Github user xuchuanyin commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2604#discussion_r207265502
--- Diff: docs/datamap/datamap-management.md ---
@@ -51,15 +51,23 @@ If user do want to perform above operations on the main
table, user can first dr
If user drop the main table, the datamap will be dropped immediately too.
+We do recommend you to use this management for index datamap.
+
### Manual Refresh
When user creates a datamap specifying maunal refresh semantic, the
datamap is created with status *disabled* and query will NOT use this datamap
until user can issue REBUILD DATAMAP command to build the datamap. For every
REBUILD DATAMAP command, system will trigger a full rebuild of the datamap.
After rebuild is done, system will change datamap status to *enabled*, so that
it can be used in query rewrite.
-For every new data loading, data update, delete, the related datamap will
be made *disabled*.
+For every new data loading, data update, delete, the related datamap will
be made *disabled*,
+which means that the following queries will not benefit from the datamap
before it becomes *enable* again.
--- End diff --
fixed
---
