srowen commented on a change in pull request #33287:
URL: https://github.com/apache/spark/pull/33287#discussion_r667508922
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File path:
common/unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java
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@@ -574,14 +574,14 @@ public UTF8String trim() {
public UTF8String trimAll() {
int s = 0;
// skip all of the whitespaces (<=0x20) in the left side
- while (s < this.numBytes && Character.isWhitespace(getByte(s))) s++;
+ while (s < this.numBytes && getByte(s) <= 0x20) s++;
Review comment:
Looking at https://github.com/apache/spark/pull/29375 , it seems like
the change was at least partly on purpose to catch 'whitespace' that isn't
ASCII 32 or less. @WangGuangxin is this change of behavior necessary? Do we
need to check for `.isWhitespace` _or_ `<= 0x20`?
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