mqliang commented on a change in pull request #7622:
URL: https://github.com/apache/pinot/pull/7622#discussion_r734883165
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File path: pinot-spi/src/main/java/org/apache/pinot/spi/utils/ByteArray.java
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@@ -94,7 +94,23 @@ public boolean equals(Object o) {
@Override
public int hashCode() {
- return Arrays.hashCode(_bytes);
+ int hash = 1;
+ int i = 0;
+ for (; i + 7 < _bytes.length; i += 8) {
+ hash = -1807454463 * hash
+ + 1742810335 * _bytes[i]
+ + 887503681 * _bytes[i + 1]
+ + 28629151 * _bytes[i + 2]
+ + 923521 * _bytes[i + 3]
+ + 29791 * _bytes[i + 4]
+ + 961 * _bytes[i + 5]
+ + 31 * _bytes[i + 6]
+ + _bytes[i + 7];
+ }
+ for (; i < _bytes.length; i++) {
+ hash = 31 * hash + _bytes[i];
+ }
+ return hash;
Review comment:
never mind, I see your test ensuring the hashcode is the same as old
impl for ByteArray
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