translate exceptions on prepared statement failure

activerecord/lib/active_record/connection_adapters/abstract_adapter.rb

@@ -353,6 +353,13 @@ def close
 
       protected
 
+      def translate_exception(e, sql)
+        message = "#{e.class.name}: #{e.message}: #{sql}"
+        @logger.error message if @logger
+        exception = translate_exception(e, message)
+        exception.set_backtrace e.backtrace
+      end
+
       def log(sql, name = "SQL", binds = [], statement_name = nil)
         @instrumenter.instrument(
           "sql.active_record",
@@ -362,11 +369,7 @@ def log(sql, name = "SQL", binds = [], statement_name = nil)
           :statement_name => statement_name,
           :binds          => binds) { yield }
       rescue => e
-        message = "#{e.class.name}: #{e.message}: #{sql}"
-        @logger.error message if @logger
-        exception = translate_exception(e, message)
-        exception.set_backtrace e.backtrace
-        raise exception
+        raise translate_exception(e, sql)
       end
 
       def translate_exception(exception, message)

activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb

@@ -853,7 +853,11 @@ def prepare_statement(sql)
           sql_key = sql_key(sql)
           unless @statements.key? sql_key
             nextkey = @statements.next_key
-            @connection.prepare nextkey, sql
+            begin
+              @connection.prepare nextkey, sql
+            rescue => e
+              raise translate_exception(e, sql)
+            end
             # Clear the queue
             @connection.get_last_result
             @statements[sql_key] = nextkey