deniskuzZ commented on code in PR #5624:
URL: https://github.com/apache/hive/pull/5624#discussion_r2159998502
##########
ql/src/java/org/apache/hadoop/hive/ql/udf/UDFSubstr.java:
##########
@@ -172,32 +170,69 @@ public BytesWritable evaluate(BytesWritable bw,
IntWritable pos, IntWritable len
}
private BytesWritable evaluateInternal(BytesWritable bw, int pos, int len) {
-
if (len <= 0) {
return new BytesWritable();
}
- int[] index = makeIndex(pos, len, bw.getLength());
- if (index == null) {
+ byte[] b = Arrays.copyOf(bw.getBytes(), bw.getLength());
Review Comment:
why do we need to create copy of bw?
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