1ALTER USER MAPPING(7)            SQL Commands            ALTER USER MAPPING(7)
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NAME

6       ALTER USER MAPPING - change the definition of a user mapping
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SYNOPSIS

10       ALTER USER MAPPING FOR { username | USER | CURRENT_USER | PUBLIC }
11           SERVER servername
12           OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ] )
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DESCRIPTION

16       ALTER USER MAPPING changes the definition of a user mapping.
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18       The  owner  of a foreign server can alter user mappings for that server
19       for any user. Also, a user can alter a user mapping for  his  own  user
20       name if USAGE privilege on the server has been granted to the user.
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PARAMETERS

23       username
24              User  name  of the mapping. CURRENT_USER and USER match the name
25              of the current user. PUBLIC is used to  match  all  present  and
26              future user names in the system.
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28       servername
29              Server name of the user mapping.
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31       OPTIONS ( [ ADD | SET | DROP ] option ['value'] [, ... ] )
32              Change  options  for  the user mapping. The new options override
33              any previously specified options. ADD, SET, and DROP specify the
34              action  to  be  performed.  ADD  is  assumed  if no operation is
35              explicitly specified. Option names must be unique;  options  are
36              also validated by the server's foreign-data wrapper.
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EXAMPLES

39       Change the password for user mapping bob, server foo:
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41       ALTER USER MAPPING FOR bob SERVER foo OPTIONS (user 'bob', password 'public');
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COMPATIBILITY

45       ALTER  USER  MAPPING  conforms  to ISO/IEC 9075-9 (SQL/MED). There is a
46       subtle syntax issue: The standard omits the FOR key  word.  Since  both
47       CREATE  USER  MAPPING  and DROP USER MAPPING use FOR in analogous posi‐
48       tions, and IBM DB2 (being the other major SQL/MED implementation)  also
49       requires  it for ALTER USER MAPPING, PostgreSQL diverges from the stan‐
50       dard here in the interest of consistency and interoperability.
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SEE ALSO

53       CREATE  USER  MAPPING  [create_user_mapping(7)],  DROP   USER   MAPPING
54       [drop_user_mapping(7)]
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58SQL - Language Statements         2014-02-17             ALTER USER MAPPING(7)
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