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44 lines
2.2 KiB
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44 lines
2.2 KiB
ReStructuredText
.. _extension:
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The Extension Dialog
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Use the *Extension* dialog to install a new extension into the current database. An extension is a collection of SQL objects that add targeted functionality to your Postgres installation. The *Extension* dialog adds the functionality of an extension to the current database only; you must register the extension in each database that use the extension. Before you load an extension into a database, you should confirm that any pre-requisite files are installed.
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The *Extension* dialog allows you to implement options of the CREATE EXTENSION command through the following dialog tabs: *General* and *Definition*. The *SQL* tab displays the SQL code generated by dialog selections.
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.. image:: images/extension_general.png
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Use the fields in the *General* tab to identify an extension:
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* Use the drop-down listbox in the *Name* field to select the extension. Each extension must have a unique name.
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* Store notes about the extension in the *Comment* field.
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Click the *Definition* tab to continue.
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.. image:: images/extension_definition.png
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Use the *Definition* tab to select the *Schema* and *Version*:
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* Use the drop-down listbox next to *Schema* to select the name of the schema in which to install the extension's objects.
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* Use the drop-down listbox next to *Version* to select the version of the extension to install.
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Click the *SQL* tab to continue.
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Your entries in the *Extension* dialog generate a SQL command (see an example below). Use the *SQL* tab for review; revisit or switch tabs to make any changes to the SQL command.
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**Example**
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The following is an example of the sql command generated by user selections in the *Extension* dialog:
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.. image:: images/extension_sql.png
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The command creates the *chkpass* extension in the *public* schema. It is version *1.0* of *chkpass*.
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* Click the *Info* button (i) to access online help. View context-sensitive help in the *Tabbed browser*, where a new tab displays the PostgreSQL core documentation.
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* Click the *Save* button to save work.
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* Click the *Cancel* button to exit without saving work.
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* Click the *Reset* button to restore configuration parameters.
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