[druid] branch master updated: Clarify that Broker caching for groupBy v2 queries does not work (#11370)

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shetland pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new 55a01a0  Clarify that Broker caching for groupBy v2 queries does not work (#11370)
55a01a0 is described below

commit 55a01a030a0d43717c4605990186588659764eeb
Author: frank chen <fr...@outlook.com>
AuthorDate: Wed Aug 4 01:01:15 2021 +0800

    Clarify that Broker caching for groupBy v2 queries does not work (#11370)
    
    * Add a note
    
    * Update docs/configuration/index.md
    
    Co-authored-by: sthetland <st...@imply.io>
    
    * clarify that both of non-result level cache and result level cache are not supported
    
    Co-authored-by: sthetland <st...@imply.io>
---
 docs/configuration/index.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/docs/configuration/index.md b/docs/configuration/index.md
index 89ea6c2..8caaf1c 100644
--- a/docs/configuration/index.md
+++ b/docs/configuration/index.md
@@ -1777,6 +1777,9 @@ You can optionally only configure caching to be enabled on the Broker by setting
 
 See [cache configuration](#cache-configuration) for how to configure cache settings.
 
+> Note: Even if cache is enabled, for [groupBy v2](../querying/groupbyquery.md#strategies) queries, both of non-result level cache and result level cache do not work on Brokers.
+> See [Differences between v1 and v2](../querying/groupbyquery.md#differences-between-v1-and-v2) and [Query caching](../querying/caching.md) for more information.
+
 #### Segment Discovery
 |Property|Possible Values|Description|Default|
 |--------|---------------|-----------|-------|

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