Yes we should be able to prune based on range partitions. https://docs.cloudera.com/documentation/enterprise/latest/topics/impala_kudu.html#kudu_partitioning has some examples of how to set up a table with both range and hash partitions. You can specify arbitrary timestamp ranges for the partitions. You can see in the Impala explain plan if your WHERE predicates were converted into kudu pushdown predicates (they're labelled kudu predicates).
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