[jira] [Created] (FLINK-14053) blink planner dense_rank corner case bug

[Shang Yuanchun (Jira)]

jackylau created FLINK-14053:
--------------------------------

             Summary: blink planner dense_rank corner case bug
                 Key: FLINK-14053
                 URL: https://issues.apache.org/jira/browse/FLINK-14053
             Project: Flink
          Issue Type: Bug
          Components: Table SQL / Planner
    Affects Versions: 1.9.0
            Reporter: jackylau
             Fix For: 1.10.0


sql :

val rank =
 """
 |SELECT
 | gradeId,
 | classId,
 | stuId,
 | score,
 | dense_rank() OVER (PARTITION BY gradeId, classId ORDER BY score asc) as dense_rank_num
 |FROM student
 |
 """.stripMargin

sample date:

row("grade2", "class2", "0006", 90),
row("grade1", "class2", "0007", 90),
row("grade1", "class1", "0001", 95),
row("grade1", "class1", "0002", 94),
row("grade1", "class1", "0003", 97),
row("grade1", "class1", "0004", 95),
row("grade1", "class1", "0005", 0)

the dense_rank ranks from 0, but it should be from 1

 



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