Check a materialized view exists?

Question

How do I check if a materialized view exists?

I have created one and checked in information_schema.tables and information_schema.viewsbut I cannot see it.

Where should I be looking?

Answer 1

Use the system catalog pg_class, e.g.:

create materialized view my_view as select 1;

select relname, relkind
from pg_class
where relname = 'my_view'
and relkind = 'm';

 relname | relkind 
---------+---------
 my_view | m
(1 row)

or the system view pg_matviews:

select *
from pg_matviews
where matviewname = 'my_view';  

 schemaname | matviewname | matviewowner | tablespace | hasindexes | ispopulated | definition 
------------+-------------+--------------+------------+------------+-------------+------------
 public     | my_view     | postgres     |            | f          | t           |  SELECT 1;
(1 row)