Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/6762#discussion_r33738817
--- Diff:
unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java ---
@@ -159,6 +162,77 @@ public UTF8String toLowerCase() {
return UTF8String.fromString(toString().toLowerCase());
}
+ public UTF8String trim() {
+ return UTF8String.fromString(toString().trim());
+ }
+
+ public UTF8String trimLeft() {
+ return UTF8String.fromString(StringUtils.stripStart(toString(), " "));
+ }
+
+ public UTF8String trimRight() {
+ return UTF8String.fromString(StringUtils.stripEnd(toString(), " "));
+ }
+
+ public UTF8String reverse() {
+ return UTF8String.fromString(StringUtils.reverse(toString()));
+ }
+
+ /**
+ * Returns the position of the first occurrence of substr in
+ * current string from the specified position (0-based index).
+ *
+ * @param v the string to be searched
+ * @param start the start position of the current string for searching
+ * @return the position of the first occurrence of substr, if not found,
-1 returned.
+ */
+ public int instr(UTF8String v, int start) {
--- End diff --
Yeah, that's a good idea. Acutally I copied from Hive 0.13.1, which to
avoid the encoding and decoding. After revisiting the code with the latest
Hive, seems it changed as you described. I will update it.
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