Hi all, One of my entities 'E' may be 'tagged' with an arbitrary set of 256 tags 'T'. A first approach could be to add a M:N relationship between 'E' and 'T'. A second way to do this could be to add a BIT(256) datatype to 'E', setting bits to '1' if the entity is tagged with each one of the 256 tags (i.e. using a 'bitmask' on the set of tags). Since querying entities 'E' with a certain set of tags 'T' must be very fast I was wondering if the second approach would be faster. What do you think? Thanks for any hints, Antonio -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
