totalo edited a comment on issue #14807:
URL: 
https://github.com/apache/shardingsphere/issues/14807#issuecomment-1013893578


   > > Yes. I think it might be possible to make an optional? If I configure 
too many rules, I just want to check one of my rule configuration.
   > 
   > It can be considered, but the syntax and keywords will not be easy to 
define. (configuration includes resources and rules).
   
   How about `EXPORT SCHEMA typeOption? CONIFG`, we can use 
`ctx.typeOption.getText()` to get the type.
   ```
   typeOption
         : SHARDING | READWRITE_SPLITTING
         ;
   ```


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