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@@ -623,6 +623,19 @@ module ActiveRecord
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         end
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       end
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+      # Returns the current database name.
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+      def current_database
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+        query('select current_database()')[0][0]
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+      end
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+
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+      # Returns the current database encoding format.
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+      def encoding
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+        query(<<-end_sql)[0][0]
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+          SELECT pg_encoding_to_char(pg_database.encoding) FROM pg_database
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+          WHERE pg_database.datname LIKE '#{current_database}'
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+        end_sql
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+      end
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+
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       # Sets the schema search path to a string of comma-separated schema names.
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       # Names beginning with $ have to be quoted (e.g. $user => '$user').
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       # See: http://www.postgresql.org/docs/current/static/ddl-schemas.html

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@@ -65,6 +65,12 @@ class AdapterTest < ActiveRecord::TestCase
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     end
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   end
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+  if current_adapter?(:PostgreSQLAdapter)
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+    def test_encoding
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+      assert_not_nil @connection.encoding
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+    end
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+  end
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+
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   def test_table_alias
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     def @connection.test_table_alias_length() 10; end
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     class << @connection

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@@ -141,6 +141,9 @@ namespace :db do
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     when 'mysql'
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       ActiveRecord::Base.establish_connection(config)
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       puts ActiveRecord::Base.connection.charset
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+    when 'postgresql'
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+      ActiveRecord::Base.establish_connection(config)
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+      puts ActiveRecord::Base.connection.encoding
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     else
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       puts 'sorry, your database adapter is not supported yet, feel free to submit a patch'
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     end