[GitHub] [carbondata] NamanRastogi opened a new pull request #3164: [CARBONDATA-3331] Fix for external table in Show Metacache

[GitBox <gi...@apache.org>]

NamanRastogi opened a new pull request #3164: [CARBONDATA-3331] Fix for external table in Show Metacache
URL: https://github.com/apache/carbondata/pull/3164
 
 
   **Problem**: In `SHOW METACACHE` command when an external table is queries upon, database size is more than ALL size for index column. External table is created upon a store on a table which is also present in current database.
   
   **Bug**: Index size for database was being summed up blindly for all ths tables. So some cache entries were being summed up multiple times.
   
   **Solution**: Compute the database index size while iterating over cache, when cache key contains path of one of the table's path.
   
    - [x] Any interfaces changed?  ->  No
    - [x] Any backward compatibility impacted?  ->  No
    - [x] Document update required  ->  No
    - [x] Testing done  ->  No
    - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA. 
   

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