zhuqi-lucas commented on PR #14766:
URL: https://github.com/apache/datafusion/pull/14766#issuecomment-2667636669
Before this PR, the result is double:
```rust
/usr/bin/time -l cargo run --release -- --mem-pool-type fair -m 5G --maxrows
10 -f '/Users/zhuqi/arrow-datafusion/benchmarks/data/external_sort.sql'
Compiling datafusion-cli v45.0.0
(/Users/zhuqi/arrow-datafusion/datafusion-cli)
Finished `release` profile [optimized] target(s) in 6m 05s
Running `/Users/zhuqi/arrow-datafusion/target/release/datafusion-cli
--mem-pool-type fair -m 5G --maxrows 10 -f
/Users/zhuqi/arrow-datafusion/benchmarks/data/external_sort.sql`
DataFusion CLI v45.0.0
0 row(s) fetched.
Elapsed 0.007 seconds.
+------------+-----------+-----------+--------------+------------+-----------------+------------+-------+------------+--------------+---------------+
| l_orderkey | l_partkey | l_suppkey | l_linenumber | l_quantity |
l_extendedprice | l_discount | l_tax | l_shipdate | l_commitdate |
l_receiptdate |
+------------+-----------+-----------+--------------+------------+-----------------+------------+-------+------------+--------------+---------------+
| 1 | 1551894 | 76910 | 1 | 17.00 | 33078.94
| 0.04 | 0.02 | 1996-03-13 | 1996-02-12 | 1996-03-22 |
| 1 | 673091 | 73092 | 2 | 36.00 | 38306.16
| 0.09 | 0.06 | 1996-04-12 | 1996-02-28 | 1996-04-20 |
| 1 | 636998 | 36999 | 3 | 8.00 | 15479.68
| 0.10 | 0.02 | 1996-01-29 | 1996-03-05 | 1996-01-31 |
| 1 | 21315 | 46316 | 4 | 28.00 | 34616.68
| 0.09 | 0.06 | 1996-04-21 | 1996-03-30 | 1996-05-16 |
| 1 | 240267 | 15274 | 5 | 24.00 | 28974.00
| 0.10 | 0.04 | 1996-03-30 | 1996-03-14 | 1996-04-01 |
| 1 | 156345 | 6348 | 6 | 32.00 | 44842.88
| 0.07 | 0.02 | 1996-01-30 | 1996-02-07 | 1996-02-03 |
| 2 | 1061698 | 11719 | 1 | 38.00 | 63066.32
| 0.00 | 0.05 | 1997-01-28 | 1997-01-14 | 1997-02-02 |
| 3 | 42970 | 17971 | 1 | 45.00 | 86083.65
| 0.06 | 0.00 | 1994-02-02 | 1994-01-04 | 1994-02-23 |
| 3 | 190355 | 65359 | 2 | 49.00 | 70822.15
| 0.10 | 0.00 | 1993-11-09 | 1993-12-20 | 1993-11-24 |
| 3 | 1284483 | 34508 | 3 | 27.00 | 39620.34
| 0.06 | 0.07 | 1994-01-16 | 1993-11-22 | 1994-01-23 |
| .
|
| .
|
| .
|
+------------+-----------+-----------+--------------+------------+-----------------+------------+-------+------------+--------------+---------------+
59986052 row(s) fetched. (First 10 displayed. Use --maxrows to adjust)
Elapsed 5.044 seconds.
375.80 real 13.14 user 8.05 sys
9792942080 maximum resident set size
0 average shared memory size
0 average unshared data size
0 average unshared stack size
2445044 page reclaims
205 page faults
0 swaps
0 block input operations
0 block output operations
0 messages sent
0 messages received
0 signals received
2537 voluntary context switches
99881 involuntary context switches
313190538941 instructions retired
79238532090 cycles elapsed
9802777552 peak memory footprint
```
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