- Plan: 
    Node Type: "Aggregate"
    Strategy: "Plain"
    Partial Mode: "Finalize"
    Parallel Aware: false
    Startup Cost: 18614.22
    Total Cost: 18614.23
    Plan Rows: 1
    Plan Width: 8
    Actual Startup Time: 68.623
    Actual Total Time: 68.623
    Actual Rows: 1
    Actual Loops: 1
    Plans: 
      - Node Type: "Gather"
        Parent Relationship: "Outer"
        Parallel Aware: false
        Startup Cost: 18614.00
        Total Cost: 18614.21
        Plan Rows: 2
        Plan Width: 8
        Actual Startup Time: 68.537
        Actual Total Time: 70.077
        Actual Rows: 3
        Actual Loops: 1
        Workers Planned: 2
        Workers Launched: 2
        Single Copy: false
        Plans: 
          - Node Type: "Aggregate"
            Strategy: "Plain"
            Partial Mode: "Partial"
            Parent Relationship: "Outer"
            Parallel Aware: false
            Startup Cost: 17614.00
            Total Cost: 17614.01
            Plan Rows: 1
            Plan Width: 8
            Actual Startup Time: 67.395
            Actual Total Time: 67.395
            Actual Rows: 1
            Actual Loops: 3
            Plans: 
              - Node Type: "Seq Scan"
                Parent Relationship: "Outer"
                Parallel Aware: true
                Relation Name: "z"
                Alias: "z"
                Startup Cost: 0.00
                Total Cost: 15530.67
                Plan Rows: 416667
                Plan Width: 55
                Actual Startup Time: 0.010
                Actual Total Time: 20.683
                Actual Rows: 333333
                Actual Loops: 3
  Planning Time: 0.108
  Triggers: 
  Execution Time: 70.126