[jira] [Created] (HIVE-26274) No vectorization if query has upper case window function

["Krisztian Kasa (Jira)" <ji...@apache.org>]

Krisztian Kasa created HIVE-26274:
-------------------------------------

             Summary: No vectorization if query has upper case window function
                 Key: HIVE-26274
                 URL: https://issues.apache.org/jira/browse/HIVE-26274
             Project: Hive
          Issue Type: Bug
            Reporter: Krisztian Kasa
            Assignee: Krisztian Kasa


{code}
CREATE TABLE t1 (a int, b int);

EXPLAIN VECTORIZATION ONLY SELECT ROW_NUMBER() OVER(order by a) AS rn FROM t1;
{code}
{code}
PLAN VECTORIZATION:
  enabled: true
  enabledConditionsMet: [hive.vectorized.execution.enabled IS true]

STAGE DEPENDENCIES:
  Stage-1 is a root stage
  Stage-0 depends on stages: Stage-1

STAGE PLANS:
  Stage: Stage-1
    Tez
      Edges:
        Reducer 2 <- Map 1 (SIMPLE_EDGE)
      Vertices:
        Map 1 
            Execution mode: vectorized, llap
            LLAP IO: all inputs
            Map Vectorization:
                enabled: true
                enabledConditionsMet: hive.vectorized.use.vector.serde.deserialize IS true
                inputFormatFeatureSupport: [DECIMAL_64]
                featureSupportInUse: [DECIMAL_64]
                inputFileFormats: org.apache.hadoop.mapred.TextInputFormat
                allNative: true
                usesVectorUDFAdaptor: false
                vectorized: true
        Reducer 2 
            Execution mode: llap
            Reduce Vectorization:
                enabled: true
                enableConditionsMet: hive.vectorized.execution.reduce.enabled IS true, hive.execution.engine tez IN [tez] IS true
                notVectorizedReason: PTF operator: ROW_NUMBER not in supported functions [avg, count, dense_rank, first_value, lag, last_value, lead, max, min, rank, row_number, sum]
                vectorized: false

  Stage: Stage-0
    Fetch Operator
{code}
{code}
                notVectorizedReason: PTF operator: ROW_NUMBER not in supported functions [avg, count, dense_rank, first_value, lag, last_value, lead, max, min, rank, row_number, sum]
{code}



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