KurtYoung commented on a change in pull request #11674:
[FLINK-16887][table-planner-blink] Refactor retraction rules to support
inferring ChangelogMode
URL: https://github.com/apache/flink/pull/11674#discussion_r407966473
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File path:
flink-table/flink-table-planner-blink/src/test/resources/org/apache/flink/table/api/stream/ExplainTest.xml
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@@ -45,11 +45,11 @@ LogicalProject(EXPR$0=[$1])
+- LogicalTableScan(table=[[default_catalog, default_database,
MyTable1]])
== Optimized Logical Plan ==
-Calc(select=[EXPR$0], updateAsRetraction=[false], accMode=[Acc]): rowcount = ,
cumulative cost = {rows, cpu, io, network, memory}
-+- GroupAggregate(groupBy=[a], select=[a, COUNT(*) AS EXPR$0],
updateAsRetraction=[false], accMode=[Acc]): rowcount = , cumulative cost =
{rows, cpu, io, network, memory}
- +- Exchange(distribution=[hash[a]], updateAsRetraction=[true],
accMode=[Acc]): rowcount = , cumulative cost = {rows, cpu, io, network, memory}
- +- Calc(select=[a], updateAsRetraction=[true], accMode=[Acc]): rowcount
= , cumulative cost = {rows, cpu, io, network, memory}
- +- DataStreamScan(table=[[default_catalog, default_database,
MyTable1]], fields=[a, b, c], updateAsRetraction=[true], accMode=[Acc]):
rowcount = , cumulative cost = {rows, cpu, io, network, memory}
+Calc(select=[EXPR$0], changelogMode=[I,UA]): rowcount = , cumulative cost =
{rows, cpu, io, network, memory}
Review comment:
why this operator is ignoring update before?
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