Github user chenghao-intel commented on a diff in the pull request: https://github.com/apache/spark/pull/7115#discussion_r35292197 --- Diff: unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java --- @@ -628,4 +634,93 @@ public int hashCode() { } return result; } + + /** + * Encodes a string into a Soundex value. Soundex is an encoding used to relate similar names, + * but can also be used as a general purpose scheme to find word with similar phonemes. + * https://en.wikipedia.org/wiki/Soundex + */ + public UTF8String soundex() { + if (numBytes == 0) { + return UTF8String.fromBytes(new byte[0]); --- End diff -- Why can't we do thing right in the first place?
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