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| author | Rafael Mendonça França <rafaelmfranca@gmail.com> | 2013-05-14 07:21:30 -0700 |
|---|---|---|
| committer | Rafael Mendonça França <rafaelmfranca@gmail.com> | 2013-05-14 07:21:30 -0700 |
| commit | 5b020fa1101b878e5f3b8b8a5e7d47e39b505b1e (patch) | |
| tree | 4dcbee09d374aa64614da8ad9b5f4e81465b71e1 /activerecord/lib | |
| parent | 010ea715f2a629059117054f8079a5a1f60f30f6 (diff) | |
| parent | 23c656c1bc113e5f198464ad29d72c5238bfd796 (diff) | |
| download | rails-5b020fa1101b878e5f3b8b8a5e7d47e39b505b1e.tar.gz rails-5b020fa1101b878e5f3b8b8a5e7d47e39b505b1e.tar.bz2 rails-5b020fa1101b878e5f3b8b8a5e7d47e39b505b1e.zip | |
Merge pull request #10616 from Empact/backport-distinct-distinct
Backport a super-simplified version of #6792, fixing that #exists? can produce invalid SQL: "SELECT DISTINCT DISTINCT"
Diffstat (limited to 'activerecord/lib')
| -rw-r--r-- | activerecord/lib/active_record/relation/finder_methods.rb | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index 08cfe4f70d..cdf18f8080 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -254,6 +254,7 @@ module ActiveRecord values = @klass.connection.distinct("#{@klass.connection.quote_table_name table_name}.#{primary_key}", orders) relation = relation.dup.select(values) + relation.uniq_value = nil id_rows = @klass.connection.select_all(relation.arel, 'SQL', relation.bind_values) ids_array = id_rows.map {|row| row[primary_key]} |