Insert

When inserting, we insert one pdf for correlated attributes. For example, in the table trucks, xpos and ypos are correlated. So, when inserting, we insert a 2D pdf for xpos, and null for ypos.
INSERT INTO trucks VALUES ('1', 'prod(norm(0,1), norm(0,1))', NULL, 'hist( {5.1 , 5.3} : 0.2 , 0.3 )');

Rohit Jain 2011-08-02