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  1. Spark
  2. SPARK-30374 Feature Parity between PostgreSQL and Spark (ANSI/SQL)
  3. SPARK-30220

Support Filter expression uses IN/EXISTS predicate sub-queries

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.1.0
    • 3.4.0
    • SQL
    • None

    Description

      Spark SQL cannot supports a SQL with nested aggregate as below:

       

      select sum(unique1) FILTER (WHERE
       unique1 IN (SELECT unique1 FROM onek where unique1 < 100)) FROM tenk1;

       

      And Spark will throw exception as follows:

       

      org.apache.spark.sql.AnalysisException
      IN/EXISTS predicate sub-queries can only be used in Filter/Join and a few commands: Aggregate [sum(cast(unique1#x as bigint)) AS sum(unique1)#xL]
      : +- Project [unique1#x]
      : +- Filter (unique1#x < 100)
      : +- SubqueryAlias `onek`
      : +- RelationV2[unique1#x, unique2#x, two#x, four#x, ten#x, twenty#x, hundred#x, thousand#x, twothousand#x, fivethous#x, tenthous#x, odd#x, even#x, stringu1#x, stringu2#x, string4#x] csv file:/home/xitong/code/gengjiaan/spark/sql/core/target/scala-2.12/test-classes/test-data/postgresql/onek.data
      +- SubqueryAlias `tenk1`
       +- RelationV2[unique1#x, unique2#x, two#x, four#x, ten#x, twenty#x, hundred#x, thousand#x, twothousand#x, fivethous#x, tenthous#x, odd#x, even#x, stringu1#x, stringu2#x, string4#x] csv file:/home/xitong/code/gengjiaan/spark/sql/core/target/scala-2.12/test-classes/test-data/postgresql/tenk.data

       

      But PostgreSQL supports this syntax.

      select sum(unique1) FILTER (WHERE
       unique1 IN (SELECT unique1 FROM onek where unique1 < 100)) FROM tenk1;
       sum 
      ------
       4950
      (1 row)

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            tanelk Tanel Kiis
            beliefer jiaan.geng
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              Updated:
              Resolved:

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