Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/19783#discussion_r155231264
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/statsEstimation/EstimationUtils.scala
---
@@ -114,4 +114,171 @@ object EstimationUtils {
}
}
+ /**
+ * Returns the number of the first bin into which a column values falls
for a specified
+ * numeric equi-height histogram.
+ *
+ * @param value a literal value of a column
+ * @param bins an array of bins for a given numeric equi-height histogram
+ * @return the number of the first bin into which a column values falls.
--- End diff --
nit: `the id of the first bin into which the given value falls.`
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