HyukjinKwon commented on a change in pull request #35735:
URL: https://github.com/apache/spark/pull/35735#discussion_r821232236
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -3562,6 +3562,18 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val HISTOGRAM_NUMERIC_PROPAGATE_INPUT_TYPE =
+ buildConf("spark.sql.legacy.histogramNumericPropagateInputType")
+ .internal()
+ .doc("The histogram_numeric function computes a histogram on numeric
'expr' using nb bins. " +
+ "The return value is an array of (x,y) pairs representing the centers
of the histogram's " +
+ "bins. If this config is set to true, the output type of the 'x' field
in the return " +
+ "value is propagated from the input value consumed in the aggregate
function. Otherwise, " +
+ "'x' always has double type.")
+ .version("3.4.0")
+ .booleanConf
+ .createWithDefault(true)
Review comment:
If this gets enabled by default, let's note this in the migration guide.
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