Ted-Jiang commented on issue #3140:
URL:
https://github.com/apache/arrow-datafusion/issues/3140#issuecomment-1214647151
Interesting when create table with the same data in one file the results are
same.
```
pwd
/Users/yangjiang/test-data/tpch-1g-oneFile/orders
yangjiang@LM-SHC-15009782 orders % ll
total 104112
-rw-r--r-- 1 yangjiang 110538165 0B Mar 24 16:13 _SUCCESS
-rw-r--r-- 1 yangjiang 110538165 51M Mar 24 16:13
part-00000-0e58b960-37a0-44c9-8561-53f0c32cf038-c000.snappy.parquet
Running `target/debug/datafusion-cli`
DataFusion CLI v10.0.0
❯ create external table order STORED AS PARQUET LOCATION
'/Users/yangjiang/test-data/tpch-1g-oneFile/orders' ;
0 rows in set. Query took 0.007 seconds.
❯ select o_orderstatus, approx_percentile_cont(o_totalprice, 0.5) from
order group by o_orderstatus order by 1 limit 5 ;
+---------------+-------------------------------------------------------+
| o_orderstatus | APPROXPERCENTILECONT(order.o_totalprice,Float64(0.5)) |
+---------------+-------------------------------------------------------+
| F | 143180.72188702895 |
| O | 143193.2377466576 |
| P | 181378.70468729443 |
+---------------+-------------------------------------------------------+
3 rows in set. Query took 1.190 seconds.
❯ select o_orderstatus, approx_percentile_cont(o_totalprice, 0.5) from
order group by o_orderstatus order by 1 limit 5 ;
+---------------+-------------------------------------------------------+
| o_orderstatus | APPROXPERCENTILECONT(order.o_totalprice,Float64(0.5)) |
+---------------+-------------------------------------------------------+
| F | 143180.72188702895 |
| O | 143193.2377466576 |
| P | 181378.70468729443 |
+---------------+-------------------------------------------------------+
3 rows in set. Query took 1.127 seconds.
❯ select o_orderstatus, approx_percentile_cont(o_totalprice, 0.5) from
order group by o_orderstatus order by 1 limit 5 ;
+---------------+-------------------------------------------------------+
| o_orderstatus | APPROXPERCENTILECONT(order.o_totalprice,Float64(0.5)) |
+---------------+-------------------------------------------------------+
| F | 143180.72188702895 |
| O | 143193.2377466576 |
| P | 181378.70468729443 |
+---------------+-------------------------------------------------------+
3 rows in set. Query took 1.128 seconds.
❯ select o_orderstatus, approx_percentile_cont(o_totalprice, 0.5) from
order group by o_orderstatus order by 1 limit 5 ;
+---------------+-------------------------------------------------------+
| o_orderstatus | APPROXPERCENTILECONT(order.o_totalprice,Float64(0.5)) |
+---------------+-------------------------------------------------------+
| F | 143180.72188702895 |
| O | 143193.2377466576 |
| P | 181378.70468729443 |
+---------------+-------------------------------------------------------+
3 rows in set. Query took 1.123 seconds.
❯
```
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