liyafan82 commented on a change in pull request #8475:
URL: https://github.com/apache/arrow/pull/8475#discussion_r508272146
##########
File path:
java/vector/src/main/java/org/apache/arrow/vector/util/DecimalUtility.java
##########
@@ -119,34 +121,47 @@ public static boolean checkPrecisionAndScale(int
decimalPrecision, int decimalSc
* UnsupportedOperationException if the decimal size is greater than the
Decimal vector byte
* width.
*/
- public static void writeBigDecimalToArrowBuf(BigDecimal value, ArrowBuf
bytebuf, int index) {
+ public static void writeBigDecimalToArrowBuf(BigDecimal value, ArrowBuf
bytebuf, int index, int byteWidth) {
final byte[] bytes = value.unscaledValue().toByteArray();
- writeByteArrayToArrowBufHelper(bytes, bytebuf, index);
+ writeByteArrayToArrowBufHelper(bytes, bytebuf, index, byteWidth);
}
/**
* Write the given long to the ArrowBuf at the given value index.
*/
public static void writeLongToArrowBuf(long value, ArrowBuf bytebuf, int
index) {
- final long addressOfValue = bytebuf.memoryAddress() + (long) index *
DECIMAL_BYTE_LENGTH;
+ final long addressOfValue = bytebuf.memoryAddress() + (long) index * 16;
Review comment:
It would be better to use DecimalVector.BYTE_WIDTH?
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