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connectors experimental galera main
fff9cb2b2916...
fff9cb2b2916e943446fbd303fa19ccf94851ad9
Sergei Golubchik
MDEV-31024 Server crash / ASAN use-after-poison in Binary_string::free_buffer / Item_func_sformat::~Item_func_sformat

re-allocate Item_func_sformat::val_arg in shallow_copy()
to keep it in the same memroot as the item.
ece0a91c1b51...
ece0a91c1b510818e90ba7a071c0c78aa45ffb77
Sergei Golubchik
MDEV-30555 The server does not detect changes in NULL-ability of system table columns

Introduce CAN_BE_NULL annotation into Table_check_intact checks.
By default columns are considered NOT NULL, nullable
columns must be explicitly marked with CAN_BE_NULL.

All TABLE_FIELD_TYPE arrays are fixed as above.

Assisted-By: Claude:claude-4.6-sonnet
e77103b0ffab...
e77103b0ffaba05d3be89433642303bdf58c53f1
Sergei Golubchik
cleanup: get_item_copy<>(item)

make get_item_copy<T>(item) return T* not a generic Item*
helps to avoid casts when a copy needs to be fixed before returning.
e482a6f29f8d...
e482a6f29f8d17b487cb4ea516fd87bfb0d59fa1
Sergei Golubchik
MDEV-24598 Duplicate CHECK constraint names are allowed

Field CHECK constraints always have the name of the corresponding field.
Table-level CHECK constraint can be arbitrary named and can have
the name of the field with a CHECK constraint.

Detect this and throw ER_DUP_CONSTRAINT_NAME.

Special treatment for auto-generated constraint names
(CONSTRAINT_1, etc) they can match a field name too - this is not
an error, just auto-generate a different name.

Assisted-By: Claude:claude-4.6-sonnet
d386340a43c4...
d386340a43c4bc1ca400a37bd0225aabe01328ff
Sergei Golubchik
MDEV-40413 ALTER TABLE ... CONVERT ... PARTITION doesn't encode partition names

CONVERT ... PARTITION passed user-specified partition names to
create_partition_name() with translate=FALSE, so names needing
filename escaping (e.g. `foo-bar`) didn't match the on-disk file.
Pass TRUE to encode them.
bbea98dba1a7...
bbea98dba1a7ed1302fe17ddf5200ef93a45fe3c
Sergei Golubchik
MDEV-39318 some MTR tests fail with --ssl

* many test expected error 2013 (CR_SERVER_LOST)
  they should also expect 2026 (CR_SSL_CONNECTION_ERROR)
* some test --connect and expect a specific pre-auth error,
  they should use NOSSL option
* some tests start with invalid certificate - they work because
  mariadb-test doesn't connect with ssl by default. With --ssl
  it does and simply cannot connect. These tests use include/not_ssl.inc
* ssl_cipher restarts the server internally with invalid cipher.
  it should reconnect the default connection without SSL, otherwise
  mariadb-test will fail to connect after server is restarted
* tests that print ssl status without forcing it first - shouldn't,
  they don't know whether ssl is enabled or not.
* some perfschema tests are socket-specific and use include/not_ssl.inc
* perfschema status tables had too small column for ssl_ciphers value.
  Fixed as in f34afeaf6b83 (MDEV-39318)
b98dc07d9f12...
b98dc07d9f129bd469dadeb918ea4043f47dbbd3
Sergei Golubchik
MDEV-39821 heap-use-after-free in heap_rnext with tree indexes

heap_update() forgot to update key_changed
af3f6e434c76...
af3f6e434c761401ca4e8fe8661b594e494a1664
Sergei Golubchik
MDEV-25813 ASAN errors in err_conv / field_unpack upon multi-UPDATE causing ER_DUP_ENTRY

InnoDB always frees allocated in record[0] blobs even
when reading into record[1].
Let's read into record[0] for consistency.
adfd2fb9a7d6...
adfd2fb9a7d666ffe382f9ea7006b805bc6d0037
Sergei Golubchik
MDEV-40341 store read-only sysvars in a read-only root

Store all READ_ONLY sysvar values in the read_only_root

Even though READ_ONLY sysvars are protected, for string variables
it usually means that the pointer cannot be changed. The value it
points to - the string itself - still can be. Let's store all
values of string READ_ONLY sysvars in the read_only_root.

sysvars that point directly into argv are copied to read_only_root.
sysvars that have their values calculated and allocated now
must be explicitly marked with PREALLOCATED to let it know they
have to be free()-d.

Assisted-By: Claude:claude-4.8-opus
a6100c8462df...
a6100c8462df6cfcffab49cd2e9b2fa84889bff9
Sergei Golubchik
MDEV-40341 store read-only sysvars in a read-only segment

Protect all READ_ONLY sysvars from run-time changes.

