[jira] [Created] (LENS-771) Multiple chain ref columns having subset chains are not pruned properly

["Amareshwari Sriramadasu (JIRA)" <ji...@apache.org>]

Amareshwari Sriramadasu created LENS-771:
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             Summary: Multiple chain ref columns having subset chains are not pruned properly
                 Key: LENS-771
                 URL: https://issues.apache.org/jira/browse/LENS-771
             Project: Apache Lens
          Issue Type: Bug
          Components: cube
    Affects Versions: 2.3
            Reporter: Amareshwari Sriramadasu
            Assignee: Amareshwari Sriramadasu


While debugging LENS-756, i saw this issue and the fix does not seem straightforward.

The issue is the following :
If reference column have multiple chains and one of the chain is a subset of the other,
For ex :
----
    <dim_attribute name="customer_city_name" type="string" description="City name to which the customer belongs"
                   display_string="Customer City">
      <ref_spec>
        <chain_ref_column chain_name="customer_city" ref_col="name" />
        <chain_ref_column chain_name="customer_details" ref_col="customer_city_name" />
      </ref_spec>
    </dim_attribute>
----




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