pg_matviews
   The view pg_matviews provides access to
   useful information about each materialized view in the database.
  
Table 54.13. pg_matviews Columns
| Column Type Description | 
|---|
| 
        Name of schema containing materialized view | 
| 
        Name of materialized view | 
| 
        Name of materialized view's owner | 
| 
        Name of tablespace containing materialized view (null if default for database) | 
| 
        True if materialized view has (or recently had) any indexes | 
| 
        True if materialized view is currently populated | 
| 
        Materialized view definition (a reconstructed SELECT query) |