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  1. Apache Drill
  2. DRILL-1741

kvgen does not work with nested map/unions

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.7.0
    • Fix Version/s: 0.7.0
    • Component/s: Functions - Drill
    • Labels:
      None

      Description

      Tested on latest 0.7.0.

      kvgen function does not work well with nested maps/unions.

      1. This works fine:

      $ cat test_work.json
      {
        "data" : {
          "col1" :  "aaa"
        }
      }
      
       
      0: jdbc:drill:zk=local> select kvgen(tab.data) from `test_work.json` tab;
      +------------+
      |   EXPR$0   |
      +------------+
      | [{"key":"col1","value":"aaa"}] |
      +------------+
      1 row selected (0.034 seconds)
      

      2. This failed:

      $ cat test7.json
      {
        "data" : {
          "col1" : {
            "one" : "aaa" 
          }
        }
      }
      
      
      0: jdbc:drill:zk=local> select kvgen(tab.data) from `test7.json` tab;
      +------------+
      |   EXPR$0   |
      +------------+
      Query failed: Failure while running fragment., Mappify does not support input of type: MAP [ d2bfea52-9935-4d63-8ecc-52315a3c7c7b on 10.250.0.115:31010 ]
      
      
      java.lang.RuntimeException: java.sql.SQLException: Failure while executing query.
      	at sqlline.SqlLine$IncrementalRows.hasNext(SqlLine.java:2514)
      	at sqlline.SqlLine$TableOutputFormat.print(SqlLine.java:2148)
      	at sqlline.SqlLine.print(SqlLine.java:1809)
      	at sqlline.SqlLine$Commands.execute(SqlLine.java:3766)
      	at sqlline.SqlLine$Commands.sql(SqlLine.java:3663)
      	at sqlline.SqlLine.dispatch(SqlLine.java:889)
      	at sqlline.SqlLine.begin(SqlLine.java:763)
      	at sqlline.SqlLine.start(SqlLine.java:498)
      	at sqlline.SqlLine.main(SqlLine.java:460)
      
      

        Attachments

        1. DRILL-1741.patch
          21 kB
          Mehant Baid

          Activity

            People

            • Assignee:
              cchang@maprtech.com Chun Chang
              Reporter:
              haozhu Hao Zhu
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              Dates

              • Created:
                Updated:
                Resolved: