When `acts-as-taggable-on`'s `.tagged_with()` is used with `any: true`,
the gem will use `SELECT *` regardless of any previous (or following) requests
of selecting a limited amount of columns.
Given that the `articles` table has [73 columns](https://dev.to/admin/blazer/queries/314-number-of-columns-in-all-tables)
that will amount to wasted RAM memory for columns we don't need.
By "unscoping" any previous `select()` we can optimize used memory.
Before:
```ruby
[24] pry(main)> Article.tagged_with([:ruby], any: true).select(:id, :name).to_sql
=> "SELECT \"articles\".*, \"articles\".\"id\", \"name\" FROM \"articles\" WHERE EXISTS (SELECT * FROM \"taggings\" WHERE \"taggings\".\"taggable_id\" = \"articles\".\"id\" AND \"taggings\".\"taggable_type\" = 'Article' AND \"taggings\".\"tag_id\" IN (SELECT \"tags\".\"id\" FROM \"tags\" WHERE (\"tags\".\"name\" LIKE 'ruby' ESCAPE '!')))"
```
Note, how the SQL query is `articles.*, articles.column_a`
After:
[25] pry(main)> Article.tagged_with([:ruby], any: true).unscope(:select).select(:id, :name).to_sql
=> "SELECT \"articles\".\"id\", \"name\" FROM \"articles\" WHERE EXISTS (SELECT * FROM \"taggings\" WHERE \"taggings\".\"taggable_id\" = \"articles\".\"id\" AND \"taggings\".\"taggable_type\" = 'Article' AND \"taggings\".\"tag_id\" IN (SELECT \"tags\".\"id\" FROM \"tags\" WHERE (\"tags\".\"name\" LIKE 'ruby' ESCAPE '!')))"
```
`articles.*` is gone :-)
- https://github.com/mbleigh/acts-as-taggable-on/issues/936
- 47da5036de/lib/acts_as_taggable_on/taggable/tagged_with_query/any_tags_query.rb (L2-L8)
* Rename positive_reactions_count to public_reactions_count
* Add positive reactions count back in so we can remove it
* Use public_category method for reactions
* Add positive_reactions_count in case any old caches rely on it
* Add positive_rxn_count to account for API endpoints
* Remove unused method
* One more spot...
* Add method back in because of caches
* Update specs to match new functionality
* Fix typo
* Remove unused methods
* Remove mock from specs to test the actual Suggester
* Fix articles API top articles n+1
* Fix n+1 in articles API with state parameter
* Remove eager loading for organization dashboard
* Eager load notifiables in notifications only when needed
* Algolia does not like this
* Add collection ids to Api (reading + filtering)
- refactored controller
- modifyied views
- added tests
* Add collection ids to Api (reading + filtering): requested changes
- changed order in service
- proper test in filtering
* Preload organization, not user
* Preload users only when needed
* Pre-load podcasts for podcast episodes in API
* Avoid eager loading error by loading rating votes separately
* Preload associations for moderation
* Preload user comments in trees
* Preload organization for non org dashboard and cleanup queries
* Optimize ArticleSuggester to only load N articles at need
* Remove eager loading and pass variables to partials for easier debug
* Reorganize tags validation code and ignore actsastaggableon eager loading issues
* Remove unused eager loading and bring up comments relation
* Preload podcasts when loading podcast episodes
* Fix views specs
* Make sure ArticleSuggester never returns duplicates
* Remove commented code
* Re-trigger build
* Move suggested articles back to view to respect fragment caching
* Use published scope for articles
* Fix variable name
* The sequencing in the union query matters
* Fix spec
* Restore a published: true condition
* This test is actually misleading due to the union
* Revert this change, not sure why it's not a relation
* Fix useless diff
* filter unnecessary queries
* Adjust article query in a couple places
* Replace tagged_with in main tag query
* Cache_tagged_with additional queries
* Modify test
* Modify cached_tagged_with to account for single tags
* Add cached_tagged_with in a few more places
* Initial automatic cleanup with rubocop
* Fix syntax error introduced by rubocop
* Cleanup seeds file
* Cleanup lib folder
* Exclude bin folder because it contains auto generated files
* Make Rubocop a little bit more chatty
* Block length should not include comments in the count
* Cleanup config folder
* Cleanup specs
* Updated Rubocop version and generated a todo file
* Fix broken ArticlesApi spec
* Fix tests
* Restored rubocop pre-commit hook
