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68 lines
2.2 KiB
ReStructuredText
68 lines
2.2 KiB
ReStructuredText
.. _user_mapping_dialog:
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****************************
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`User Mapping Dialog`:index:
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****************************
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Use the *User Mapping* dialog to define a new mapping of a user to a foreign
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server.
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The *User Mapping* dialog organizes the development of a user mapping through
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the following dialog tabs: *General* and *Options*. The *SQL* tab displays the
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SQL code generated by dialog selections.
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.. image:: images/user_mapping_general.png
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:alt: User Mapping dialog general tab
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:align: center
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Use the drop-down listbox in the *User* field in the *General* tab to identify
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the connecting role:
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* Select *CURRENT_USER* to use the name of the current role.
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* Select *PUBLIC* if no other user-specific mapping is applicable.
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* Select a pre-defined role name to specify the name of an existing user.
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Click the *Options* tab to continue.
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.. image:: images/user_mapping_options.png
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:alt: User Mapping dialog options tab
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:align: center
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Use the fields in the *Options* tab to specify connection options; the accepted
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option names and values are specific to the foreign data wrapper associated with
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the server specified in the user mapping. Click the *Add* button to add an
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option/value pair.
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* Specify the option name in the *Option* field.
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* Provide a corresponding value in the *Value* field.
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Click *Add* to specify each additional option/value pair; to discard an option,
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click the trash icon to the left of the row and confirm deletion in the *Delete
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Row* popup.
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Click the *SQL* tab to continue.
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Your entries in the *User Mapping* dialog generate a SQL command (see an
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example below). Use the *SQL* tab for review; revisit or switch tabs to make
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any changes to the SQL command.
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Example
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*******
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The following is an example of the sql command generated by user selections in
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the *User Mapping* dialog:
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.. image:: images/user_mapping_sql.png
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:alt: User Mapping dialog sql tab
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:align: center
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The example shown demonstrates a user mapping for the *hdfs_server*. The user is
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*CURRENT_USER* with a password *secret*.
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* Click the *Info* button (i) to access online help.
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* Click the *Save* button to save work.
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* Click the *Close* button to exit without saving work.
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* Click the *Reset* button to restore configuration parameters.
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