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new e1a161bd881 [improve][doc] Clarify the definition of message key
(#15469)
e1a161bd881 is described below
commit e1a161bd881412556c655736936c8cd98596e7fe
Author: momo-jun <[email protected]>
AuthorDate: Sun May 8 09:41:26 2022 +0800
[improve][doc] Clarify the definition of message key (#15469)
---
site2/docs/concepts-messaging.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/site2/docs/concepts-messaging.md b/site2/docs/concepts-messaging.md
index f33af5545f3..a98e5eb3bd2 100644
--- a/site2/docs/concepts-messaging.md
+++ b/site2/docs/concepts-messaging.md
@@ -17,7 +17,7 @@ Messages are the basic "unit" of Pulsar. The following table
lists the component
Component | Description
:---------|:-------
Value / data payload | The data carried by the message. All Pulsar messages
contain raw bytes, although message data can also conform to data
[schemas](schema-get-started.md).
-Key | Messages are optionally tagged with keys, which is useful for things
like [topic compaction](concepts-topic-compaction.md).
+Key | The key (string type) of the message. It is a short name of message key
or partition key. Messages are optionally tagged with keys, which is useful for
features like [topic compaction](concepts-topic-compaction.md).
Properties | An optional key/value map of user-defined properties.
Producer name | The name of the producer who produces the message. If you do
not specify a producer name, the default name is used.
Topic name | The name of the topic that the message is published to.
