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https://issues.apache.org/jira/browse/FLINK-5767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15881427#comment-15881427
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ASF GitHub Bot commented on FLINK-5767:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3354#discussion_r102826611
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/aggfunctions/MaxAggFunction.scala
---
@@ -109,8 +119,11 @@ class DecimalMaxAggFunction extends
MaxAggFunction[BigDecimal] {
if (value != null) {
val v = value.asInstanceOf[BigDecimal]
val accum = accumulator.asInstanceOf[MaxAccumulator[BigDecimal]]
- if (accum.max == null || accum.max.compareTo(v) < 0) {
- accum.max = v
+ if (!accum.f1 || accum.f0.compareTo(v) < 0) {
+ accum.f0 = v
+ if (!accum.f1) {
--- End diff --
remove condition.
> New aggregate function interface and built-in aggregate functions
> -----------------------------------------------------------------
>
> Key: FLINK-5767
> URL: https://issues.apache.org/jira/browse/FLINK-5767
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Shaoxuan Wang
> Assignee: Shaoxuan Wang
>
> Add a new aggregate function interface. This includes implementing the
> aggregate interface, migrating the existing aggregation functions to this
> interface, and adding the unit tests for these functions.
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