data_type in DatabaseMetaData need to be int

[cdmikechen]

Currently databend-jdbc returns string type, such as Int32:

ResultSet rs = conn.getMetaData().getColumns(this.db, this.schema, this.table, "%")

While in fact the type returned by regular databases (such as MySQL) is int, and the data returned depends on java.sql.Types

[hantmac]

Thanks for your report! databend-jdbc return the DatabendRawType as Data_Type now I will try to fix it.