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Posted to commits@druid.apache.org by "clintropolis (via GitHub)" <gi...@apache.org> on 2026/05/23 03:31:05 UTC
[PR] feat: ingest support for numeric typed ExpressionLambdaAggregatorFactory (druid)
clintropolis opened a new pull request, #19508:
URL: https://github.com/apache/druid/pull/19508
### Description
This PR adds an `AggregateCombiner` implementation for `ExpressionLambdaAggregatorFactory`, allowing it to be used at ingestion time for the two primitive numeric types (`LONG` and `DOUBLE`) when both fold and combine expressions are the same type (by examining `initialValue`/`initialCombineValue`). Other types (strings, arrays, complex types) continue to fall through to the base `UOE`, supporting those is more complicated and is left for a follow-up.
#### Release note
The expression aggregator can now be used at ingestion time for expressions which produce a `LONG` or `DOUBLE` for both `fold` and `combine` expressions.
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Re: [PR] feat: ingest support for numeric typed ExpressionLambdaAggregatorFactory (druid)
Posted by "gianm (via GitHub)" <gi...@apache.org>.
gianm merged PR #19508:
URL: https://github.com/apache/druid/pull/19508
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