uros-db commented on code in PR #48222:
URL: https://github.com/apache/spark/pull/48222#discussion_r1774931595
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common/unsafe/src/main/java/org/apache/spark/sql/catalyst/util/CollationFactory.java:
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@@ -200,6 +201,7 @@ public Collation(
* bit 28-24: Reserved.
* bit 23-22: Reserved for version.
* bit 21-18: Reserved for space trimming.
+ * 0000 = none, 0001 = left trim, 0010 = right trim, 0011 = trim.
Review Comment:
here's a thought: should we consider having one bit signaling whether there
is any trimming sensitivity or not?
while I would agree that it's not immediately useful, it might come in handy
in the future
thoughts? cc @nikolamand-db @stefankandic
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