'\" t
.\"     Title: ALTER USER
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 2026
.\"    Manual: PostgreSQL 15.18 Documentation
.\"    Source: PostgreSQL 15.18
.\"  Language: English
.\"
.TH "ALTER USER" "7" "2026" "PostgreSQL 15.18" "PostgreSQL 15.18 Documentation"
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.SH "NAME"
ALTER_USER \- change a database role
.SH "SYNOPSIS"
.sp
.nf
ALTER USER \fIrole_specification\fR [ WITH ] \fIoption\fR [ \&.\&.\&. ]

where \fIoption\fR can be:

      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | BYPASSRLS | NOBYPASSRLS
    | CONNECTION LIMIT \fIconnlimit\fR
    | [ ENCRYPTED ] PASSWORD \*(Aq\fIpassword\fR\*(Aq | PASSWORD NULL
    | VALID UNTIL \*(Aq\fItimestamp\fR\*(Aq

ALTER USER \fIname\fR RENAME TO \fInew_name\fR

ALTER USER { \fIrole_specification\fR | ALL } [ IN DATABASE \fIdatabase_name\fR ] SET \fIconfiguration_parameter\fR { TO | = } { \fIvalue\fR | DEFAULT }
ALTER USER { \fIrole_specification\fR | ALL } [ IN DATABASE \fIdatabase_name\fR ] SET \fIconfiguration_parameter\fR FROM CURRENT
ALTER USER { \fIrole_specification\fR | ALL } [ IN DATABASE \fIdatabase_name\fR ] RESET \fIconfiguration_parameter\fR
ALTER USER { \fIrole_specification\fR | ALL } [ IN DATABASE \fIdatabase_name\fR ] RESET ALL

where \fIrole_specification\fR can be:

    \fIrole_name\fR
  | CURRENT_ROLE
  | CURRENT_USER
  | SESSION_USER
.fi
.SH "DESCRIPTION"
.PP
\fBALTER USER\fR
is now an alias for
\fBALTER ROLE\fR\&.
.SH "COMPATIBILITY"
.PP
The
\fBALTER USER\fR
statement is a
PostgreSQL
extension\&. The SQL standard leaves the definition of users to the implementation\&.
.SH "SEE ALSO"
ALTER ROLE (\fBALTER_ROLE\fR(7))