QUERY PLAN              
--------------------------------------
 - Plan:                             +
     Node Type: "Aggregate"          +
     Strategy: "Hashed"              +
     Partial Mode: "Simple"          +
     Parallel Aware: false           +
     Startup Cost: 18.82             +
     Total Cost: 18.86               +
     Plan Rows: 4                    +
     Plan Width: 9                   +
     Group Key:                      +
       - "relkind"                   +
     Plans:                          +
       - Node Type: "Seq Scan"       +
         Parent Relationship: "Outer"+
         Parallel Aware: false       +
         Relation Name: "pg_class"   +
         Alias: "pg_class"           +
         Startup Cost: 0.00          +
         Total Cost: 16.88           +
         Plan Rows: 388              +
         Plan Width: 1
(1 row)