Defining PostgreSQL Materialized Views

The following properties are applicable to a PostgreSQL Materialized View object.

Tab	Section	Property	Description	Additional Properties
		Name	Specifies the name of the materialized view
		Schema	Specifies the schema for the materialized view. Select a schema from the drop-down list or click to create a new one.
		If Not Exists	Specifies if the materialized view already exists, no exception is thrown, and no action happens
		Generate	Specifies whether a SQL statement for the collation is generated during forward engineering
General	General Options	Access Method	Specifies the table access method to use to store the contents for the new materialized view
		Storage Parameters	Specifies optional storage parameters for the new materialized view
		Tablespace	Specifies the name of the tablespace in which the new materialized view is to be created
		With Clause	Defines properties for the materialized view creation	With No Data: Specifies whether the query should copy the table structure into the new table With Data: Specifies whether the query should copy the produced data into the new table
Select		Available Tables and Views	Specifies a list of available tables and views	Under the Available Tables and Views, select the columns you want to define as view columns, and then click .
		Columns	Specifies the columns selected from the available tables and views
		Select Type	Specifies the expression type to indicate whether duplicate rows are returned	All: Indicates that the statement returns all rows, including duplicate row Distinct: Indicates that the statement discards duplicate rows and returns only the remaining rows Unique: Indicates that the statement discards duplicate value stored in a column or column sets Distinct Row: Indicates that the statement discards duplicate records and includes duplicate fields
		Alias	Specifies a temporary name given to a table, column, or expression present in a query based on the selected column
		Expression	Specifies the expression for a selected column
		New	Enables you to add a view column
		Delete	Enables you to delete a view column
Additional Properties		Limit	Limits the number of rows returned
		Offset	Specifies the hours, minutes, and seconds difference from UTC, and the maximum difference between the current row's column value and its preceding or following row's value
		Fetch	Retrieves rows from a query using a cursor
		With Query	Hides any real table with the same name when used in the main query. To reference a real table with the same name, specify the table's schema and name. You can assign an alias to the WITH query, similar to a table.
		Window	Specifies window function behavior in query's SELECT or ORDER BY clause, referencing WINDOW clause entries in OVER clauses. It saves typing for multiple window functions.
		Locking Clause	Specifies how data should be locked during a transaction. It allows you to control concurrent access to data by explicitly acquiring locks on tables or rows

Work with the other tabs in the editor to access additional design features, for example:
- Select the tables and views that you want to participate in the view using the From tab.
- Enter text to define a WHERE clause in the Clauses tab.
- View and change a user-provided DDL statement in the User Defined SQL tab.
- View the SQL code used during Forward Engineering using the SQL tab.
- Work with style sheets, which are used to format the font and other graphical themes used in the display of the view in the Style tab.
- Specify the icon style to use for the view in the Icon tab and to specify an image properties, refer to the Specify Image Properties topic.
(Optional) Click the Comment tab and enter any comments that you want to associate with the object.
(Optional) Click the Where Used tab to view where the object is used within the model.
(Optional) Click the UDP tab to work with user-defined properties for the object.
(Optional) Click the History tab to view the history information for the object.
(Optional) Click the Notes tab to view and edit user notes.
(Optional) Click the Extended Notes tab to view or edit user notes.
Click Close.
The materialized view is defined, and the PostgreSQL Materialized View Editor closes.

For more information, refer to PostgreSQL documentation.