[GitHub] [carbondata] wxp0329 opened a new issue, #4295: [ SDK PERFORMANCE] The execution of the show tables command takes a long time.

[via GitHub]

wxp0329 opened a new issue, #4295:
URL: https://github.com/apache/carbondata/issues/4295

   
![image](https://user-images.githubusercontent.com/20063116/227820505-42dfe14f-db73-4d4c-9841-85c6a27aa36a.png)
   
   As shown in the above figure, CarbonShowTablesCommand obtains metadata from 
metastore for each table. Currently, when there are 180,000 tables, it takes a 
long time (about 1 hours) to run the show tables command, which needs to be 
optimized.
   When the filter function is not invoked, it takes about 9 seconds to obtain 
180,000 tables by running the show tables command.As shown in the following 
figure.
   
![image](https://user-images.githubusercontent.com/20063116/227821439-12fbdf67-f8b2-4894-85b2-8fe2a58b453f.png)
   


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