select max(sd_id) from final table
(insert into Sd_Source  
select ifnull(max(sd_id), 0) + 1, 1, '309180700'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())       
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 2, '001400306'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 3, '020007009'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all 
select ifnull(max(sd_id), 0) + 1, 4, '000004000'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 5, '007000600'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 6, '000700000'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 7, '800900070'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 8, '403002100'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
union all
select ifnull(max(sd_id), 0) + 1, 9, '000068905'
     , ifnull(max(sd_id), 0) + 1, timestamp(generate_unique())
  from Sd_Source 
);