sql - Can we have a where clause for delete from partition ? -

I have a table partition based on time stamp (like partition1 9 months old data , partition2 has 6 months old data, partition3 has 3 months old data and so on)

Depending on the basis the data will be deleted.

  Delete 1 partition from Partition 3 where the group id (selection table * from * group_code = 'pilot');    Will this operation only remove from  partiton3 ?   
 


  







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