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-rw-r--r--lib/arel/visitors/join_sql.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/arel/visitors/join_sql.rb b/lib/arel/visitors/join_sql.rb
index 7ba2bde540..427f2bb726 100644
--- a/lib/arel/visitors/join_sql.rb
+++ b/lib/arel/visitors/join_sql.rb
@@ -12,7 +12,8 @@ module Arel
private
def visit_Arel_Nodes_SelectCore o
- [o.froms].grep(Nodes::Join).map { |x| visit x }.join ', '
+ return '' unless Nodes::Join === o.from
+ visit o.from
end
def visit_Arel_Nodes_StringJoin o