improve Decimal conversion performance using _mantissa (#124)
#65
| Job | Run time |
|---|---|
| 30s | |
| 45s | |
| 46s | |
| 46s | |
| 2m 47s |
_mantissa (#124)
#65
| Job | Run time |
|---|---|
| 30s | |
| 45s | |
| 46s | |
| 46s | |
| 2m 47s |