Table: georgia_gubernatorial_2010_polls
Columns: poll_source
dates_administered
roy_barnes
thurbert_baker
dubose_porter
david_poythress
undecided

Question: What was the undecided with Roy Barnes at 47%?
SQL: SELECT "undecided" FROM georgia_gubernatorial_2010_polls WHERE "roy_barnes" = '47%'

Question: What is the DuBose Porter with Roy Barnes at 54%?
SQL: SELECT "dubose_porter" FROM georgia_gubernatorial_2010_polls WHERE "roy_barnes" = '54%'