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TRUNCATE, DELETE, and DROP are different in that: TRUNCATE TABLE deletes content, releases space, but does not delete definitions. DELETE TABLE deletes content, but does not delete definitions or release space. DROP TABLE deletes content and definitions, and releases space.
How Do I Delete Duplicate Table Data in GaussDB(DWS)?
If the physical space usage does not decrease after you run the VACUUM FULL command, check whether there were other active transactions (started before you delete data transactions and not ended before you run VACUUM FULL).
After a GaussDB(DWS) cluster is created, you can modify its security group settings, or you can add, delete, or modify security group rules in the current security group. Change the security group to another one: Log in to the GaussDB(DWS) management console.
