Description:
When using the "Beautify query" function on a CREATE TABLE statement, I get an "unhandled exception" message.

This is the trace from the application:

** Message: function call error
Traceback (most recent call last):
  File "/Applications/MySQLWorkbench.app/Contents/PlugIns/sqlide_grt.py", line 155, in enbeautificate
    fmted = p.run()
  File "/Applications/MySQLWorkbench.app/Contents/PlugIns/sql_reformatter.py", line 722, in run
    self.preprocess(self.ast)
AttributeError: SQLPrettifier_CREATE_TABLE instance has no attribute 'preprocess'

How to repeat:
1. open the SQL editor
2. write down "create table t1 (i int)"
3. invoke the "Beautify query" feature from /edit/format

Screen shot of the failure

Attachment: bug58356.png (image/png, text), 111.93 KiB.

The same exception happens on CREATE PROCEDURE. e.g:
create procedure p1() deterministic select 1;

There is no exception on CREATE EVENT/FUNCTION/TRIGGER, but no beautification either.

Also fails on START/STOP SLAVE

Also fails sometimes on EXPLAIN.
e.g: 
EXPLAIN SELECT @@server_id

EXPLAIN SELECT (select 1 from t1) as x

Thank you for the bug report.

The exception on CREATE TABLE (and others) is a bug, but the reformatter currently only supports SELECT statements and if wasn't for the bug, CREATE TABLE too.

If the reformatter only supports SELECT statements, please make it refuse other queries with an appropriate message instead of doing what it is doing today.

fix confirmed in repository

An entry has been added to the 5.2.31 changelog:

In the SQL Editor, when using the Beautify query facility on a CREATE TABLE statement, an unhandled exception was generated.