DBAL-1137: Infinite recursion on non-unique table/join alias in QueryBuilder

[doctrinebot]

Jira issue originally created by user @deeky666:

The QueryBuilder runs into an infinite recursion when using duplicate table aliases for table and/or join clauses:

$qb->select('a.id, b.id')
    ->from('table_a', 'a')
    ->join('a', 'table*b', 'b', 'a.fk*b = b.id')
    ->join('a', 'table*b', 'b', 'a.fk*b = b.id')
    ->join('b', 'table*a', 'a', 'a.fk*b = b.id');

Non-unique table aliases should be detected and an appropriate exception should be thrown instead.

[doctrinebot]

• is duplicated by DBAL-1138: [GH-792] getSQLForJoins - infinite recursion if join alias is not unique
• is referenced by DBAL-1136: [GH-791] Update QueryBuilderTest.php

[doctrinebot]

Issue was closed with resolution "Fixed"

[github-actions]

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