delete data from Bigquery table that has all column matching value

Question

I have a table in BigQuery and that has total 620 columns. I need to delete duplicate records that has all 620 columns with matching values. Can anyone help me on this. thanks

Answer 1

Use below

select * from your_table t
qualify 1 = row_number() over(partition by format('%t', t))    

another option is

select as value any_value(t)
from your_table t
group by format('%t', t)