> On Fri, Oct 11, 2019 at 1:40 PM Thomas Kellerer <spam_eater@xxxxxxx> wrote: > > I am a bit surprised by this (not because the jsonb sizes are generally > bigger, but that the string value takes less space) > > Is this caused by the fact that a string value compresses better internally? Those jsonb objects are quite small, so it could be that an alignment kicks in, since as far as I remember, jsonb header and data should be aligned by 4 byte boundary.