fix bugs

Author: bramtayl

src/QueryOperators.jl

@@ -23,8 +23,8 @@ struct GroupOfRows{Group, Row}
     row::Row
 end
 
-function key(group_of_rows::GroupOfRows)
-    translate(getfield(group_of_rows, :group))
+function QueryOperators.key(group_of_rows::GroupOfRows)
+    getfield(group_of_rows, :group)
 end
 
 function getproperty(group_of_rows::GroupOfRows, column_name::Symbol)

src/realize.jl

@@ -100,12 +100,16 @@ function realize(sql_expression::SQLExpression)
 end
 
 function realize_final(sql_expression::SQLExpression)
-    if sql_expression.call == :FROM
+    if sql_expression.call in (:FROM, Symbol("GROUP BY"), Symbol("INNER JOIN"))
         realize(SQLExpression(:SELECT, sql_expression, :*))
     else
         realize(sql_expression)
     end
 end
 
+function realize_final(something)
+    something
+end
+
 text(source_code::SourceCode) =
     realize_final(translate(source_code.code))