Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/13680#discussion_r79614191
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeMapData.java
---
@@ -67,9 +67,9 @@ public UnsafeMapData() {
public void pointTo(Object baseObject, long baseOffset, int sizeInBytes)
{
// Read the numBytes of key array from the first 8 bytes.
final long keyArraySize = Platform.getLong(baseObject, baseOffset);
- final long valueArraySize = sizeInBytes - keyArraySize - 8;
assert keyArraySize >= 0 : "keyArraySize (" + keyArraySize + ") should
>= 0";
assert keyArraySize <= Integer.MAX_VALUE : "keyArraySize (" +
keyArraySize + ") should <= Integer.MAX_VALUE";
+ final long valueArraySize = sizeInBytes - (int)keyArraySize - 8;
--- End diff --
we can declare it as int directly.
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