yadavay-amzn commented on code in PR #56941:
URL: https://github.com/apache/spark/pull/56941#discussion_r3576152020
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sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/statsEstimation/FilterEstimationSuite.scala:
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@@ -1020,4 +1032,87 @@ class FilterEstimationSuite extends
StatsEstimationTestBase {
}
}
+ // Tests for nanosecond-precision timestamp types (SPARK-57839)
Review Comment:
Agreed - the current nanos cases all sit in the exact-double range. I'll add
a 2024-era range/IN case (epochMicros ~1.7e15, distinct nanosWithinMicro) to
exercise the lossy toDouble path, a within-one-ULP partial-overlap case
asserting max > min, and a pre-1970 fromDouble round-trip.
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