column "tgconstraint" doest not exist

Hi,

I am using gpAdmin III 1.160. 0 on Windows, when I click a table node
inside the object tree-view, an error occured,

An error has occurred:

ERROR: column "tgconstraint" does not exist
LINE 9: WHERE tgconstraint=0.

I am connecting to 4.2.2.4 Greenplum database server.

Regards,

Xiaobo Gu