twalthr commented on code in PR #28628:
URL: https://github.com/apache/flink/pull/28628#discussion_r3519704223
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flink-table/flink-table-planner/src/test/resources/restore-tests/batch-exec-sort-aggregate_1/sort-aggregate-variance/plan/sort-aggregate-variance.json:
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@@ -0,0 +1,443 @@
+{
+ "flinkVersion" : "2.4",
+ "nodes" : [ {
+ "id" : 1,
+ "type" : "batch-exec-table-source-scan_1",
+ "scanTableSource" : {
+ "table" : {
+ "identifier" : "`default_catalog`.`default_database`.`source_t`",
+ "resolvedTable" : {
+ "schema" : {
+ "columns" : [ {
+ "name" : "a",
+ "dataType" : "INT"
+ }, {
+ "name" : "b",
+ "dataType" : "BIGINT"
+ } ]
+ }
+ }
+ }
+ },
+ "outputType" : "ROW<`a` INT, `b` BIGINT>",
+ "description" : "TableSourceScan(table=[[default_catalog,
default_database, source_t]], fields=[a, b])",
+ "dynamicFilteringDataListenerID" : "f7b00c3e-afdd-4dfc-a6db-479041ae639e"
+ }, {
+ "id" : 2,
+ "type" : "batch-exec-sort_1",
+ "configuration" : {
+ "table.exec.resource.sort.memory" : "128 mb",
+ "table.exec.sort.async-merge-enabled" : "true",
+ "table.exec.sort.max-num-file-handles" : "128",
+ "table.exec.spill-compression.block-size" : "64 kb",
+ "table.exec.spill-compression.enabled" : "true"
+ },
+ "sortSpec" : {
+ "fields" : [ {
+ "index" : 1,
+ "isAscending" : true,
+ "nullIsLast" : false
+ } ]
+ },
+ "inputProperties" : [ {
+ "requiredDistribution" : {
+ "type" : "UNKNOWN"
+ },
+ "damBehavior" : "END_INPUT",
+ "priority" : 0
+ } ],
+ "outputType" : "ROW<`a` INT, `b` BIGINT>",
+ "description" : "Sort(orderBy=[b ASC])"
+ }, {
+ "id" : 9,
+ "type" : "batch-exec-exchange_1",
+ "inputProperties" : [ {
+ "requiredDistribution" : {
+ "type" : "KEEP_INPUT_AS_IS",
+ "inputDistribution" : {
+ "type" : "UNKNOWN"
+ },
+ "isStrict" : true
+ },
+ "damBehavior" : "PIPELINED",
+ "priority" : 0
+ } ],
+ "outputType" : "ROW<`a` INT, `b` BIGINT>",
+ "description" : "Exchange(distribution=[forward])",
+ "requiredExchangeMode" : "UNDEFINED"
+ }, {
+ "id" : 3,
+ "type" : "batch-exec-sort-aggregate_1",
+ "grouping" : [ 1 ],
+ "auxGrouping" : [ ],
+ "aggCalls" : [ {
+ "name" : "cnt",
+ "syntax" : "FUNCTION_STAR",
+ "internalName" : "$COUNT$1",
+ "argList" : [ ],
+ "filterArg" : -1,
+ "distinct" : false,
+ "approximate" : false,
+ "ignoreNulls" : false,
+ "type" : "BIGINT NOT NULL"
+ }, {
+ "name" : null,
+ "internalName" : "$WELFORD_M2$1",
+ "argList" : [ 0 ],
+ "filterArg" : -1,
+ "distinct" : false,
+ "approximate" : false,
+ "ignoreNulls" : false,
+ "type" : "DOUBLE"
+ }, {
+ "name" : null,
+ "syntax" : "FUNCTION_STAR",
+ "internalName" : "$COUNT$1",
+ "argList" : [ 0 ],
+ "filterArg" : -1,
+ "distinct" : false,
+ "approximate" : false,
+ "ignoreNulls" : false,
+ "type" : "BIGINT NOT NULL"
+ } ],
+ "aggInputRowType" : "ROW<`a` INT, `b` BIGINT>",
+ "isMerge" : false,
+ "isFinal" : false,
+ "inputProperties" : [ {
+ "requiredDistribution" : {
+ "type" : "UNKNOWN"
+ },
+ "damBehavior" : "PIPELINED",
+ "priority" : 0
+ } ],
+ "outputType" : "ROW<`b` BIGINT, `count1$0` BIGINT, `$f2`
STRUCTURED<'org.apache.flink.table.runtime.functions.aggregate.WelfordM2AggFunction$WelfordM2Accumulator',
`n` BIGINT NOT NULL, `mean` DOUBLE NOT NULL, `m2` DOUBLE NOT NULL>, `count$1`
BIGINT>",
Review Comment:
@dylanhz just fyi: Using RowData here might be more performant.
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