leventov commented on issue #7233: Set "is_published" to false for overshadowed 
segments in sys.segments table
URL: 
https://github.com/apache/incubator-druid/issues/7233#issuecomment-476877475
 
 
   Is this right that `sys.segments` table is a *virtual* table that Druid 
processes queries against for the SQL interface to Druid? It doesn't exist in 
the metadata store (or any other *real* SQL database Druid depends on)?
   
   Or not, since this message
   
   > What I meant to say is sys.segments table stores metadata about segments, 
one of the column it has is is_published, which stores the information about 
whether a segment is published in metadata store with used=1 or not. And it 
contains overshadowed segments and their is_published column is set to true, 
which may not be the correct behavior because those overshadowed segments are 
going to be marked used=0 once compaction finishes.
   
   Contains the verb "stores"?

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