`to_sql` dies on columns with closed parens
In [3]: pd.show_versions()

INSTALLED VERSIONS

commit: 9a66dbb
python: 2.7.6.final.0
python-bits: 64
OS: Linux
OS-release: 3.13.0-32-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8

pandas: 0.15.0-62-g9a66dbb
nose: None
Cython: 0.20.1post0
numpy: 1.8.1
scipy: 0.13.3
statsmodels: None
IPython: 1.2.1
sphinx: None
patsy: None
dateutil: 2.2
pytz: 2014.7
bottleneck: None
tables: None
numexpr: None
matplotlib: None
openpyxl: None
xlrd: 0.9.3
xlwt: None
xlsxwriter: None
lxml: None
bs4: None
html5lib: None
httplib2: None
apiclient: None
rpy2: None
sqlalchemy: 0.9.8
pymysql: None
psycopg2: 2.5.3 (dt dec pq3 ext)
