为什么使用st_geometry进行空间查询时报ora-28579错误？

执行空间SQL语句 select NAME, ADDCODE, TEL, SIPNAME, ADDNAME, loc as geometry<br /> from SHAREGISDATADB.Address t<br />where sde.st_intersects(t.shape,<br /> sde.st_buffer(sde.st_geometry(''POLYGON((107.01756825700005 33.077045438000027,107.01316943400008 33.077045438000027,107.01316943400008 33.080414292000057,107.01756825700005 33.080414292000057, 107.01756825700005 33.077045438000027))'',<br /> 4490),<br /> 0)) = 1报ora-28579在从外部过程代理程序回调时发生网络错误