L. C. Hsieh created SPARK-60205:
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Summary: Decimal.set(unscaled, precision, scale) reports the
previous value instead of the rejected one on overflow
Key: SPARK-60205
URL: https://issues.apache.org/jira/browse/SPARK-60205
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 5.0.0
Reporter: L. C. Hsieh
`Decimal.set(unscaled: Long, precision: Int, scale: Int)` throws
`unscaledValueTooLargeForPrecisionError(this, precision, scale)` after
`setOrNull` returns null. `setOrNull` returns before writing any field, so
`this` still holds its previous value, which is 0 for a new `Decimal`. For
example, `Decimal(123456L, 3, 0)` throws "0 cannot be represented as Decimal(3,
0)". Callers include `MakeDecimal` under ANSI and
`AvroDeserializer.createDecimal`. The error should build the value from
`unscaled` and `scale`.
Found in the review of SPARK-60119.
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