There are other possibilities: * using interned Strings as keys will prevent duplicate storage of the keys http://docs.oracle.com/javase/6/docs/api/java/lang/String.html#intern%28%29
* you could make a custom data structure that stores the keys / rows as vectors and generates a sequence of maps when you want to iterate over the rows Type hinted record fields only matter for memory usage when you're hinting to primitive types. Everything else in Java, including Strings, is an object, with the same memory overhead. -Stuart Sierra clojure.com -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
