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new 00cee329bd pitfall when using combining input source (#13639)
00cee329bd is described below
commit 00cee329bde326bde8ef2071b1ffc1970c5c328c
Author: Victoria Lim <[email protected]>
AuthorDate: Wed Jan 25 12:50:19 2023 -0800
pitfall when using combining input source (#13639)
---
docs/ingestion/native-batch-input-source.md | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/docs/ingestion/native-batch-input-source.md
b/docs/ingestion/native-batch-input-source.md
index e2c7bd038b..624f8fab19 100644
--- a/docs/ingestion/native-batch-input-source.md
+++ b/docs/ingestion/native-batch-input-source.md
@@ -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|
|--------|-----------|---------|
@@ -797,4 +799,4 @@ Set this value in `maxNumConcurrentSubTasks` in
`tuningConfig` based on the seco
- `range` or `single_dim` partitioning: greater than or equal to 1
- `hashed` or `dynamic` partitioning: greater than or equal to 2
-For more information on the `maxNumConcurrentSubTasks` field, see
[Implementation considerations](native-batch.md#implementation-considerations).
\ No newline at end of file
+For more information on the `maxNumConcurrentSubTasks` field, see
[Implementation considerations](native-batch.md#implementation-considerations).
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