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https://issues.apache.org/jira/browse/FLINK-7446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16181172#comment-16181172
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ASF GitHub Bot commented on FLINK-7446:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/4710#discussion_r141124496
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/rules/logical/PushProjectIntoTableSourceScanRule.scala
---
@@ -33,6 +32,9 @@ class PushProjectIntoTableSourceScanRule extends
RelOptRule(
override def matches(call: RelOptRuleCall): Boolean = {
val scan: FlinkLogicalTableSourceScan =
call.rel(1).asInstanceOf[FlinkLogicalTableSourceScan]
scan.tableSource match {
+ // projection pushdown is not supported for sources that provide
time indicators
+ case r: DefinedRowtimeAttribute if r.getRowtimeAttribute != null =>
false
--- End diff --
Yes will do, but it is not easy to solve IMO.
> Support to define an existing field as the rowtime field for TableSource
> ------------------------------------------------------------------------
>
> Key: FLINK-7446
> URL: https://issues.apache.org/jira/browse/FLINK-7446
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Reporter: Jark Wu
> Assignee: Fabian Hueske
>
> Currently {{DefinedRowtimeAttribute}} can define an appended rowtime field
> for a {{TableSource}}. But it would be helpful if we can support to define an
> existing field as the rowtime field. Just like registering a DataStream, the
> rowtime field can be appended but also can replace an existing field.
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