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https://issues.apache.org/jira/browse/FLINK-7853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208449#comment-16208449
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ASF GitHub Bot commented on FLINK-7853:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4842#discussion_r145253439
--- Diff: docs/dev/table/tableApi.md ---
@@ -574,6 +574,7 @@ Table result = orders
</td>
<td>
<p>Joins a table with a the results of a table function. Each row
of the left (outer) table is joined with all rows produced by the corresponding
call of the table function. If a table function call returns an empty result,
the corresponding outer row is preserved and the result padded with null values.
+ <p><b>Note:</b> Currently the predicates for table function left
outer join can only be empty or literal <code>true</code>.</p>
--- End diff --
-> `Currently, the predicate of a table function left outer join can only
be empty or literal <code>true</code>.`
> Reject table function outer joins with predicates in Table API
> --------------------------------------------------------------
>
> Key: FLINK-7853
> URL: https://issues.apache.org/jira/browse/FLINK-7853
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Xingcan Cui
> Assignee: Xingcan Cui
> Priority: Blocker
> Fix For: 1.4.0
>
>
> Due to CALCITE-2004, the table function outer joins can not be normally
> executed. We should cover it up by rejecting join predicates temporarily,
> until the issue is fixed in Calcite.
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