1 files changed, 14 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
index ac3b0f713d..ad12298013 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb
@@ -1,6 +1,6 @@
 module ActiveRecord
   module ConnectionAdapters
-    class PostgreSQLAdapter < AbstractAdapter
+    module PostgreSQL
       module Quoting
         # Escapes binary strings for bytea input to the database.
         def escape_bytea(value)
@@ -150,13 +150,11 @@ module ActiveRecord
         # - "schema.name".table_name
         # - "schema.name"."table.name"
         def quote_table_name(name)
-          schema, name_part = extract_pg_identifier_from_name(name.to_s)
-
-          unless name_part
-            quote_column_name(schema)
+          schema, table = Utils.extract_schema_and_table(name.to_s)
+          if schema
+            "#{quote_column_name(schema)}.#{quote_column_name(table)}"
           else
-            table_name, name_part = extract_pg_identifier_from_name(name_part)
-            "#{quote_column_name(schema)}.#{quote_column_name(table_name)}"
+            quote_column_name(table)
           end
         end
 
@@ -182,6 +180,15 @@ module ActiveRecord
           end
           result
         end
+
+        # Does not quote function default values for UUID columns
+        def quote_default_value(value, column) #:nodoc:
+          if column.type == :uuid && value =~ /\(\)/
+            value
+          else
+            quote(value, column)
+          end
+        end
       end
     end
   end