2010YOUY01 opened a new issue, #16041:
URL: https://github.com/apache/datafusion/issues/16041
### Is your feature request related to a problem or challenge?
When running a spilling query, the `explain` will display metrics like
`spilled_bytes`
```sh
# Run datafusion-cli with memory limit
cargo run --profile release-nonlto -- --mem-pool-type fair -m 30M
explain analyze select * from generate_series(1,100000000) as t1(v1) order
by v1;
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| plan_type | plan
|
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Plan with Metrics | SortExec: expr=[v1@0 ASC NULLS LAST],
preserve_partitioning=[false], metrics=[output_rows=100000000,
elapsed_compute=2.962970104s, spill_count=77, spilled_bytes=801171968,
spilled_rows=100000000] |
| | ProjectionExec: expr=[value@0 as v1],
metrics=[output_rows=100000000, elapsed_compute=485.054µs]
|
| | LazyMemoryExec: partitions=1,
batch_generators=[generate_series: start=1, end=100000000, batch_size=8192],
metrics=[]
|
| |
|
+-------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
```
Using human-readable size can make it look nicer: `spilled_bytes=801171968`
-> `spilled_bytes=801.1MB`
https://github.com/apache/datafusion/blob/7a3d020af2a3736db11ba7477efc1a5dae96c2d3/datafusion/execution/src/memory_pool/mod.rs#L425
### Describe the solution you'd like
_No response_
### Describe alternatives you've considered
_No response_
### Additional context
_No response_
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