Hi All,
I've 3 tables table x,y,z
pk of x is (col_1,col_2),pk of y is (col_1,col_2,col_4,col_5),pk of z is
(col_1,col_2)
where clause is :
where x.col_1 = y.col_1
and x.col_2 = y.col_2
and x.col_1 = z.col_1
and x.col_2 = z.col_2
and y.col_1 = z.col_1
and y.col_2 = z.col_2
and x.col_3 in ('val1','val2','val3')
and.....
..
Explain plan shows that there is a FTS of table z .
what can be the reason for this and how to prevent this.
Thanks
Manoj
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