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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request #4585: [FLINK-7491] [Table API & SQL] add MultiSetTypeInf...
Date Tue, 26 Sep 2017 16:43:47 GMT
Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4585#discussion_r141093104
  
    --- Diff: docs/dev/table/sql.md ---
    @@ -746,6 +746,7 @@ The SQL runtime is built on top of Flink's DataSet and DataStream
APIs. Internal
     | `Types.PRIMITIVE_ARRAY`| `ARRAY`                     | e.g. `int[]`           |
     | `Types.OBJECT_ARRAY`   | `ARRAY`                     | e.g. `java.lang.Byte[]`|
     | `Types.MAP`            | `MAP`                       | `java.util.HashMap`    |
    +| `Types.MULTISET`       | `MULTISET`                  | `java.util.HashMap`    |
    --- End diff --
    
    should we explain how the `HashMap` is used to represent the multiset, i.e., that a multiset
of `String` is a `HashMap<String, Integer>`?


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