character set support && hive 1.1.0(or 1.2.0) support

[王贤良]

hello:
    for a hive table, the query is:
    select * from dim_province where province_name ='北京';
    SYSTEM ERROR: org.apache.calcite.runtime.CalciteException: Failed to encode 
'北京' in character set 'ISO-8859-1'
    how to set utf-8?
 
    for hive 1.1.0( or 1.2.0), a pqrauet table ,the column's type is varchar( 
or timestamp), the error is :
    SYSTEM ERROR: java.lang.UnsupportedOperationException: Parquet does not 
support varchar. See HIVE-6384
    how to support?

Thanks