TODO in veritas-sql-generator-0.0.3 vs TODO in veritas-sql-generator-0.0.4

@@ -1,7 +1,7 @@
-* Replace some of the conditional logic with polymorphism, especially
-  where there is special case logic for certain types of generators
+* Replace some of the conditional function with polymorphism, especially
+  where there is special case function for certain types of generators
   within other generators.
   * Replace Equality/Inequality with classes that handle all of the
     special cases.
   * Use different classes for inclusive/exclusive Range literals so that
     they can be serialized to SQL differently.
@@ -13,5 +13,19 @@
 
 * Handle cases where an Inequality/Exclusion predicate is used (or a
   Negation wrapping an Equality/Inclusion) on an *optional* attribute.
   * Add "OR attribute IS NULL" to the statement to ensure cases when
     the value is NULL still matches.
+
+* Handle cases where WHERE clause does and does not reference a function
+  in the SELECT list.
+  * It should collapse the inner subquery when there is no reference, and
+    keep the subquery when it is referenced.
+  * This will likely apply to projection and rename operators too.
+
+* When Restriction wraps a Summarization, and it would normally wrap the
+  statement and apply a WHERE clause, it should apply the clause using
+  HAVING instead.
+
+* Handle case where Extension does not reference a column in the
+  wrapped Summarization or Rename. It should be safe to collapse the query
+  in those cases.