Github user HuJiayin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7115#discussion_r34965616
--- Diff:
unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java ---
@@ -515,4 +521,91 @@ 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]);
+ }
+ String tmp;
+ byte data[] = {'0', '0', '0', '0'};
+ char ch;
+ int idx = 0;
+ int idxp0 = 0;
+ int idxp = 0;
+ int idxpp = 0;
+ int offset = numBytesForFirstByte(getByte(0));
+ if (offset > 1) {
+ return this;
+ }
+ int i = 1;
+ int j = 1;
+ data[0] = getByte(0);
--- End diff --
yes, the check was added.
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