DOC: updated what's new (pandas-dev#34431)

Author: arw2019

doc/source/whatsnew/v1.1.0.rst

@@ -949,6 +949,7 @@ I/O
 - Bug in :meth:`~DataFrame.read_feather` was raising an `ArrowIOError` when reading an s3 or http file path (:issue:`29055`)
 - Bug in :meth:`~DataFrame.to_excel` could not handle the column name `render` and was raising an ``KeyError`` (:issue:`34331`)
 - Bug in :meth:`~SQLDatabase.execute` was raising a ``ProgrammingError`` for some DB-API drivers when the SQL statement contained the `%` character and no parameters were present (:issue:`34211`)
+- Bug in :meth: in earlier versions `pd.to_sql` was raising an error when reading DataFrames with `-np.inf` entries; added test (:issue: `34431`)
 
 Plotting
 ^^^^^^^^