On Oct 19, 2022, at 1:40 AM, Tianchen Tang via Freeradius-Users <freeradius-users@lists.freeradius.org> wrote:

What is the data type returned by sql query using module syntax?

It returns strings. Which can then be parsed into any data type.

Does freeradius support 8 byte integers for sql query result? What will happen if the sql returns 8 byte integer? Will it overflow?

FreeRADIUS supports 64-bit integers for all purposes, including parsing them from a string. Alan DeKok.