chunweilei commented on a change in pull request #2089:
URL: https://github.com/apache/calcite/pull/2089#discussion_r463444189
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File path: core/src/main/java/org/apache/calcite/sql/type/SqlTypeUtil.java
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@@ -1751,4 +1752,18 @@ public static RelDataType
extractLastNFields(RelDataTypeFactory typeFactory,
return typeFactory.createStructType(
type.getFieldList().subList(fieldsCnt - numToKeep, fieldsCnt));
}
+
+ public static boolean isValidDecimalValue(BigDecimal value, RelDataType
toType) {
+ if (value == null) {
+ return true;
+ }
+ switch (toType.getSqlTypeName()) {
+ case DECIMAL:
+ final int intDigits = value.precision() - value.scale();
+ final int maxIntDigits = toType.getPrecision() - toType.getScale();
+ return intDigits <= maxIntDigits;
Review comment:
Do you want to throw an exception if toType is not decimal by saying
"add a check here"?
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