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[Messenger] Firebird Database - incompatibility with expected lowercase columns #61232

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@DSsatwareAG DSsatwareAG commented Jul 24, 2025

Firebird Database - incompatibility with expected lowercase columns

Q A
Branch? 6.4
Bug fix? yes
New feature? no
Deprecations? no
Issues Fix #61171
License MIT

Fix ensures, for Firebird databases, the column names are consistently converted to lowercase before being processed by Doctrine Messenger. This resolves the incompatibility by providing Messenger with the expected lowercase column names, regardless of how Firebird returns them.

Because the FirebirdPlatform is not part of the doctrine/dbal package, I was unable to use instanceof for platform detection. Instead, I implemented a string comparison to check for Firebird as the database platform.

Firebird Databse -  incompatibility with expected lowercase columns
@carsonbot
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Hey!

I see that this is your first PR. That is great! Welcome!

Symfony has a contribution guide which I suggest you to read.

In short:

  • Always add tests
  • Keep backward compatibility (see https://symfony.com/bc).
  • Bug fixes must be submitted against the lowest maintained branch where they apply (see https://symfony.com/releases)
  • Features and deprecations must be submitted against the 7.4 branch.

Review the GitHub status checks of your pull request and try to solve the reported issues. If some tests are failing, try to see if they are failing because of this change.

When two Symfony core team members approve this change, it will be merged and you will become an official Symfony contributor!
If this PR is merged in a lower version branch, it will be merged up to all maintained branches within a few days.

I am going to sit back now and wait for the reviews.

Cheers!

Carsonbot

@carsonbot
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Hey!

Thanks for your PR. You are targeting branch "7.4" but it seems your PR description refers to branch "6.4".
Could you update the PR description or change target branch? This helps core maintainers a lot.

Cheers!

Carsonbot

@DSsatwareAG DSsatwareAG changed the base branch from 7.4 to 6.4 July 24, 2025 18:02
@DSsatwareAG DSsatwareAG changed the title Update Connection.php Firebird Databse - incompatibility with expected lowercase columns Jul 24, 2025
@OskarStark OskarStark changed the title Firebird Databse - incompatibility with expected lowercase columns Firebird Database - incompatibility with expected lowercase columns Jul 24, 2025
@carsonbot carsonbot changed the title Firebird Database - incompatibility with expected lowercase columns [Messenger] Firebird Database - incompatibility with expected lowercase columns Jul 29, 2025
@@ -404,7 +404,9 @@ private function createQueryBuilder(string $alias = 'm'): QueryBuilder

$alias .= '.';

if (!$this->driverConnection->getDatabasePlatform() instanceof OraclePlatform) {
// FirebirdPlatform ist not part of Doctrine/Dbal Package
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which package is it part of then?
why can't we check for the FQCN?

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It's part of https://github.com/satwareAG/doctrine-firebird-driver.
We can check for \Satag\DoctrineFirebirdDriver\Platforms\FirebirdPlatform

@derrabus
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Are you using the connection for the messenger exclusively? If so, you could use DBAL's portability middleware to control the casing of result columns.

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Doctrine Messenger: Firebird database returns column names in uppercase – incompatibility with expected lowercase columns
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