Liya Fan created ARROW-8009: ------------------------------- Summary: [Java] Fix the hash code mehods for BitVector Key: ARROW-8009 URL: https://issues.apache.org/jira/browse/ARROW-8009 Project: Apache Arrow Issue Type: Bug Components: Java Reporter: Liya Fan Assignee: Liya Fan
The current hash code methods of BitVector are based on implementations in BaseFixedWidthVector, which rely on the type width of the vector. For BitVector, the type width is 0, so the underlying data is not actually used when computing the hash code. That means, the hash code will always be 0, no matter if the underlying data is null or not, and no matter if the underlying bit is 0 or 1. We fix this by overriding the methods in BitVector. -- This message was sent by Atlassian Jira (v8.3.4#803005)