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https://issues.apache.org/jira/browse/FLINK-5256?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15825594#comment-15825594
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ASF GitHub Bot commented on FLINK-5256:
---------------------------------------
Github user ex00 commented on a diff in the pull request:
https://github.com/apache/flink/pull/3033#discussion_r96356761
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/api/scala/batch/sql/JoinITCase.scala
---
@@ -372,9 +372,163 @@ class JoinITCase(
val table =
CollectionDataSets.getSmall3TupleDataSet(env).toTable(tEnv).as('a1, 'a2, 'a3)
tEnv.registerTable("A", table)
- val sqlQuery1 = "SELECT * FROM A CROSS JOIN (SELECT count(*) FROM A
HAVING count(*) < 0)"
- val result = tEnv.sql(sqlQuery1).count()
+ val sqlQuery1 = "SELECT * FROM A CROSS JOIN " +
+ "(SELECT count(*) FROM A HAVING count(*) < 0)"
+ val result = tEnv.sql(sqlQuery1)
+ val expected =Seq(
+ "2,2,Hello,null",
+ "1,1,Hi,null",
+ "3,2,Hello world,null").mkString("\n")
--- End diff --
this test was change bacause now we join with null record. look
[testSingleRowLeftOuterJoinWithNullRecords](https://github.com/apache/flink/pull/3033/files#diff-102e5d9e330260c0acf5e4e54ff3bdceR478)
> Extend DataSetSingleRowJoin to support Left and Right joins
> -----------------------------------------------------------
>
> Key: FLINK-5256
> URL: https://issues.apache.org/jira/browse/FLINK-5256
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Affects Versions: 1.2.0
> Reporter: Fabian Hueske
> Assignee: Anton Mushin
>
> The {{DataSetSingleRowJoin}} is a broadcast-map join that supports arbitrary
> inner joins where one input is a single row.
> I found that Calcite translates certain subqueries into non-equi left and
> right joins with single input. These cases can be handled if the
> {{DataSetSingleRowJoin}} is extended to support outer joins on the
> non-single-row input, i.e., left joins if the right side is single input and
> vice versa.
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