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ASF GitHub Bot commented on FLINK-5881: --------------------------------------- Github user KurtYoung commented on a diff in the pull request: https://github.com/apache/flink/pull/3389#discussion_r104595467 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/ScalarSqlFunction.scala --- @@ -136,8 +143,18 @@ object ScalarSqlFunction { } override def getOperandCountRange: SqlOperandCountRange = { - val signatureLengths = signatures.map(_.length) - SqlOperandCountRanges.between(signatureLengths.min, signatureLengths.max) + var min = 255 + var max = -1 + signatures.foreach(sig => { + var len = sig.length + if (len > 0 && sig(sig.length -1).isArray) { --- End diff -- please add space before 1 > ScalarFunction(UDF) should support variable types and variable arguments > ------------------------------------------------------------------------- > > Key: FLINK-5881 > URL: https://issues.apache.org/jira/browse/FLINK-5881 > Project: Flink > Issue Type: Sub-task > Reporter: Zhuoluo Yang > Assignee: Zhuoluo Yang > > As a sub-task of FLINK-5826. We would like to support the ScalarFunction > first and make the review a little bit easier. -- This message was sent by Atlassian JIRA (v6.3.15#6346)