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999bf3d097
If a table is joined multiple times, those tables are aliased other than
the first one.
It happens easily on self referential associations, and in that case
currently there is no way to work custom attribute (type casting) and
attribute alias resolution for aliased tables in `where` conditions.
To address the issue, it will allow `where` references association names
as table aliases. If association names are referenced in `where`, those
names are used for joined table alias names.
```ruby
class Comment < ActiveRecord::Base
enum label: [:default, :child]
has_many :children, class_name: "Comment", foreign_key: :parent_id
end
# ... FROM comments LEFT OUTER JOIN comments children ON ... WHERE children.label = 1
Comment.includes(:children).where("children.label": "child")
```
Fixes #39727.
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| mysql2_specific_schema.rb | ||
| oracle_specific_schema.rb | ||
| postgresql_specific_schema.rb | ||
| schema.rb | ||
| sqlite_specific_schema.rb | ||