hive剔除不可见字符
regexp_replace("内容",'<[><]*>|&|nbsp|rdquo|&|"|\n|\r|[\000-\037]','')
内部表转外部表
alter table tableName set TBLPROPERTIES ('EXTERNAL'='TRUE');
外部表转内部表
alter table tableName set TBLPROPERTIES ('EXTERNAL'='FALSE');
regexp_replace("内容",'<[><]*>|&|nbsp|rdquo|&|"|\n|\r|[\000-\037]','')
alter table tableName set TBLPROPERTIES ('EXTERNAL'='TRUE');
alter table tableName set TBLPROPERTIES ('EXTERNAL'='FALSE');