twalthr commented on a change in pull request #7177: [FLINK-7599] [table]
Support for aggregates in MATCH_RECOGNIZE
URL: https://github.com/apache/flink/pull/7177#discussion_r238706596
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/AggregateUtil.scala
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@@ -726,13 +727,14 @@ object AggregateUtil {
tableConfig: TableConfig): MapPartitionFunction[Row, Row] = {
val needRetract = false
- val (aggFieldIndexes, aggregates, isDistinctAggs, accTypes, _) =
transformToAggregateFunctions(
+ val aggregateMetadata = extractAggregateMetadata(
namedAggregates.map(_.getKey),
physicalInputRowType,
needRetract,
tableConfig)
- val aggMapping = aggregates.indices.map(_ + groupings.length).toArray
+ val aggMapping = (0 until aggregateMetadata.getAggregateCallsCount).map(_
+ groupings.length)
Review comment:
This occurs quite often (I counted 10 times). Maybe create helper function
in `AggregateMetadata` that takes the grouping length such as
`getAdjustedMapping()`?
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