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Redshift connection gets cast error in completion_refresh

See original GitHub issue

I just did a pip install -U pgcli to get 1.0.0 and attempted to connect to Redshift. The shell opens to a prompt like expected:

Version: 1.0.0
Chat: https://gitter.im/dbcli/pgcli
Mail: https://groups.google.com/forum/#!forum/pgcli
Home: http://pgcli.com
analytics>

But within a few seconds, the following exception appears:

Traceback (most recent call last):
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line r
    self.run()
  File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line n
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/local/lib/python2.7/site-packages/pgcli/completion_refresher.py", line 65, in _bg_refresh
    refresher(completer, executor)
  File "/usr/local/lib/python2.7/site-packages/pgcli/completion_refresher.py", line 105, in refresh_tables
    completer.extend_columns(executor.table_columns(), kind='tables')
  File "/usr/local/lib/python2.7/site-packages/pgcli/pgcompleter.py", line 142, in extend_columns
    for schema, relname, colname, datatype in column_data:
  File "/usr/local/lib/python2.7/site-packages/pgcli/pgexecute.py", line 364, in table_columns
    for row in self._columns(kinds=['r']):
  File "/usr/local/lib/python2.7/site-packages/pgcli/pgexecute.py", line 359, in _columns
    cur.execute(sql)
ProgrammingError: cannot cast type regtype to character varying

I can use the shell, but autocompletion of table names is not working.