hive：函数：内置函数：round()/floor()/ceil()

hive (default)> select round(2.6);
OK
_c0
3.0
Time taken: 1.331 seconds, Fetched: 1 row(s)
hive (default)> SELECT floor(2.6);
OK
_c0
2
Time taken: 0.094 seconds, Fetched: 1 row(s)
hive (default)> SELECT ceil(2.6);
OK
_c0
3
Time taken: 0.066 seconds, Fetched: 1 row(s)
hive (default)>