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[SPARK-24598][DOCS] State in the documentation the behavior when arithmetic operations cause overflow #21967

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[SPARK-24598][DOCS] State in the documentation the behavior when arithmetic operations cause overflow #21967

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7 changes: 7 additions & 0 deletions docs/sql-programming-guide.md
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Expand Up @@ -3072,3 +3072,10 @@ Specifically:
- In aggregations, all NaN values are grouped together.
- NaN is treated as a normal value in join keys.
- NaN values go last when in ascending order, larger than any other numeric value.

## Arithmetic operations

Operations performed on numeric types (with the exception of `decimal`) are not checked for overflow.
This means that in case an operation causes an overflow, the result is the same that the same operation
returns in a Java/Scala program (eg. if the sum of 2 integers is higher than the maximum value representable,
the result is a negative number).