Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/oli/work/external_tools/sqlglot/sqlglot/__init__.py", line 20, in transpile
    for expression in parse(code, read, error_level=error_level)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/__init__.py", line 13, in parse
    return dialect.parse(code, **opts)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/dialects.py", line 17, in parse
    return self.parser(**opts).parse(self.tokenizer().tokenize(code), code)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 170, in parse
    expressions.append(self._parse_statement())
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 234, in _parse_statement
    cte = self._parse_cte()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 337, in _parse_cte
    return self._parse_select()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 364, in _parse_select
    expressions=self._parse_csv(self._parse_expression),
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 813, in _parse_csv
    items = [parse()]
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 540, in _parse_expression
    return self._parse_alias(self._parse_conjunction())
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 543, in _parse_conjunction
    return self._parse_tokens(self._parse_equality, self.CONJUNCTION)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 546, in _parse_equality
    return self._parse_tokens(self._parse_comparison, self.EQUALITY)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 549, in _parse_comparison
    return self._parse_tokens(self._parse_range, self.COMPARISON)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 552, in _parse_range
    this = self._parse_bitwise()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 579, in _parse_bitwise
    return self._parse_tokens(self._parse_term, self.BITWISE)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 582, in _parse_term
    return self._parse_tokens(self._parse_factor, self.TERM)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 585, in _parse_factor
    return self._parse_tokens(self._parse_unary, self.FACTOR)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 821, in _parse_tokens
    this = parse()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 594, in _parse_unary
    return self._parse_special()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 603, in _parse_special
    return self._parse_primary()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 734, in _parse_primary
    return self._parse_column()
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 744, in _parse_column
    this = self._parse_function(self._prev)
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 664, in _parse_function
    self.raise_error('Expected )')
  File "/home/oli/work/external_tools/sqlglot/sqlglot/parser.py", line 197, in raise_error
    raise self.error
sqlglot.errors.ParseError: Expected ). Line 0, Col: 21.
select extract(month from '2021-01-31'::timestamp without time zone)