liuyongvs commented on a change in pull request #9966: [FLINK-14053] [blink-planner] DenseRankAggFunction.accumulateExpressions. it should be thinki… URL: https://github.com/apache/flink/pull/9966#discussion_r337447303
########## File path: flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/functions/aggfunctions/DenseRankAggFunction.java ########## @@ -67,8 +65,8 @@ public DenseRankAggFunction(InternalType[] orderKeyTypes) { @Override public Expression[] accumulateExpressions() { Expression[] accExpressions = new Expression[1 + operands().length]; - // sequence = if (lastValues equalTo orderKeys) sequence else sequence + 1 - accExpressions[0] = ifThenElse(orderKeyEqualsExpression(), sequence, plus(sequence, literal(1L))); + // sequence = if (lastValues equalTo orderKeys and sequence != 0) sequence else sequence + 1 + accExpressions[0] = ifThenElse(and(orderKeyEqualsExpression(), not(equalTo(sequence, literal(0L)))), sequence, plus(sequence, literal(1L))); Review comment: you scan see the unit test i commit. it will be zero rank ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services