Github user kevinyu98 commented on a diff in the pull request:
https://github.com/apache/spark/pull/12646#discussion_r119173124
--- Diff:
common/unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java ---
@@ -535,6 +577,48 @@ public UTF8String trimRight() {
}
}
+ /**
+ * Removes the given trim string from the ending of a string
+ * This method searches each character in the source string starting
from the right end, removes the character if it
+ * is in the trim string, stops at the first character which is not in
the trim string, returns the new string.
+ * @param trimString the trim character string
+ */
+ public UTF8String trimRight(UTF8String trimString) {
+ // index trimEnd points to first no matching byte position in the
input string from right side,
+ // it moves the number of bytes of the trimming character.
+ int trimEnd;
+ int trimIdx = 0;
+ int numChars = 0; // number of characters from the input string
+ int[] stringCharLen = new int[numBytes]; // array of character length
for the input string
+ int[] stringCharPos = new int[numBytes]; // array of the first byte
position for each character in the input string
+ //build the position and length array
--- End diff --
changed
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