mirror of
https://github.com/pgadmin-org/pgadmin4.git
synced 2024-11-29 20:13:50 -06:00
217 lines
14 KiB
ReStructuredText
217 lines
14 KiB
ReStructuredText
.. _tabbed_browser:
|
|
|
|
***********************
|
|
`Tabbed Browser`:index:
|
|
***********************
|
|
|
|
The right pane of the *pgAdmin* window features a collection of tabs that
|
|
display information about the object currently selected in the *pgAdmin* tree
|
|
control in the left window. Select a tab to access information about the
|
|
highlighted object in the tree control.
|
|
|
|
.. image:: images/main_dashboard.png
|
|
:alt: Dashboard panel
|
|
:align: center
|
|
|
|
The graphs on the *Dashboard* tab provides an active analysis of the usage
|
|
statistics for the selected server or database:
|
|
|
|
* The *Server sessions* or *Database sessions* graph displays the interactions
|
|
with the server or database.
|
|
* The *Transactions per second* graph displays the commits, rollbacks, and
|
|
total transactions per second that are taking place on the server or database.
|
|
* The *Tuples in* graph displays the number of tuples inserted, updated, and
|
|
deleted on the server or database.
|
|
* The *Tuples out* graph displays the number of tuples fetched and returned
|
|
from the server or database.
|
|
* The *Block I/O* graph displays the number of blocks read from the filesystem
|
|
or fetched from the buffer cache (but not the operating system's file system
|
|
cache) for the server or database.
|
|
|
|
The *Server activity* panel displays information about sessions, locks, prepared
|
|
transactions, and server configuration (if applicable). The information is
|
|
presented in context-sensitive tables. Use controls located above the table to:
|
|
|
|
* Click the *Refresh* button to update the information displayed in each table.
|
|
* Enter a value in the *Search* box to restrict the table content to one or more
|
|
sessions that satisfy the search criteria. For example, you can enter a
|
|
process ID to locate a specific session, or a session state (such as *idle*)
|
|
to locate all of the sessions that are in an idle state.
|
|
|
|
You can use icons in the *Sessions* table to review or control the state of a
|
|
session:
|
|
|
|
* Use the *Terminate* icon (located in the first column) to stop a session and
|
|
remove the session from the table. Before the server terminates the session,
|
|
you will be prompted to confirm your selection.
|
|
* Use the *Cancel* icon (located in the second column) to terminate an active
|
|
query without closing the session. Before canceling the query, the server
|
|
will prompt you to confirm your selection. When you cancel a query, the
|
|
value displayed in the *State* column of the table will be updated from
|
|
*Active* to *Idle*. The session will remain in the table until the session is
|
|
terminated.
|
|
* Use the *Details* icon (located in the third column) to open the *Details*
|
|
tab; the tab displays information about the selected session.
|
|
|
|
.. image:: images/main_properties_table.png
|
|
:alt: Properties panel
|
|
:align: center
|
|
|
|
The *Properties* tab displays information about the object selected.
|
|
|
|
Click the *Delete* icon in the toolbar under the browser tab to delete the
|
|
selected objects in the Properties panel.
|
|
|
|
Click the *Drop Cascade* icon in the toolbar under the browser tab to delete the
|
|
selected objects and all dependent objects in the Properties panel.
|
|
|
|
.. image:: images/main_properties_icons.png
|
|
:alt: Object editor icon
|
|
:align: center
|
|
|
|
Click the *Edit* icon in the toolbar under the browser tabs to launch the
|
|
*Properties* dialog for the selected object.
|
|
|
|
To preserve any changes to the *Properties* dialog, click the *Save* icon; your
|
|
modifications will be displayed in the updated *Properties* tab.
|
|
|
|
.. image:: images/main_properties_edit.png
|
|
:alt: Object editor window
|
|
:align: center
|
|
|
|
Details about the object highlighted in the tree control are displayed in one or
|
|
more collapsible panels. You can use the arrow to the left of each panel label
|
|
to open or close a panel.
|
|
|
|
.. image:: images/main_sql.png
|
|
:alt: SQL panel
|
|
:align: center
|
|
|
|
The *SQL* tab displays the SQL script that created the highlighted object, and
|
|
when applicable, a (commented out) SQL statement that will *DROP* the selected
|
|
object. You can copy the SQL statements to the editor of your choice using cut
|
|
and paste shortcuts.
