Hi Doris Community, I am trying to use Apache Calcite's algebra builder with Apache Doris, and I have a query related to query compatibility. My goal is to use the algebra builder/RelBuilder( https://calcite.apache.org/docs/algebra.html). Calcite will gather all the necessary column details for creating RelBuilder by calling the getColumns() method in MySQL connector which executes SHOW FULL COLUMNS query eg: "SHOW FULL COLUMNS FROM instant_cdr from cvm". But SHOW FULL COLUMNS isn't supported for the External catalog(throwing error External catalog 'hive' is not allowed in 'ShowColumnStmt'). I want to inquire whether supporting the "SHOW FULL COLUMNS" for the External catalog is possible. Because the query cannot be changed in getColumns method since it is generated by the MySQL connector
Error message : ERROR 1105 (HY000): errCode = 2, detailMessage = External catalog 'hive' is not allowed in 'ShowColumnStmt' Thanks Joice
