def on_headers(self, response):
        pass
Creates the SQL snippet for a column. Used by add_column and add_table.
dataset/ETHPy150Open ecdavis/pants/pants/http/client.py/HTTPClient.on_headers--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/South-1.0.2/south/db/generic.py/DatabaseOperations.column_sql