Bitrix postgresql

Skill bxmaximum/bitrix-framework-skills/skills/bitrix-postgresql

Covers PostgreSQL support in Bitrix — PgsqlConnection, migration from MySQL, compatible code, module support matrix. Applied when configuring or migrating to PostgreSQL Enterprise editions. Key terms — PostgreSQL, PgsqlConnection, migration, compatible-code.From its SKILL.md

Install

npx -y skills add bxmaximum/bitrix-framework-skills --skill bitrix-postgresql

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SKILL.md

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PostgreSQL in Bitrix

Baseline: main 23.0+. Supported in Enterprise for PostgreSQL licenses (B24 and CMS). Connection class: \Bitrix\Main\DB\PgsqlConnection.

Configuration

'connections' => [
    'value' => [
        'default' => [
            'className' => \Bitrix\Main\DB\PgsqlConnection::class,
            'host' => 'localhost',
            'database' => 'bx',
            'login' => 'bx',
            'password' => '***',
            'options' => \Bitrix\Main\DB\Connection::DEFERRED,
        ],
    ],
    'readonly' => true,
],

Before Migration

Obtain Enterprise for PostgreSQL license (test key available for 6 months).
Update Performance Monitor module to 24.0.0+.
Project must use UTF-8 encoding.
Close site to visitors during migration.
Test on staging first — return to MySQL after production PostgreSQL launch requires manual work.

Module Compatibility

Not all kernel and marketplace modules support PostgreSQL. Incompatible modules are disabled during conversion wizard.

Check custom code:

MySQL-specific SQL (LIMIT syntax differences handled by SqlHelper, but raw SQL may break).
MySQL install scripts under install/mysql/ or install/db/mysql/ need matching PostgreSQL scripts under install/pgsql/ or install/db/pgsql/.

Find modules missing pgsql install:

for mysql in bitrix/modules/*/install/mysql/install.sql bitrix/modules/*/install/db/mysql/install.sql; do
  pgsql=$(echo $mysql | sed 's#/mysql/#/pgsql/#')
  test -e $pgsql || echo "missing: $pgsql"
done

Check kernel module install folders: each supporting module should have matching install/pgsql/ or install/db/pgsql/ scripts. Inspect bitrix/modules/<module>/install/ in the project.

Migration Methods

Wizard — Admin conversion tool (lists disabled modules on step 1).
CLI — manual server-side migration via Performance Monitor module tools.

Writing Compatible Code

Use ORM and SqlHelper — avoid MySQL-specific functions in raw SQL.
Use SqlExpression placeholders instead of string concatenation.
Test DDL in both MySQL (install/mysql/ or install/db/mysql/) and PostgreSQL (install/pgsql/ or install/db/pgsql/) if the module supports both.
Avoid ENGINE=InnoDB, backticks-specific syntax, UNSIGNED.

Checklist

License is Enterprise for PostgreSQL.
All custom modules checked for pgsql install scripts.
Raw SQL audited for MySQL-specific syntax.
Migration tested on copy before production.
Marketplace modules verified with vendors.

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.