Chunksize not working in pandas.DataFrame.to_sql
I recently updated the panda version to 0.15 from 0.14 . I use the below code, but the chunksize parameter is not working,It doesn't  write the records in batches to the Database. I totally have 50,000 records in my DataFrame and it takes long time to execute. Thanks in advance

from sqlalchemy import create_engine
import iopro.pyodbc
engine = create_engine('mssql+pyodbc://147.117.20.144/HRMS_Test')
df.to_sql('test',engine, if_exists='append',index= False, index_label=None, chunksize=100)
