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https://issues.apache.org/jira/browse/FLINK-9713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16574436#comment-16574436
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ASF GitHub Bot commented on FLINK-9713:
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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_r208835295
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamJoin.scala
##########
@@ -103,27 +97,42 @@ class DataStreamJoin(
tableEnv: StreamTableEnvironment,
queryConfig: StreamQueryConfig): DataStream[CRow] = {
- val config = tableEnv.getConfig
- val returnType = schema.typeInfo
- val keyPairs = joinInfo.pairs().toList
+ validateKeyTypes()
- // get the equality keys
- val leftKeys = ArrayBuffer.empty[Int]
- val rightKeys = ArrayBuffer.empty[Int]
+ val leftDataStream =
Review comment:
I would be against that. I'm depending on this change in this PR, so it
defines strict order of those two commits. Either I wouldn't publish the actual
versioned joins PR after this commit is merged, or the versioned joins PR would
look exactly the same as it looks now. Splitting into two PRs adds a lot of
overhead and room for a lot of problems with PRs going out of sync. During
reviewing it's also annoying, because you see the same code twice and reviewers
(same or different ones) are often (almost always?) making half of the comments
in one PR and half in the other.
Besides, this is already in a separate commit so it can be reviewed
separately. Maybe instead of reviewing PR all at once try reviewing it commit
by commit?
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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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