wangbo commented on a change in pull request #2781: Batch Operate Rollup table
in Doris #2671
URL: https://github.com/apache/incubator-doris/pull/2781#discussion_r368224195
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File path: fe/src/main/java/org/apache/doris/alter/MaterializedViewHandler.java
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@@ -858,4 +1160,57 @@ public void cancel(CancelStmt stmt) throws DdlException {
jobDone(rollupJob);
}
}
+
+ // There may be dependency relation between user batch input rollup index
+ // e.g, user input rollup index: r1 from r2,r2 from r3 ;the input order
must be r3,r2,r1
+ // sort rollup index for two reasons:
+ // 1. successfully create rollup index
Review comment:
Actually, rollup index can't be created in catalog before its parent rollup
created,so does rollup job runs;so we must first sort rollup index,then create
index work and run rollup job;
I'll change the comment for better understand
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