How to get columnName as `COUNT(*)` , not `EXPR$0`

[Juan Pan]

Hi everyone,


I executed SQL `select count(*) from tb1` through Calcite and 
resultSet.getMetaData().getColumnName(i) in my project. But the result is 
`EXPR$0` not `COUNT(*)`. 


Is there any way to get real columnName?


Thanks for your attention.


Regard,
Trista




 Juan Pan


panj...@apache.org
Juan Pan(Trista), Apache ShardingSphere