DROP COLUMN ENCRYPTION KEY
Function
CREATE COLUMN ENCRYPTION KEY deletes a column encryption key (CEK).
Precautions
Only the CEK owner or a user who has been granted the DROP permission can run this command. By default, the system administrator has this permission.
Syntax
1
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DROP COLUMN ENCRYPTION KEY [ IF EXISTS ] column_encryption_key_name [CASCADE]; |
Parameter Description
- IF EXISTS
If a specified CEK does not exist, a notice rather than an error is issued.
- column_encryption_key_name
Name of a CEK to be deleted.
Value range: a string. It is the name of an existing CEK.
Examples
1 2 3 4 |
-- Delete a CEK object. openGauss=# DROP COLUMN ENCRYPTION KEY ImgCEK CASCADE; ERROR: cannot drop column setting: imgcek cascadely because encrypted column depend on it. HINT: we have to drop encrypted column: name, ... before drop column setting: imgcek cascadely. |
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