DatumGetSetP ensure_set_isof_type ensure_valid_set_set MAXIDX MINIDX PG_GETARG_SET_P PG_RETURN_SET_P set_find_value set_out_fn set_unnest_state_make set_unnest_state_next SetPGetDatum

set_unnest_state_make() SetUnnestState * set_unnest_state_make ( const Set *  set ) Create the initial state that persists across multiple calls of the function. Parameters [in] set Set value