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_r217364622
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/StreamTableEnvironment.scala
##########
@@ -803,70 +803,37 @@ abstract class StreamTableEnvironment(
* @return The optimized [[RelNode]] tree
*/
private[flink] def optimize(relNode: RelNode, updatesAsRetraction: Boolean):
RelNode = {
-
- // 0. convert sub-queries before query decorrelation
- val convSubQueryPlan = runHepPlanner(
- HepMatchOrder.BOTTOM_UP, FlinkRuleSets.TABLE_SUBQUERY_RULES, relNode,
relNode.getTraitSet)
-
- // 0. convert table references
- val fullRelNode = runHepPlanner(
- HepMatchOrder.BOTTOM_UP,
- FlinkRuleSets.TABLE_REF_RULES,
- convSubQueryPlan,
- relNode.getTraitSet)
-
- // 1. decorrelate
+ val convSubQueryPlan = optimizeConvertSubQueries(relNode)
+ val temporalTableJoinPlan = optimizeConvertToTemporalJoin(convSubQueryPlan)
+ val fullRelNode = optimizeConvertTableReferences(temporalTableJoinPlan)
val decorPlan = RelDecorrelator.decorrelateQuery(fullRelNode)
-
- // 2. convert time indicators
val convPlan = RelTimeIndicatorConverter.convert(decorPlan,
getRelBuilder.getRexBuilder)
Review comment:
Give a more meaningful name to this variable.
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