README

SPONSOR: Amadeco

Extend database version compatibility for Magento 2 with experimental support for MariaDB 11.X/12.X and enhanced version detection.

What it does

Three fixes for running Magento 2.4.x on a MariaDB version ahead of its certified matrix (all rooted in the same uncertified MariaDB 12.x engine):

1. Version detection — adds MariaDB 11.4 / 12.0–12.4 patterns to SqlVersionProvider::$supportedVersionPatterns, so setup/version gating stops rejecting the engine with "Current version of RDBMS is not supported".
2. Default charset — an after-plugin on the declarative-schema Table factory returns utf8mb4 / utf8mb4_general_ci for MariaDB >= 10.4 (the hardcoded static map only knows 10.4/10.6/11.4/mysql8.29). ⚠ Activate only once live tables are already utf8mb4 — see NOTES.md.
3. Reserved word to_date — TO_DATE is a reserved function name on MariaDB 12.x, so a bare to_date column identifier is a 1064 syntax error. Two around plugins re-add the from_date/to_date validity-date predicates back-tick quoted in SalesRule\...\DateApplier::applyDate() (cart/checkout, never FPC-cached → hard 500) and Smile\ElasticsuiteCatalogOptimizer\...\Collection::addIsActiveFilter() (FPC-masked, 500 on cache miss). Scoped to MariaDB 12+ via Model\ReservedWordEngine; a true pass-through on MySQL / MariaDB < 12. (Merged in from the former Amadeco_MariaDbReservedWordFix.)

Dependencies

magento/framework is the only hard requirement. The SalesRule and ElasticSuite optimizer integrations are soft: declared via <sequence> in module.xml (load-order only — tolerates absence) and listed under suggest in composer.json. Each date-filter plugin activates only when its target module is installed; on a build without it, the plugin is skipped at setup:di:compile and inert at runtime. No hard composer dependency is created on either module.

Installation

Composer Installation

Execute the following commands in your Magento root directory:

composer require amadeco/module-db-override
bin/magento module:enable Amadeco_DbOverride
bin/magento setup:upgrade
bin/magento setup:di:compile
bin/magento setup:static-content:deploy

Manual Installation

1. Create directory app/code/Amadeco/DbOverride in your Magento installation
2. Clone or download this repository into that directory
3. Enable the module and update the database:

bin/magento module:enable Amadeco_DbOverride
bin/magento setup:upgrade
bin/magento setup:di:compile
bin/magento setup:static-content:deploy

Compatibility

• Magento 2.4.x
• PHP 8.3

🛠 Supported Database Versions

• MySQL 5.7
• MySQL 8.0
• MariaDB 10.2 - 10.6 - 10.11
• MariaDB 11.4
• MariaDB 12.0 - 12.4

Contributing

Contributions are welcome! Please read our Contributing Guidelines.

Support

For issues or feature requests, please create an issue on our GitHub repository.

License

This module is licensed under the Open Software License ("OSL") v3.0. See the LICENSE.txt file for details.