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pitfall when using combining input source (#13639)

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Victoria Lim 2023-01-25 12:50:19 -08:00 committed by GitHub
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docs/ingestion/native-batch-input-source.md
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@ -756,6 +756,8 @@ Use the Combining input source only if all the delegates are splittable and can
Similar to other input sources, the Combining input source supports a single `inputFormat`.
Delegate input sources that require an `inputFormat` must have the same format for input data.
If you include the [Druid input source](#druid-input-source), the timestamp column is stored in the `__time` field.
To correctly combine the data from the Druid input source with another source, ensure that other delegate input sources also store the timestamp column in `__time`.
|Property|Description|Required|
|--------|-----------|---------|