pydata/pandas — pull request #4304 by davidshinn (2013-07-20 04:58:52+00:00)
Title: BUG/TST: Fix io.sql.write_frame replace bug and complete test coverage of if_exists functionality 

This fixes #2971 and #4110. This also provides test coverage for the different values for the if_exists argument for io.sql.write_frame.