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https://issues.apache.org/jira/browse/BEAM-10459?focusedWorklogId=482314&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-482314
]
ASF GitHub Bot logged work on BEAM-10459:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Sep/20 21:55
Start Date: 11/Sep/20 21:55
Worklog Time Spent: 10m
Work Description: amaliujia commented on a change in pull request #12766:
URL: https://github.com/apache/beam/pull/12766#discussion_r487307937
##########
File path:
sdks/java/extensions/sql/zetasql/src/main/java/org/apache/beam/sdk/extensions/sql/zetasql/translation/AggregateScanConverter.java
##########
@@ -227,8 +224,35 @@ private AggregateCall convertAggCall(
ZetaSqlCalciteTranslationUtils.toCalciteType(
computedColumn.getColumn().getType(), nullable,
getCluster().getRexBuilder());
+ SqlAggFunction sqlAggFunction =
+ getSqlAggFunction(aggregateFunctionCall.getFunction().getName(),
returnType);
+
String aggName = getTrait().resolveAlias(computedColumn.getColumn());
return AggregateCall.create(
sqlAggFunction, false, false, false, argList, -1, RelCollations.EMPTY,
returnType, aggName);
}
+
+ private static SqlAggFunction getSqlAggFunction(
+ String zetaSqlAggFunctionName, RelDataType returnType) {
+ // ZetaSQL specific aggregation functions, implemented with a user-defined
CombineFn
+ if (ZETASQL_UDAF_OPERATORS.containsKey(zetaSqlAggFunctionName)) {
+ return ZETASQL_UDAF_OPERATORS.get(zetaSqlAggFunctionName);
+ }
+
+ if ("$count_star".equals(zetaSqlAggFunctionName)) {
+ zetaSqlAggFunctionName = "COUNT"; // $count_star and count both map to
the same implementation
+ } else {
+ // BeamBuiltinAggregations.BUILTIN_AGGREGATOR_FACTORIES uses upper-case
function names
+ zetaSqlAggFunctionName = zetaSqlAggFunctionName.toUpperCase();
+ }
+
+ // Beam builtin aggregation functions (available in both ZetaSQL and
CalciteSQL), implemented in
+ // {@link
org.apache.beam.sdk.extensions.sql.impl.transform.BeamBuiltinAggregations}
+ if
(BeamBuiltinAggregations.BUILTIN_AGGREGATOR_FACTORIES.containsKey(zetaSqlAggFunctionName))
{
Review comment:
Is there a need to use the upper case of `zetaSqlAggFunctionName`?
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Issue Time Tracking
-------------------
Worklog Id: (was: 482314)
Time Spent: 0.5h (was: 20m)
> Support ZetaSQL aggregate functions for NUMERIC type
> ----------------------------------------------------
>
> Key: BEAM-10459
> URL: https://issues.apache.org/jira/browse/BEAM-10459
> Project: Beam
> Issue Type: Bug
> Components: dsl-sql-zetasql
> Reporter: Zijie Song
> Assignee: Robin Qiu
> Priority: P2
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Currently, Sum and Avg are not supported for ZetaSQL NUMERIC type due to type
> mismatch.
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