[
https://issues.apache.org/jira/browse/BEAM-12100?focusedWorklogId=634667&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-634667
]
ASF GitHub Bot logged work on BEAM-12100:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 05/Aug/21 16:38
Start Date: 05/Aug/21 16:38
Worklog Time Spent: 10m
Work Description: benWize commented on a change in pull request #15174:
URL: https://github.com/apache/beam/pull/15174#discussion_r683616139
##########
File path:
sdks/java/extensions/sql/src/main/java/org/apache/beam/sdk/extensions/sql/impl/rel/BeamAggregationRel.java
##########
@@ -246,6 +250,67 @@ private Transform(
validateWindowIsSupported(windowedStream);
+ PTransform<PCollection<Row>, PCollection<Row>> combiner =
createCombiner();
+
+ boolean verifyRowValues =
+
pinput.getPipeline().getOptions().as(BeamSqlPipelineOptions.class).getVerifyRowValues();
+ return windowedStream
+ .apply(combiner)
+ .apply(
+ "mergeRecord",
+ ParDo.of(mergeRecord(outputSchema, windowFieldIndex,
ignoreValues, verifyRowValues)))
+ .setRowSchema(outputSchema);
+ }
+
+ private PTransform<PCollection<Row>, PCollection<Row>> createCombiner() {
+ // Check if have fields to be grouped
+ if (groupSetCount > 0) {
+ return createGroupCombiner();
+ }
+ return createGlobalCombiner();
+ }
+
+ private PTransform<PCollection<Row>, PCollection<Row>>
createGlobalCombiner() {
+ org.apache.beam.sdk.schemas.transforms.Group.Global<Row> globally =
+ org.apache.beam.sdk.schemas.transforms.Group.globally();
+ org.apache.beam.sdk.schemas.transforms.Group.CombineFieldsGlobally<Row>
combined = null;
+ for (FieldAggregation fieldAggregation : fieldAggregations) {
+ List<Integer> inputs = fieldAggregation.inputs;
+ CombineFn combineFn = fieldAggregation.combineFn;
+ if (inputs.size() > 1 || inputs.isEmpty()) {
+ // In this path we extract a Row (an empty row if inputs.isEmpty).
+ combined =
+ (combined == null)
+ ? globally.aggregateFieldsById(inputs, combineFn,
fieldAggregation.outputField)
+ : combined.aggregateFieldsById(inputs, combineFn,
fieldAggregation.outputField);
+ } else {
+ // Combining over a single field, so extract just that field.
+ combined =
+ (combined == null)
+ ? globally.aggregateField(inputs.get(0), combineFn,
fieldAggregation.outputField)
+ : combined.aggregateField(inputs.get(0), combineFn,
fieldAggregation.outputField);
+ }
+ }
+
+ PTransform<PCollection<Row>, PCollection<Row>> combiner = combined;
+ if (combiner == null) {
+ // If no field aggregations were specified, we run a constant combiner
that always returns
+ // a single empty row for each key. This is used by the SELECT
DISTINCT query plan - in this
+ // case a group by is generated to determine unique keys, and a
constant null combiner is
+ // used.
+ combiner =
+ globally.aggregateField(
+ "*",
+ AggregationCombineFnAdapter.createConstantCombineFn(),
+ Field.of(
+ "e",
+
FieldType.row(AggregationCombineFnAdapter.EMPTY_SCHEMA).withNullable(true)));
+ ignoreValues = true;
+ }
+ return combiner;
+ }
Review comment:
I created `LongSum` to handle ArithmeticExceptions like Sumoverflow and
Sumunderflow, without modifying the original Sum.ofLongs.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
Issue Time Tracking
-------------------
Worklog Id: (was: 634667)
Time Spent: 2h 20m (was: 2h 10m)
> SUM should error when overflow/underflow occurs.
> ------------------------------------------------
>
> Key: BEAM-12100
> URL: https://issues.apache.org/jira/browse/BEAM-12100
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql-zetasql
> Reporter: Kyle Weaver
> Assignee: Benjamin Gonzalez
> Priority: P3
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> SELECT SUM(col1) FROM (SELECT CAST(9223372036854775807 as int64) as col1
> UNION ALL SELECT CAST(1 as int64))
> should return an error.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
