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https://issues.apache.org/jira/browse/FLINK-9713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623198#comment-16623198
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ASF GitHub Bot commented on FLINK-9713:
---------------------------------------
twalthr 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_r219407109
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/calcite/RelTimeIndicatorConverter.scala
##########
@@ -175,13 +173,41 @@ class RelTimeIndicatorConverter(rexBuilder: RexBuilder)
extends RelShuttle {
val rewrittenTemporalJoin = temporalJoin.copy(temporalJoin.getTraitSet,
List(left, right))
- // Materialize all of the time attributes from the right side of temporal
join
- val indicesToMaterialize =
- (left.getRowType.getFieldCount until
rewrittenTemporalJoin.getRowType.getFieldCount).toSet
+ val indicesToMaterialize =
gatherIndicesToMaterialize(rewrittenTemporalJoin, left, right)
materializerUtils.projectAndMaterializeFields(rewrittenTemporalJoin,
indicesToMaterialize)
}
+ private def gatherIndicesToMaterialize(
+ temporalJoin: Join,
+ left: RelNode,
+ right: RelNode)
+ : Set[Int] = {
+
+ // Materialize all of the time attributes from the right side of temporal
join
+ var indicesToMaterialize =
+ (left.getRowType.getFieldCount until
temporalJoin.getRowType.getFieldCount).toSet
+
+ if (!hasRowtimeAttribute(right.getRowType)) {
Review comment:
Did you also add a test for this?
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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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