mmooyyii commented on issue #16406:
URL: https://github.com/apache/datafusion/issues/16406#issuecomment-2974920966
```
use bigdecimal::num_bigint::BigInt;
use bigdecimal::{BigDecimal};
use std::fs;
fn main() {
let f = fs::read_to_string("/tmp/decimal.csv").unwrap();
let mut acc = BigDecimal::new(BigInt::from(0), 20);
for line in f.split("\r\n") {
if line.is_empty() {
continue;
}
let x = line.split(",").collect::<Vec<&str>>();
let d1 = x[0].parse::<BigDecimal>().unwrap().with_scale(10);
let d2 = x[1].parse::<BigDecimal>().unwrap().with_scale(10);
acc += d1 * d2;
}
print!("{}\n", acc); // 3318680488765741748.46645774090000000000
}
```
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