twalthr commented on a change in pull request #6981: [FLINK-10638][table]
Invalid table scan resolution for temporal join queries
URL: https://github.com/apache/flink/pull/6981#discussion_r230038751
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File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/rules/FlinkRuleSets.scala
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@@ -39,18 +39,14 @@ object FlinkRuleSets {
SubQueryRemoveRule.JOIN)
/**
- * Handles proper conversion of correlate queries with temporal table
functions
- * into temporal table joins. This can create new table scans in the plan.
+ * Expand plan by replacing references to tables into a proper plan sub
trees. Those rules
+ * can create new plan nodes.
*/
- val TEMPORAL_JOIN_RULES: RuleSet = RuleSets.ofList(
- LogicalCorrelateToTemporalTableJoinRule.INSTANCE
- )
+ val EXPAND_PLAN_RULES: RuleSet = RuleSets.ofList(
Review comment:
We should make the rules in expand and post expand phase configurable
through `org.apache.flink.table.calcite.CalciteConfigBuilder` we also forgot
this for the temporal join phase. We might have users that don't want to use
temporal joins and modify the rule sets accordingly.
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