+DROP TABLE t1;
 create table t1 ( c1 int, c2 int, c3 varchar(100)) delay_key_write=1
 partition by key(c1) (
 partition p01 data directory = 'MYSQL_TMP_DIR'