# A prt:        10,000 × 1
# Partitioning: [10,000] rows
           a
       <int>
1          1
2          2
3          3
4          4
5          5
…
9,996   9996
9,997   9997
9,998   9998
9,999   9999
10,000 10000
# … with 9,990 more rows
