Undefined function: 7 ERROR: function to_tsvector(unknown, tsvector) does not exist

[DumboJetEngine]

Laravel Version

11.44.0

PHP Version

8.3.15

Database Driver & Version

PostgreSQL 15.10 (Debian 15.10-1.pgdg120+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit

Description

I have added FTS functionality in my application like so:

Schema::table('table', function (Blueprint $table) {
    //$table->fullText(['title'], 'messages_title_fulltext')->language('greek'); // <--- With this I had issues with ignoring greek diacritics...
    DB::statement("ALTER TABLE table ADD COLUMN title_fts tsvector GENERATED ALWAYS AS (to_tsvector('greek', coalesce(title,''))) STORED;");
});

Searching:

$builder = Table::orderByDesc('created_at')->orderByDesc('id');
$builder->whereFullText('title_fts', $title);

When executing the whereFullText(), I get an error of:

Undefined function: 7 ERROR: function to_tsvector(unknown, tsvector) does not exist

Doing something like this, solves the problem, but opens me up to SQL injection attacks:

$builder->whereRaw("title_fts @@ to_tsquery('greek', '$title:*')");

And I have also tried this, which didn't work:

$builder->whereRaw("title_fts @@ to_tsquery('greek', '?:*')", [$title]);

PDOException: SQLSTATE[08P01]: <>: 7 ERROR: bind message supplies 1 parameters, but prepared statement "pdo_stmt_00000003" requires 0

Am I doing something wrong, or this is a bug?

UPDATE:
I have found a workaround with this code, but it is possible to avoid using whereRaw() altogether, it would be nice to know:

$builder->whereRaw("title_fts @@ to_tsquery('greek', ?)", ["$title:*"])

Steps To Reproduce

Create a table with a title column and add FTS to it, using the partial migration code given above.
Try to search with the provided code.