>i want to : update virtual_table set field1 = 3 where index = 4; > >create table virtual_table(index int4, field1 int4); > >create table table1 ( ....)inherits(virtual_table); > >create table table2( ....)inherits(virtual_table); > >insert into table1(index, field1) values(4, 0); > >and i want to change the value of field1 > >