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Alexander Barkov f5aae71661 MDEV-31606 Refactor check_db_name() to get a const argument
Problem:
Under terms of MDEV-27490, we'll update Unicode version used
to compare identifiers to 14.0.0. Unlike in the old Unicode version,
in the new version a string can grow during lower-case. We cannot
perform check_db_name() inplace any more.

Change summary:

- Allocate memory to store lower-cased identifiers in memory root

- Removing check_db_name() performing both in-place lower-casing and validation
  at the same time. Splitting it into two separate stages:
  * creating a memory-root lower-cased copy of an identifier
    (using new MEM_ROOT functions and Query_arena wrapper methods)
  * performing validation on a constant string
    (using Lex_ident_fs methods)

Implementation details:

- Adding a mysys helper function to allocate lower-cased strings on MEM_ROOT:

    lex_string_casedn_root()

  and a Query_arena wrappers for it:

    make_ident_casedn()
    make_ident_opt_casedn()

- Adding a Query_arena method to perform both MEM_ROOT lower-casing and
  database name validation at the same time:

    to_ident_db_internal_with_error()

  This method is very close to the old (pre-11.3) check_db_name(),
  but performs lower-casing to a newly allocated MEM_ROOT
  memory (instead of performing lower-casing the original string in-place).

- Adding a Table_ident method which additionally handles derived table names:

    to_ident_db_internal_with_error()

- Removing the old check_db_name()
2023-09-13 11:04:27 +04:00
.github Merge 10.11 into 11.0 2023-06-08 13:49:48 +03:00
BUILD Merge 10.11 into 11.0 2023-06-28 09:19:19 +03:00
client MDEV-30164 System variable for default collations 2023-07-17 14:56:17 +04:00
cmake MDEV-30610 Update RocksDB to v8.1.1 2023-08-17 14:04:59 +01:00
dbug Merge 10.6 into 10.8 2023-02-10 13:43:53 +02:00
debian MDEV-31231: Remove JavaWrappers.jar from mariadb-test-data and create new mariadb-plugin-connect-jdbc package 2023-08-30 15:25:13 +10:00
Docs Fixed some typos in optimizer_costs.txt 2023-03-28 18:41:09 +11:00
extra MDEV-31505 Deprecate mariabackup --innobackupex mode 2023-09-04 05:53:49 +04:00
include MDEV-31606 Refactor check_db_name() to get a const argument 2023-09-13 11:04:27 +04:00
libmariadb@5af90f00ff Merge 10.5 into 10.6 2023-06-26 17:11:38 +03:00
libmysqld MDEV-31496: Make optimizer handle UCASE(varchar_col)=... 2023-09-12 17:14:43 +03:00
libservices MDEV-12933 sort out the compression library chaos 2021-10-27 15:55:14 +02:00
man Merge 11.0 into 11.1 2023-07-26 15:13:43 +03:00
mysql-test MDEV-31496: Make optimizer handle UCASE(varchar_col)=... 2023-09-12 17:14:43 +03:00
mysys MDEV-31606 Refactor check_db_name() to get a const argument 2023-09-13 11:04:27 +04:00
mysys_ssl Merge 10.4 into 10.5 2023-02-10 12:02:11 +02:00
plugin MDEV-31992 Automatic conversion from LEX_STRING to LEX_CSTRING 2023-08-23 15:30:06 +04:00
randgen/conf Group commit for maria engine. 2010-02-12 15:12:28 +02:00
scripts MDEV-12459 post-review fixes 2023-08-11 19:36:22 +02:00
sql MDEV-31606 Refactor check_db_name() to get a const argument 2023-09-13 11:04:27 +04:00
sql-bench MDEV-24854: Change innodb_flush_method=O_DIRECT by default 2021-02-20 11:58:58 +02:00
sql-common more C API methods in the service_sql 2023-06-05 20:16:11 +02:00
storage MDEV-31231: Remove JavaWrappers.jar from mariadb-test-data and create new mariadb-plugin-connect-jdbc package 2023-08-30 15:25:13 +10:00
strings MDEV-31496: Make optimizer handle UCASE(varchar_col)=... 2023-09-12 17:14:43 +03:00
support-files Merge 11.0 into 11.1 2023-06-08 14:09:21 +03:00
tests MDEV-16329 [5/5] ALTER ONLINE TABLE 2023-08-15 10:16:11 +02:00
tpool Merge 10.10 into 10.11 2023-04-14 13:08:28 +03:00
unittest Merge 10.9 into 10.10 2023-04-14 12:24:14 +03:00
vio Fix trivial spelling errors 2023-03-24 12:54:05 +11:00
win Merge 10.6 into 10.8 2023-02-10 13:43:53 +02:00
wsrep-lib@e238c0d240 MDEV-29293 MariaDB stuck on starting commit state 2023-05-22 00:42:05 +02:00
zlib Merge branch 'merge-zlib' into 10.3 2023-04-20 17:06:19 +02:00
.clang-format Merge 10.4 into 10.5 2019-12-27 21:17:16 +02:00
.gitattributes Merge branch '10.5' into 10.6 2022-02-03 17:01:31 +01:00
.gitignore MDEV-30610 Update RocksDB to v8.1.1 2023-08-17 14:04:59 +01:00
.gitlab-ci.yml Implement mysql_upgrade upgrade testing in CI 2023-07-05 10:42:32 +01:00
.gitmodules Merge remote-tracking branch '10.4' into 10.5 2023-03-31 21:32:41 +02:00
appveyor.yml Merge 10.5 into 10.6 2022-07-27 17:52:37 +03:00
BUILD-CMAKE Minor spelling fixes in code comments, docs and output 2018-01-12 16:49:02 +02:00
CMakeLists.txt Merge 10.11 into 11.0 2023-02-28 13:14:08 +02:00
CODING_STANDARDS.md Add preprocessor whitespace to CODING_STANDARDS.md 2023-07-12 09:33:50 +10:00
config.h.cmake Merge 10.6 into 10.7 2022-10-13 10:05:29 +03:00
configure.cmake Merge 10.6 into 10.7 2022-10-13 10:05:29 +03:00
CONTRIBUTING.md Add CODING_STANDARDS.md file 2023-02-03 15:47:17 +11:00
COPYING Update FSF Address 2019-05-11 21:29:06 +03:00
CREDITS CREDITS: re-instate Tencent Cloud 2023-01-25 16:44:26 +11:00
INSTALL-SOURCE Update AskMonty and Atlassian references to MariaDB 2016-03-08 15:24:01 +02:00
INSTALL-WIN-SOURCE Update AskMonty and Atlassian references to MariaDB 2016-03-08 15:24:01 +02:00
KNOWN_BUGS.txt Changed some MySQL names in messages to MariaDB 2018-12-09 20:49:05 +02:00
README.md Update README.md 2023-06-05 08:28:06 +10:00
SECURITY.md Create SECURITY.md 2023-06-05 08:28:06 +10:00
THIRDPARTY MDEV-27009: Add UCA-14.0.0 collations - License 2023-04-17 17:06:18 +10:00
VERSION 11.3 branch 2023-08-16 11:45:24 +02:00

Code status:

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MariaDB: The open source relational database

MariaDB was designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.

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https://mariadb.com/kb/en/new-and-old-releases/

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License information can be found in the COPYING file. Third party license information can be found in the THIRDPARTY file.


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