如何使用bigsql从db2截断或删除分区？

Question

我在db2中使用了表（使用bigsql），该表在IBM BigInsights上按日期分区

table_name_abc
   20150810
      data corresponding to partition
   20150811
      data corresponding to partition
   ....

我想要的是删除特定分区说20150810或删除该分区中的数据

我试过这个

db2 "truncate table test_schema.table_name_abc where partition_date = 20150810";

但它给出了以下错误

DB21034E  The command was processed as an SQL statement because it was not a
valid Command Line Processor command.  During SQL processing it returned:
SQL0104N  An unexpected token "where" was found following "test_table".
Expected tokens may include:  "".  SQLSTATE=42601

有人可以指示如何做到这一点吗？