Re: patch: Add JSON datatype to PostgreSQL (GSoC, WIP)

I copied the 5 sample documents from json.org's example section for these tests.  These are loaded into a table with a varchar column 1000 times each (so the test table has 5000 rows in it).  In all situations, the binary encoding was smaller than the normalized text form (between 9 and 23% smaller).  I think there are cases where the binary form will be larger than the corresponding text form, but I don't think they would be very common.