DROP USER
Name
DROP USER -- remove a database roleSynopsis
DROP USER [ IF EXISTS ] name [, ...]
Description
DROP USER
is simply an alternate spelling of DROP ROLE.
Compatibility
The DROP USER
statement is a PostgreSQL extension. The SQL standard leaves the definition of users to the implementation.
See Also
DROP ROLE
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Licensed under the PostgreSQL License.
https://www.postgresql.org/docs/9.6/sql-dropuser.html