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><A
NAME="INFOSCHEMA-USAGE-PRIVILEGES"
>34.56. <TT
CLASS="LITERAL"
>usage_privileges</TT
></A
></H1
><P
>   The view <TT
CLASS="LITERAL"
>usage_privileges</TT
> identifies
   <TT
CLASS="LITERAL"
>USAGE</TT
> privileges granted on various kinds of
   objects to a currently enabled role or by a currently enabled role.
   In <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>, this currently applies to
   collations, domains, foreign-data wrappers, foreign servers, and sequences.  There is one
   row for each combination of object, grantor, and grantee.
  </P
><P
>   Since collations do not have real privileges
   in <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>, this view shows implicit
   non-grantable <TT
CLASS="LITERAL"
>USAGE</TT
> privileges granted by the
   owner to <TT
CLASS="LITERAL"
>PUBLIC</TT
> for all collations.  The other
   object types, however, show real privileges.
  </P
><P
>   In PostgreSQL, sequences also support <TT
CLASS="LITERAL"
>SELECT</TT
>
   and <TT
CLASS="LITERAL"
>UPDATE</TT
> privileges in addition to
   the <TT
CLASS="LITERAL"
>USAGE</TT
> privilege.  These are nonstandard and therefore
   not visible in the information schema.
  </P
><DIV
CLASS="TABLE"
><A
NAME="AEN51495"
></A
><P
><B
>Table 34-54. <TT
CLASS="LITERAL"
>usage_privileges</TT
> Columns</B
></P
><TABLE
BORDER="1"
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><COL><COL><COL><THEAD
><TR
><TH
>Name</TH
><TH
>Data Type</TH
><TH
>Description</TH
></TR
></THEAD
><TBODY
><TR
><TD
><TT
CLASS="LITERAL"
>grantor</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the role that granted the privilege</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>grantee</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the role that the privilege was granted to</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>object_catalog</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the database containing the object (always the current database)</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>object_schema</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the schema containing the object, if applicable,
      else an empty string</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>object_name</TT
></TD
><TD
><TT
CLASS="TYPE"
>sql_identifier</TT
></TD
><TD
>Name of the object</TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>object_type</TT
></TD
><TD
><TT
CLASS="TYPE"
>character_data</TT
></TD
><TD
><TT
CLASS="LITERAL"
>COLLATION</TT
> or <TT
CLASS="LITERAL"
>DOMAIN</TT
> or <TT
CLASS="LITERAL"
>FOREIGN DATA WRAPPER</TT
> or <TT
CLASS="LITERAL"
>FOREIGN SERVER</TT
> or <TT
CLASS="LITERAL"
>SEQUENCE</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>privilege_type</TT
></TD
><TD
><TT
CLASS="TYPE"
>character_data</TT
></TD
><TD
>Always <TT
CLASS="LITERAL"
>USAGE</TT
></TD
></TR
><TR
><TD
><TT
CLASS="LITERAL"
>is_grantable</TT
></TD
><TD
><TT
CLASS="TYPE"
>yes_or_no</TT
></TD
><TD
><TT
CLASS="LITERAL"
>YES</TT
> if the privilege is grantable, <TT
CLASS="LITERAL"
>NO</TT
> if not</TD
></TR
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