BinTaoMa opened a new pull request, #11805:
URL: https://github.com/apache/seatunnel/pull/11805
## Purpose
Fixes a ClassCastException thrown when the DataValidator transform's RANGE
rule validates a DECIMAL field against integer bounds.
## Problem
- The field value of a DECIMAL column is read as java.math.BigDecimal.
- RANGE bounds (min_value / max_value) are parsed by
DataValidatorTransformConfig#parseComparable into Integer / Long / Double,
never BigDecimal.
- RangeValidationRule#validate then calls Comparable.compareTo between a
BigDecimal and an Integer, which throws:
java.lang.ClassCastException: class java.lang.Integer cannot be cast to
class java.math.BigDecimal
## Solution
Normalize numeric values and numeric bounds to BigDecimal before comparing in
RangeValidationRule#validate. Non-numeric (String) values keep the existing
Comparable semantics.
## Verification
- Added
DataValidatorTransformTest#rangeRuleShouldAcceptDecimalFieldWithIntegerBounds,
which fails with the ClassCastException before the fix and passes after.
- mvn -pl seatunnel-transforms-v2 -Dtest=DataValidatorTransformTest test
Closes #11804
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