                                                             QUERY PLAN                                                             
------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=594828.30..594828.31 rows=1 width=8) (actual time=2800.210..2800.211 rows=1.00 loops=1)
   Buffers: shared hit=94 read=344734
   I/O Timings: shared read=15.352
   ->  Seq Scan on large_table  (cost=0.00..544828.24 rows=20000024 width=0) (actual time=0.116..1722.549 rows=20000000.00 loops=1)
         Buffers: shared hit=94 read=344734
         I/O Timings: shared read=15.352
 Planning:
   Buffers: shared hit=50
 Planning Time: 0.235 ms
 Execution Time: 2800.312 ms
(10 rows)

                                                             QUERY PLAN                                                             
------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=594828.30..594828.31 rows=1 width=8) (actual time=2807.837..2807.838 rows=1.00 loops=1)
   Buffers: shared hit=188 read=344640
   I/O Timings: shared read=19.452
   ->  Seq Scan on large_table  (cost=0.00..544828.24 rows=20000024 width=0) (actual time=0.158..1747.592 rows=20000000.00 loops=1)
         Buffers: shared hit=188 read=344640
         I/O Timings: shared read=19.452
 Planning:
   Buffers: shared hit=50
 Planning Time: 0.206 ms
 Execution Time: 2807.899 ms
(10 rows)

                                                             QUERY PLAN                                                             
------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=594828.30..594828.31 rows=1 width=8) (actual time=2912.146..2912.147 rows=1.00 loops=1)
   Buffers: shared hit=282 read=344546
   I/O Timings: shared read=18.952
   ->  Seq Scan on large_table  (cost=0.00..544828.24 rows=20000024 width=0) (actual time=0.115..1820.967 rows=20000000.00 loops=1)
         Buffers: shared hit=282 read=344546
         I/O Timings: shared read=18.952
 Planning:
   Buffers: shared hit=50
 Planning Time: 0.203 ms
 Execution Time: 2912.209 ms
(10 rows)

                                                             QUERY PLAN                                                             
------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=594828.30..594828.31 rows=1 width=8) (actual time=2808.031..2808.033 rows=1.00 loops=1)
   Buffers: shared hit=376 read=344452
   I/O Timings: shared read=15.038
   ->  Seq Scan on large_table  (cost=0.00..544828.24 rows=20000024 width=0) (actual time=0.179..1709.161 rows=20000000.00 loops=1)
         Buffers: shared hit=376 read=344452
         I/O Timings: shared read=15.038
 Planning:
   Buffers: shared hit=50
 Planning Time: 0.327 ms
 Execution Time: 2808.125 ms
(10 rows)

                                                             QUERY PLAN                                                             
------------------------------------------------------------------------------------------------------------------------------------
 Aggregate  (cost=594828.30..594828.31 rows=1 width=8) (actual time=2796.937..2796.939 rows=1.00 loops=1)
   Buffers: shared hit=470 read=344358
   I/O Timings: shared read=18.383
   ->  Seq Scan on large_table  (cost=0.00..544828.24 rows=20000024 width=0) (actual time=0.153..1724.357 rows=20000000.00 loops=1)
         Buffers: shared hit=470 read=344358
         I/O Timings: shared read=18.383
 Planning:
   Buffers: shared hit=50
 Planning Time: 0.244 ms
 Execution Time: 2797.010 ms
(10 rows)

