miland-db commented on code in PR #45791:
URL: https://github.com/apache/spark/pull/45791#discussion_r1555419316
##########
common/unsafe/src/main/java/org/apache/spark/sql/catalyst/util/CollationFactory.java:
##########
@@ -176,15 +176,31 @@ public Collation(
*/
public static StringSearch getStringSearch(
- final UTF8String left,
- final UTF8String right,
+ final UTF8String targetUTF8String,
+ final UTF8String patternUTF8String,
final int collationId) {
- String pattern = right.toString();
- CharacterIterator target = new StringCharacterIterator(left.toString());
+
+ if (collationId == UTF8_BINARY_COLLATION_ID) {
+ return getStringSearch(targetUTF8String, patternUTF8String);
Review Comment:
Following
[comment1](https://github.com/apache/spark/pull/45791#discussion_r1549312876)
and
[comment2](https://github.com/apache/spark/pull/45791#discussion_r1551446372)
we decided to do this just in case because this is public method and all
collationId values should be handled. We never call this method with
`collationId == 0`.
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