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https://issues.apache.org/jira/browse/FLINK-9713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16619318#comment-16619318
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ASF GitHub Bot commented on FLINK-9713:
---------------------------------------
pnowojski commented on a change in pull request #6299: [FLINK-9713][table][sql]
Support processing time versioned joins
URL: https://github.com/apache/flink/pull/6299#discussion_r218417820
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/RelTimeIndicatorConverter.scala
##########
@@ -166,9 +172,14 @@ class RelTimeIndicatorConverter(rexBuilder: RexBuilder)
extends RelShuttle {
val right = join.getRight.accept(this)
LogicalJoin.create(left, right, join.getCondition, join.getVariablesSet,
join.getJoinType)
-
}
+ def visit(temporalJoin: LogicalTemporalTableJoin): RelNode = {
+ val left = temporalJoin.getLeft.accept(this)
+ val right = temporalJoin.getRight.accept(this)
+
+ temporalJoin.copy(temporalJoin.getTraitSet, List(left, right))
Review comment:
Why? The implementation looks like it's working and logically the output has
still a valid processing time attribute.
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> Support versioned joins in planning phase
> -----------------------------------------
>
> Key: FLINK-9713
> URL: https://issues.apache.org/jira/browse/FLINK-9713
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Affects Versions: 1.5.0
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available
>
> Queries like:
> {code:java}
> SELECT
> o.amount * r.rate
> FROM
> Orders AS o,
> LATERAL TABLE (Rates(o.rowtime)) AS r
> WHERE o.currency = r.currency{code}
> should evaluate to valid plan with versioned joins plan node.
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