Misspelled query modifiers like groupy_by can result in all results being returned

If a query with an extract clause contains a misspelled option, the clause is completely ignored resulting in a misleading response body. Eg. ["from", "reports", ["extract", [["function", "count", "certname"]], ["null?", "type", false], ["groupy_by", "certname"]]] will return all the reports because the extract will be ignored ( it contains groupy_by instead of group_by).   Instead of returning nil for a malformed extract clause (when converting the query to sql plan), try to identify the misspelled part and log an appropriate error message.