uros-db commented on code in PR #45421:
URL: https://github.com/apache/spark/pull/45421#discussion_r1518050657
##########
common/unsafe/src/main/java/org/apache/spark/unsafe/types/UTF8String.java:
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@@ -410,7 +414,19 @@ public boolean endsWith(final UTF8String suffix, int
collationId) {
if (collationId == CollationFactory.LOWERCASE_COLLATION_ID) {
return this.toLowerCase().endsWith(suffix.toLowerCase());
}
- return matchAt(suffix, numBytes - suffix.numBytes, collationId);
+ return collatedEndsWith(suffix, collationId);
+ }
+
+ private boolean collatedEndsWith(final UTF8String suffix, int collationId) {
+ if (suffix.numBytes == 0 || this.numBytes == 0) {
+ return suffix.numBytes==0;
+ }
+ if (suffix.numChars() > this.numChars()) {
+ return false;
+ }
+ return CollationFactory.getStringSearch(
+ this.substring(this.numChars()-suffix.numChars(), this.numChars()),
Review Comment:
+1
this might be useful: https://github.com/databricks/scala-style-guide
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