Github user wzhfy commented on a diff in the pull request:
https://github.com/apache/spark/pull/19438#discussion_r143748535
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/util/QuantileSummariesSuite.scala
---
@@ -58,7 +58,7 @@ class QuantileSummariesSuite extends SparkFunSuite {
if (data.nonEmpty) {
val approx = summary.query(quant).get
// The rank of the approximation.
- val rank = data.count(_ < approx) // has to be <, not <= to be exact
+ val rank = data.count(_ <= approx)
--- End diff --
It queries 50% quantile with relativeError 0.1, then targetError is 0.1*100
= 10, so the expected rank should be in [40, 60].
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
