CREATE MA...IZED VIEW(7) PostgreSQL 18.6 Documentation CREATE MA...IZED VIEW(7) NAME CREATE_MATERIALIZED_VIEW - define a new materialized view SYNOPSIS CREATE MATERIALIZED VIEW [ IF NOT EXISTS ] table_name [ (column_name [, ...] ) ] [ USING method ] [ WITH ( storage_parameter [= value] [, ... ] ) ] [ TABLESPACE tablespace_name ] AS query [ WITH [ NO ] DATA ] DESCRIPTION CREATE MATERIALIZED VIEW defines a materialized view of a query. The query is executed and used to populate the view at the time the command is issued (unless WITH NO DATA is used) and may be refreshed later using REFRESH MA- TERIALIZED VIEW. CREATE MATERIALIZED VIEW is similar to CREATE TABLE AS, except that it also remembers the query used to initialize the view, so that it can be re- freshed later upon demand. A materialized view has many of the same proper- ties as a table, but there is no support for temporary materialized views. CREATE MATERIALIZED VIEW requires CREATE privilege on the schema used for the materialized view. PARAMETERS IF NOT EXISTS Do not throw an error if a materialized view with the same name already exists. A notice is issued in this case. Note that there is no guaran- tee that the existing materialized view is anything like the one that would have been created. table_name The name (optionally schema-qualified) of the materialized view to be created. The name must be distinct from the name of any other relation (table, sequence, index, view, materialized view, or foreign table) in the same schema. column_name The name of a column in the new materialized view. If column names are not provided, they are taken from the output column names of the query. USING method This optional clause specifies the table access method to use to store the contents for the new materialized view; the method needs be an ac- cess method of type TABLE. See Chapter 62 for more information. If this option is not specified, the default table access method is chosen for the new materialized view. See default_table_access_method for more in- formation. WITH ( storage_parameter [= value] [, ... ] ) This clause specifies optional storage parameters for the new material- ized view; see Storage Parameters in the CREATE TABLE (CREATE_TABLE(7)) documentation for more information. All parameters supported for CREATE TABLE are also supported for CREATE MATERIALIZED VIEW. See CREATE TABLE (CREATE_TABLE(7)) for more information. TABLESPACE tablespace_name The tablespace_name is the name of the tablespace in which the new ma- terialized view is to be created. If not specified, default_tablespace is consulted. query A SELECT, TABLE, or VALUES command. This query will run within a secu- rity-restricted operation; in particular, calls to functions that them- selves create temporary tables will fail. Also, while the query is run- ning, the search_path is temporarily changed to pg_catalog, pg_temp. WITH [ NO ] DATA This clause specifies whether or not the materialized view should be populated at creation time. If not, the materialized view will be flagged as unscannable and cannot be queried until REFRESH MATERIALIZED VIEW is used. COMPATIBILITY CREATE MATERIALIZED VIEW is a PostgreSQL extension. SEE ALSO ALTER MATERIALIZED VIEW (ALTER_MATERIALIZED_VIEW(7)), CREATE TABLE AS (CRE- ATE_TABLE_AS(7)), CREATE VIEW (CREATE_VIEW(7)), DROP MATERIALIZED VIEW (DROP_MATERIALIZED_VIEW(7)), REFRESH MATERIALIZED VIEW (REFRESH_MATERIAL- IZED_VIEW(7)) PostgreSQL 18.6 2026 CREATE MA...IZED VIEW(7)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | COMPATIBILITY | SEE ALSO
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