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Diffstat (limited to 'docs/processor/aggregate-processor.md')
| -rw-r--r-- | docs/processor/aggregate-processor.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/processor/aggregate-processor.md b/docs/processor/aggregate-processor.md index d9bcdb0..af82d4e 100644 --- a/docs/processor/aggregate-processor.md +++ b/docs/processor/aggregate-processor.md @@ -1,11 +1,11 @@ # Aggregate Processor -> Processing pipelines for aggregate processor +> Processing pipelines for aggregate processors using UDAFs ## Description Aggregate processor is used to aggregate the data from source to sink. It is a part of the processing pipeline. It can be used in the pre-processing, processing, and post-processing pipeline. Each processor can assemble UDAFs(User-defined Aggregate functions) into a pipeline. -Within the pipeline, events are processed by each Function in order, top‑>down. The UDAF usage detail can be found in [UDAF](udaf.md). +Within the pipeline, events are processed by each Function in order, top‑>down. More details can be found in user-defined aggregate functions [(UDAFs)](udaf.md). ## Options Note：Default will output internal fields `__window_start_timestamp` and `__window_end_timestamp` if not set output_fields. |