Put them into a separate ELF section with a special attribute
and mprotect() this section after the server is fully initialized.

Verify that they're all protected in the sys_var constructor.

One exception: opt_noacl (--skip-grant-tables) can be changed
from 1 to 0 on FLUSH PRIVILEGES. Let's briefly drop the
protection for this 1->0 change. It can be needed only once
in a server lifetime and only if it was started with --skip-grant-tables

On shutdown the protection is removed, making variables writable
again because shutdown resets some of them during the cleanup

Assisted-By: Claude:claude-4.8-opus
a281f1ffcaf3...
a281f1ffcaf3c99d76afe0b5e9529cd254f3b97b
Sergei Golubchik
MDEV-40337 store user vars in a dedicated memroot

user_var_entry objects and their names have a connection lifetime,
they exist until the connection ends (or is reset), and then they're
all deleted at once. This is exactly the use case for MEM_ROOT,
let's store them there.

Additionally, let's set MY_ROOT_USE_MPROTECT flag to keep this memroot
off the general heap where user_var_entry values are stored
and where heap buffer overflows can happen.

The latter makes memory allocations for the MEM_ROOT about 10x more
expensive, so let's always start with an empty memroot (= zero overhead
if no user variables are used) and on THD cleanup let's retain one
memroot block (= zero overhead if the next connection takes THD from the
cache and uses user variables up to one block size).

Assisted-By: Claude:claude-4.8-opus
a1ceb2a7598b...
a1ceb2a7598ba1fd0eec5e27317a002f1092ac6b
Sergei Golubchik
MDEV-26910 mysqld_multi starts same instance multiple times with the risk to crash database

a group name may be present in a file more than once.
use hash to deduplicate.
a0d9bbbe870a...
a0d9bbbe870a3a6e861293e00ddde11aaabdefab
Sergei Golubchik
MDEV-36147 MariaDB cannot open page-compressed InnoDB tables at startup if innodb_compression_algorithm other than zlib is specified

When innodb_compression_algorithm is set to a non-zlib algorithm (e.g.
lz4) and the provider plugin is loaded from mysql.plugin rather than
command line, InnoDB failed to start because it checked for the provider
at plugin initialization time, before plugin_load() reads mysql.plugin.

Fix:
* InnoDB returns HA_ERR_RETRY_INIT when the compression provider is
  missing.
* In sql_plugin.cc, the retry loop is changed to not reap until
  mysql.plugin has been loaded

Assisted-By: Claude:claude-4.6-sonnet
9b7f360ec133...
9b7f360ec1331f98788d84da4101e352eb954c1c
Sergei Golubchik
MDEV-28743 Roles without grants are handled wrong

In propagate_role_grants_action() (called by grant_reload() on startup
and FLUSH PRIVILEGES), role privilege merging uses a counter-based
bottom-up ordering: each role's counter tracks how many of its granted
sub-roles still need to be processed, and merge_role_privileges() merges
a role only once its counter reaches zero.

The bug: when an intermediate role such as org_role_1 (which inherits
only from a USAGE-only app_role_1) was merged with no privilege changes,
merge_role_privileges() returned 1 as an optimisation to stop upward
traversal.  This prevented the traversal from ever reaching user_role_1
to decrement its counter.  A second leaf traversal (from app_role_2)
could decrement user_role_1's counter only once, leaving it at 1
instead of 0, so user_role_1 was never merged and had no effective
privileges.

The "stop if nothing changed" optimisation is valid for incremental
propagate_role_grants() calls (after a single GRANT/REVOKE), where
every ancestor was already correctly merged.  It is not valid for the
full-reload case, where the counters must be decremented by every leaf
traversal to guarantee correct bottom-up ordering.

Fix: add an initial_load flag to PRIVS_TO_MERGE.  When set (only in
propagate_role_grants_action), the early-stop optimisation is disabled
so traversals always visit all ancestors.

Assisted-By: Claude:claude-4.6-sonnet
92141df4ab20...
92141df4ab20a88629305eb453b6ee8ced366f2a
Sergei Golubchik
MDEV-40425 handlersocket crashes on read with huge number of fields

* fix handlersocket to unlink it's THD, this apparently was broken
  for years
* add a check for fldnum
* add a first ever handlersocket test
897dbf9f1d5f...
897dbf9f1d5f12be317bf5efa817dc64f464e716
Sergei Golubchik
MDEV-26910 mysqld_multi starts same instance multiple times with the risk to crash database

a group name may be present in a file more than once.
use hash to deduplicate.
860cb3618672...
860cb3618672c0f21623e22dde5f07ee4387f417
Sergei Golubchik
apply reasonable limits to initid.max_length as provided by UDF

UDF can set max_length incorrectly, e.g. to 2138 for an integer.
let's cap UDF-provided value by a type-specific limit.
836b26f9b50e...
836b26f9b50ec6a393850d5cf45f7d8f04b9067c
Sergei Golubchik
MDEV-36147 MariaDB cannot open page-compressed InnoDB tables at startup if innodb_compression_algorithm other than zlib is specified

When innodb_compression_algorithm is set to a non-zlib algorithm (e.g.
lz4) and the provider plugin is loaded from mysql.plugin rather than
command line, InnoDB failed to start because it checked for the provider
at plugin initialization time, before plugin_load() reads mysql.plugin.

