ENH: add support for datetime.date/time in to_sql (GH6932)
fix groupby with tuple bug
Merge pull request #8123 from TomAugspurger/groupby-tuple

BUG: fix groupby with tuple bug
Merge pull request #8090 from jorisvandenbossche/sql-date-time

ENH: add support for datetime.date/time in to_sql (GH6932)
ENH: add schema support to sql functions
ENH: add schema support to sql functions + add tests