unique constraint not working
831564Jan 18 2013 — edited Jan 19 2013Hi,
I originally had a unique constraint on a table on columns say C1,C2,C3. Later I added a 4th column C4. I can see that the 4th column is part of the same index in all_cons_columns.r
But, when I try to insert row with same value of C1,C2,C3 but different C4 it gives me the same Unique key error even though the value I am entering for C4 is unique for that table. What could cause this?