|
|
|
|
.. image:: images/main_statistics.png
|
|
:alt: Statistics panel
|
|
:align: center
|
|
|
|
The *Statistics* tab displays the statistics gathered for each object on the
|
|
tree control; the statistics displayed in the table vary by the type of object
|
|
that is selected. Click a column heading to sort the table by the data displayed
|
|
in the column; click again to reverse the sort order. The following table lists
|
|
some of the statistics that are available:
|
|
|
|
.. table::
|
|
:class: longtable
|
|
:widths: 1 4
|
|
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| Panel | Description |
|
|
+============================+============================================================================================================+
|
|
| *PID* | The process ID associated with the row. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *User* | The name of the user that owns the object. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Database* | displays the database name. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Backends* | displays the number of current connections to the database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Backend start* | The start time of the backend process. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Xact Committed* | displays the number of transactions committed to the database within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Xact Rolled Back* | displays the number of transactions rolled back within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Blocks Read* | displays the number of blocks read from memory (in megabytes) within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Blocks Hit* | displays the number of blocks hit in the cache (in megabytes) within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tuples Returned* | displays the number of tuples returned within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tuples Fetched* | displays the number of tuples fetched within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tuples Inserted* | displays the number of tuples inserted into the database within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tuples Updated* | displays the number of tuples updated in the database within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tuples Deleted* | displays the number of tuples deleted from the database within the last week. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Last statistics reset* | displays the time of the last statistics reset for the database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Tablespace conflicts* | displays the number of queries canceled because of recovery conflict with dropped tablespaces in database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Lock conflicts* | displays the number of queries canceled because of recovery conflict with locks in database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Snapshot conflicts* | displays the number of queries canceled because of recovery conflict with old snapshots in database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Bufferpin conflicts* | displays the number of queries canceled because of recovery conflict with pinned buffers in database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Temporary files* | displays the total number of temporary files, including those used by the statistics collector. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Size of temporary files* | displays the size of the temporary files. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Deadlocks* | displays the number of queries canceled because of a recovery conflict with deadlocks in database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Block read time* | displays the number of milliseconds required to read the blocks read. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Block write time* | displays the number of milliseconds required to write the blocks read. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
| *Size* | displays the size (in megabytes) of the selected database. |
|
|
+----------------------------+------------------------------------------------------------------------------------------------------------+
|
|
|
|
.. image:: images/main_dependencies.png
|
|
:alt: Dependencies panel
|
|
:align: center
|
|
|
|
The *Dependencies* tab displays the objects on which the currently selected
|
|
object depends. If a dependency is dropped, the object currently selected in
|
|
the pgAdmin tree control will be affected. To ensure the integrity of the entire
|
|
database structure, the database server makes sure that you do not accidentally
|
|
drop objects that other objects depend on; you must use the DROP CASCADE command
|
|
to remove an object with a dependency.
|
|
|
|
The *Dependencies* table displays the following information:
|
|
|
|
* The *Type* field specifies the parent object type.
|
|
* The *Name* field specifies the identifying name of the parent object.
|
|
* The *Restriction* field describes the dependency relationship between the
|
|
currently selected object and the parent:
|
|
|
|
* If the field is *auto*, the selected object can be dropped separately from
|
|
the parent object, and will be dropped if the parent object is dropped.
|
|
* If the field is *internal*, the selected object was created during the
|
|
creation of the parent object, and will be dropped if the parent object
|
|
is dropped.
|
|
* If the field is *normal*, the selected object can be dropped without
|
|
dropping the parent object.
|
|
* If the field is *blank*, the selected object is required by the system,
|
|
and cannot be dropped.
|
|
|
|
.. image:: images/main_dependents.png
|
|
:alt: Dependents panel
|
|
:align: center
|
|
|
|
The *Dependents* tab displays a table of objects that depend on the object
|
|
currently selected in the *pgAdmin* browser. A dependent object can be dropped
|
|
without affecting the object currently selected in the *pgAdmin* tree control.
|
|
|
|
* The *Type* field specifies the dependent object type.
|
|
* The *Name* field specifies the identifying name for the dependent object.
|
|
* The *Database* field specifies the database in which the object resides.
|
|
|
|
.. image:: images/main_query_tool.png
|
|
:alt: Query tool panel
|
|
:align: center
|
|
|
|
Additional tabs open when you access the extended functionality offered by
|
|
pgAdmin tools (such as the Query tool, Debugger, or SQL editor). Use the close
|
|
icon (X) located in the upper-right corner of each tab to close the tab when you
|
|
are finished using the tool. Like permanent tabs, these tabs may be repositioned
|
|
in the pgAdmin client window.
|
|
|
|
By default, each time you open a tool, pgAdmin will open a new browser tab. You
|
|
can control this behavior by modifying the *Display* node of the *Preferences*
|
|
dialog for each tool. To open the *Preferences* dialog, select *Preferences*
|
|
from the *File* menu.
|