Fix:
* InnoDB returns HA_ERR_RETRY_INIT when the compression provider is
  missing.
* In sql_plugin.cc, the retry loop is changed to not reap until
  mysql.plugin has been loaded

Assisted-By: Claude:claude-4.6-sonnet
7224a794a90f...
7224a794a90f5ba24916443a6f41b875354a11b7
Sergei Golubchik
cleanup: get_item_copy<>(item)

make get_item_copy<T>(item) return T* not a generic Item*
helps to avoid casts when a copy needs to be fixed before returning.
71e2dc397a90...
71e2dc397a9064ddec51d4bf05d19fc9151d2b65
Sergei Golubchik
apply reasonable limits to initid.max_length as provided by UDF

UDF can set max_length incorrectly, e.g. to 2138 for an integer.
let's cap UDF-provided value by a type-specific limit.
68596b84535e...
68596b84535e850c14b7c19e5b81e4e981b5556b
Sergei Golubchik
MDEV-25813 ASAN errors in err_conv / field_unpack upon multi-UPDATE causing ER_DUP_ENTRY

InnoDB always frees allocated in record[0] blobs even
when reading into record[1].
Let's read into record[0] for consistency.
61ea28876b13...
61ea28876b13ff14868e2e71d7f3789be619aeb5
Sergei Golubchik
Revert "MDEV-17677: Keywords followed by .number parsed as identifiers"

This reverts commit 895b28d6721eadfad0d47723fcc949eae75cf8cf.
5e6048b9e7e5...
5e6048b9e7e548b715d3238dc5a9a345a8d5bee3
Sergei Golubchik
MDEV-40413 ALTER TABLE ... CONVERT ... PARTITION doesn't encode partition names

CONVERT ... PARTITION passed user-specified partition names to
create_partition_name() with translate=FALSE, so names needing
filename escaping (e.g. `foo-bar`) didn't match the on-disk file.
Pass TRUE to encode them.
59577f0bce96...
59577f0bce96a57ef8ea6cb169fb7345aa0cd593
Sergei Golubchik
.gitignore plugin/auth_pam/testing/mariadb_mtr
56329b84ac40...
56329b84ac40984dbfe3d2f77bdcdc578415cd24
Sergei Golubchik
MDEV-23486 RBR can bypass secure_timestamp=YES

fix TIMESTAMP DEFAULT NOW() and ON UPDATE NOW()

Caveat: rbr cannot work without an index - if the slave overwrites
timestamp columns, before-image won't match in full, this is expected.
55fff9b32592...
55fff9b32592c0c6c8e5bef14f19e14ad0bd47ba
Sergei Golubchik
MDEV-39363 Logical Bug in `NOT ( ... XOR ... )` Evaluation with Implicit Type Conversion

for 0.1f val_int() is 0, val_bool() is 1.
544c084c423a...
544c084c423a49797c7fb6c4ea2eee4ea8f37808
Sergei Golubchik
MDEV-40411 SFORMAT ignores max_allowed_packet

do our own allocator that implements std::allocator interface
but uses our memory accounting (my_malloc) and limits max allocation
(e.g. to max_allowed_packet).

use it for fmt::vformat_to.
later can be used for various std:: stuff too.
4960ad55abd4...
4960ad55abd42a3bdeaa40502839aa85589d9111
Sergei Golubchik
MDEV-37951 SHOW TABLES allows users with only GRANT OPTION privilege to read all table names in the database "mysql"

WITH GRANT OPTION is not a privilege in the standard sense,
so whenever INFORMATION_SCHEMA visibility dictates "any privilege"
this does not include WITH GRANT OPTION, even though GRANT_ACL
is a privilege in MariaDB.

Assisted-By: Claude:claude-4.6-sonnet
3bb52395a45f...
3bb52395a45f9c5215fe0bee6d7989efb4fd33f7
Sergei Golubchik
fix sporadic galera test failures

* query @@datadir before audit is enabled, not directly before reading
  the log. just in case cat gets the log before SELECT is flushed.
* wait for a table to be dropped
37baf90fba56...
37baf90fba56ce370bccd306cac6cf55d82cb7b3
Sergei Golubchik
fix sporadic galera test failures

* query @@datadir before audit is enabled, not directly before reading
  the log. just in case cat gets the log before SELECT is flushed.
* wait for a table to be dropped
378ac2179d80...
378ac2179d801d65e48d54fbc94caafe05aba43f
Sergei Golubchik
MDEV-24598 Duplicate CHECK constraint names are allowed

Field CHECK constraints always have the name of the corresponding field.
Table-level CHECK constraint can be arbitrary named and can have
the name of the field with a CHECK constraint.

