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https://issues.apache.org/jira/browse/FLINK-7491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181099#comment-16181099
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ASF GitHub Bot commented on FLINK-7491:
---------------------------------------
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>`?
> Support COLLECT Aggregate function in Flink SQL
> -----------------------------------------------
>
> Key: FLINK-7491
> URL: https://issues.apache.org/jira/browse/FLINK-7491
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: Shuyi Chen
> Assignee: Shuyi Chen
>
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