What are the actions of the moveout task? (Select two.)
A.
Moveout consolidates containers already on disk.
B.
Moveout places data into all defined projections on the source table.
C.
Moveout rewrites all ROS containers.
D.
Moveout moves data from memory to disk.
E.
Moveout writes data to memory.
F.
Moveout purges deleted data already on disk.
Explanation:
https://my.vertica.com/docs/6.1.x/HTML/index.htm#2624.htm#o14825
Don’t think C is correct. None of TP operations rewrites ALL containers, especially moveout. The only another candidate is B, but it is not key purpose of moveout.I can consider it just based on fact moveout is moving data from WOS to ROS and all data in ROS is arranged by projections.
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I agree with you , C is not correct. Because , as I know ROS containers is WRITE-ONCE. WRITE-ONCE means if the data loads to ROS ,ros container is created and data is written to container. After written to container , there will be no changes in container. If another load comes , new container is created and data is written to new container. Only mergeout process affects containers after container is created
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