deep copies of statements aren't necessary. shallow copy the top-level arrays.

5 files changed, 9 insertions, 9 deletions

diff --git a/lib/arel/nodes/delete_statement.rb b/lib/arel/nodes/delete_statement.rb
index b65177af05..610d69e460 100644
--- a/lib/arel/nodes/delete_statement.rb
+++ b/lib/arel/nodes/delete_statement.rb
@@ -10,7 +10,7 @@ module Arel
 
       def initialize_copy other
         super
-        @wheres = @wheres.map { |o| o.clone }        
+        @wheres = @wheres.clone
       end
     end
   end
diff --git a/lib/arel/nodes/insert_statement.rb b/lib/arel/nodes/insert_statement.rb
index 8c6e1234d0..629e7a8513 100644
--- a/lib/arel/nodes/insert_statement.rb
+++ b/lib/arel/nodes/insert_statement.rb
@@ -11,8 +11,8 @@ module Arel
 
       def initialize_copy other
         super
-        @columns = @columns.map { |o| o.clone }
-        @values =  @values.map  { |o| o.clone }
+        @columns = @columns.clone
+        @values =  @values.clone
       end
     end
   end
diff --git a/lib/arel/nodes/select_core.rb b/lib/arel/nodes/select_core.rb
index 7ebdab315d..5e27c7c414 100644
--- a/lib/arel/nodes/select_core.rb
+++ b/lib/arel/nodes/select_core.rb
@@ -11,9 +11,9 @@ module Arel
 
       def initialize_copy other
         super
-        @froms = @froms.map { |o| o.clone }
-        @projections = @projections.map { |o| o.clone }
-        @wheres = @wheres.map { |o| o.clone }
+        @froms = @froms.clone
+        @projections = @projections.clone
+        @wheres = @wheres.clone
       end
     end
   end
diff --git a/lib/arel/nodes/select_statement.rb b/lib/arel/nodes/select_statement.rb
index d00a079dc3..b7c59da275 100644
--- a/lib/arel/nodes/select_statement.rb
+++ b/lib/arel/nodes/select_statement.rb
@@ -12,7 +12,7 @@ module Arel
 
       def initialize_copy other
         super
-        @cores = @cores.map { |o| o.clone }
+        @cores = @cores.clone
       end
     end
   end
diff --git a/lib/arel/nodes/update_statement.rb b/lib/arel/nodes/update_statement.rb
index 27e3e4e6ac..7a1ce9a7b1 100644
--- a/lib/arel/nodes/update_statement.rb
+++ b/lib/arel/nodes/update_statement.rb
@@ -11,8 +11,8 @@ module Arel
 
       def initialize_copy other
         super
-        @wheres = @wheres.map { |o| o.clone }
-        @values = @values.map { |o| o.clone }
+        @wheres = @wheres.clone
+        @values = @values.clone
       end
     end
   end