Display View Columns and Their Source Tables and Columns

I'm so close but I can't quite figure out how to match view columns to 
their source columns in a query.  Looks like I might need yet another 
table to join that makes that match, but I'm not having any success 
finding such a bridge.  Matching views to their source tables works well 
enough.  What am I missing?  Is there a better approach?

I would welcome any comments or leads that you have.

Thanks for your help!

Sue

Here is what I have so far:

select vcu.view_name     view_name
       ,c.column_name     view_column
       ,vcu.table_schema  source_schema
       ,vcu.table_name    source_table
       ,vcu.column_name   source_column
       ,c.is_updatable    is_updatable
   from information_schema.view_column_usage  vcu
       ,information_schema.columns c
  where vcu.view_schema = 'devops'
    and vcu.table_schema in ('devops','chief','store')
    and vcu.view_schema = c.table_schema
    and vcu.view_name = c.table_name
    and    ************************ Help! *****************
  order by vcu.view_name
          ,vcu.table_name
          ,c.column_name
;


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Susan E Hurst
Principal Consultant
Brookhurst Data LLC
Email: susan.hurst@brookhurstdata.com
Mobile: 314-486-3261