defined第二个参数值用SHARED,或者用objs函数,代码如下:
stName="mtopst" if (stName in objs(true).name) dropStreamTable(stName) colnames = [`ts, `minID,`maxID,`err ] coltypes = [TIMESTAMP, INT, INT, STRING] st1= streamTable(10000:0, colnames, coltypes) enableTableShareAndPersistence(st1,stName, false, true, 1000,100,0);