On Fri, Sep 22, 2017 at 7:52 PM, Paul A Jungwirth <pj@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Is a Datum always 8 bytes for 64-bit architectures? Never mind, I found this in `pg_config.h`: /* float8, int8, and related values are passed by value if 'true', by reference if 'false' */ #define FLOAT8PASSBYVAL true Paul -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general