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-rw-r--r--lib/gitlab/sql/union.rb4
1 files changed, 1 insertions, 3 deletions
diff --git a/lib/gitlab/sql/union.rb b/lib/gitlab/sql/union.rb
index 1cd89b3a9c4..222021e8802 100644
--- a/lib/gitlab/sql/union.rb
+++ b/lib/gitlab/sql/union.rb
@@ -22,9 +22,7 @@ module Gitlab
# By using "unprepared_statements" we remove the usage of placeholders
# (thus fixing this problem), at a slight performance cost.
fragments = ActiveRecord::Base.connection.unprepared_statement do
- @relations.map do |rel|
- rel.reorder(nil).to_sql
- end
+ @relations.map { |rel| rel.reorder(nil).to_sql }.reject(&:blank?)
end
fragments.join("\nUNION\n")