- Plan:
    Node Type: "Aggregate"
    Strategy: "Plain"
    Partial Mode: "Simple"
    Parallel Aware: false
    Startup Cost: 8.51
    Total Cost: 8.52
    Plan Rows: 1
    Plan Width: 8
    Actual Startup Time: 0.040
    Actual Total Time: 0.040
    Actual Rows: 1
    Actual Loops: 1
    Output:
      - "count(*)"
    Plans:
      - Node Type: "Index Only Scan"
        Parent Relationship: "Outer"
        Parallel Aware: false
        Scan Direction: "Forward"
        Index Name: "t_pkey"
        Relation Name: "t"
        Schema: "public"
        Alias: "t"
        Startup Cost: 0.29
        Total Cost: 8.48
        Plan Rows: 10
        Plan Width: 0
        Actual Startup Time: 0.022
        Actual Total Time: 0.029
        Actual Rows: 11
        Actual Loops: 1
        Output:
          - "n"
        Index Cond: "((t.n >= 10) AND (t.n <= 20))"
        Rows Removed by Index Recheck: 0
        Heap Fetches: 11
  Planning Time: 0.481
  Triggers:
  Execution Time: 0.149