moulimukherjee commented on a change in pull request #283: Add projectStrict
for Dates and Timestamps
URL: https://github.com/apache/incubator-iceberg/pull/283#discussion_r307518808
##########
File path: api/src/main/java/org/apache/iceberg/transforms/ProjectionUtil.java
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@@ -52,6 +52,84 @@ private ProjectionUtil() {}
}
}
+ static <T> UnboundPredicate<T> truncateIntegerStrict(
+ String name, BoundPredicate<Integer> pred, Transform<Integer, T>
transform) {
+ int boundary = pred.literal().value();
+ switch (pred.op()) {
+ case LT:
+ // Checking if the literal is at the lower partition boundary
+ if (transform.apply(boundary - 1).equals(transform.apply(boundary))) {
+ return predicate(Expression.Operation.LT, name,
transform.apply(boundary - 1));
Review comment:
truncateLong is getting used for both Timestamps and Truncate.LONG
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