LOB index creation/

I have a create table statement that has one column of type SYS.XMLTYPE.

I logged in as SYS and created this table as BOB.logtable. Table created fine but I noticed that a LOB index had been created at the same time.

I dropped the table and then logged in as Bob. I ran the same create table script. No LOB index created.

Is this expected action? How would user Bob put the LOB index on there.....and is it needed?

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