Detect this and throw ER_DUP_CONSTRAINT_NAME.

Special treatment for auto-generated constraint names
(CONSTRAINT_1, etc) they can match a field name too - this is not
an error, just auto-generate a different name.

Assisted-By: Claude:claude-4.6-sonnet
35c5c921b18f...
35c5c921b18fd41f41ea65623c9f4fd2c2934296
Sergei Golubchik
UBSAN: sql/table.h:237:16: runtime error: load of value 4, which is not a valid value for type 'bool'

the warning was about uninitialized `bool in_field_list`
let's initialize the whole ORDER when it's allocated.
30257b861d9f...
30257b861d9ff6f9707671d96a936d355f188f6f
Sergei Golubchik
UBSAN: sql/table.h:237:16: runtime error: load of value 4, which is not a valid value for type 'bool'

the warning was about uninitialized `bool in_field_list`
let's initialize the whole ORDER when it's allocated.
2fb460d74ec1...
2fb460d74ec15d545bd11edf06c446d4c4d63871
PranavKTiwari
MDEV-40167: GTT created with the InnoDB incorrectly accept FULLTEXT/VECTOR indexes
Problem:
GLOBAL TEMPORARY tables were not subject to the same option/index restrictions as session TEMPORARY tables. Several InnoDB and server-layer checks tested only tmp_table(), so GLOBAL TEMPORARY tables could bypass validation for VECTOR/FULLTEXT indexes, DATA DIRECTORY, KEY_BLOCK_SIZE, and ROW_FORMAT=COMPRESSED.

Cause:
global_tmp_table() was added as a separate predicate from tmp_table(), but not all temp-table checks were updated to test both, so GLOBAL TEMPORARY tables fell through to "permanent table" logic in several places.

Fix:
Added global_tmp_table() alongside tmp_table() at each affected check:

Reject VECTOR and FULLTEXT indexes on GLOBAL TEMPORARY tables.
Reject/warn on DATA DIRECTORY, KEY_BLOCK_SIZE, and ROW_FORMAT=COMPRESSED for GLOBAL TEMPORARY tables, with accurate wording in the DATA DIRECTORY warning.
Fixed zip_allowed and related ut_ad assertions to exclude GLOBAL TEMPORARY tables.
Fixed m_use_file_per_table in set_tablespace_type() to exclude GLOBAL TEMPORARY tables (also fixes m_use_data_dir).
GLOBAL TEMPORARY tables now validate the same as session TEMPORARY tables across these options.
2cf1408ac25b...
2cf1408ac25b840078ab952b06769af558ed75d9
Sergei Golubchik
MDEV-37951 SHOW TABLES allows users with only GRANT OPTION privilege to read all table names in the database "mysql"

WITH GRANT OPTION is not a privilege in the standard sense,
so whenever INFORMATION_SCHEMA visibility dictates "any privilege"
this does not include WITH GRANT OPTION, even though GRANT_ACL
is a privilege in MariaDB.

Assisted-By: Claude:claude-4.6-sonnet
171763b5ddf0...
171763b5ddf0dea731e9d134991e474fd08b652b
Sergei Golubchik
MDEV-40425 handlersocket crashes on read with huge number of fields

* fix handlersocket to unlink it's THD, this apparently was broken
  for years
* add a check for fldnum
* add a first ever handlersocket test
0ed6c1598444...
0ed6c1598444554a5cc6493cdac98104e2ce1617
Sergei Golubchik
MDEV-39841 handlersocket plugin default secret is empty

if handlersocket_plain_secret is not specified, generate a random one.
one can still set an empty secret in my.cnf if needed.
0921c64270e0...
0921c64270e081722e878e48c6491f77c1d3d955
Sergei Golubchik
MDEV-31024 Server crash / ASAN use-after-poison in Binary_string::free_buffer / Item_func_sformat::~Item_func_sformat

re-allocate Item_func_sformat::val_arg in shallow_copy()
to keep it in the same memroot as the item.
06550a7557f8...
06550a7557f84e60cf5b0769419af4dbfa9efad2
Sergei Golubchik
MDEV-23486 RBR can bypass secure_timestamp=YES

Add tests for system versioning.
INSERT is fixed, but UPDATE is still broken.
014fdfeb73d0...
014fdfeb73d005135c08ef48edb5dad1de7e106a
Sergei Golubchik
MDEV-39654 schema-qualified unquoted table name starting with digit fails to parse

add tests
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