create schema default_guc;
set current_schema to 'default_guc';
set dolphin.use_const_value_as_colname = false;
show behavior_compat_options;
                     behavior_compat_options                      
------------------------------------------------------------------
 display_leading_zero,select_into_return_null,sql_mode_full_group
(1 row)

select 0.123;
 ?column? 
----------
    0.123
(1 row)

select md5(0.123);
               md5                
----------------------------------
 677738b969d6037efce2c328c6814580
(1 row)

select md5('0.123');
               md5                
----------------------------------
 677738b969d6037efce2c328c6814580
(1 row)

set behavior_compat_options = '';
show behavior_compat_options;
 behavior_compat_options 
-------------------------
 
(1 row)

select 0.123;
 ?column? 
----------
     .123
(1 row)

select md5(0.123);
               md5                
----------------------------------
 8fac4453738620d469930241cc87e8dc
(1 row)

select md5('0.123');
               md5                
----------------------------------
 677738b969d6037efce2c328c6814580
(1 row)

drop schema default_guc cascade;
reset current_schema;