We have a 3rd party application for which indexes are built with
nls_sort=punctuation on some of the columns. From SQL Plus a simple select on
the column is using a full table scan. With a hint, it uses a full scan of the
index. I presume the problem is the nls_sort. Example:
U
N prefix
INDEX_NAME OWNER Q length COLUMN_POSITION COLUMN_NAME COLUMN_EXPRESSION
------------------------------ --------- - ---------- ---------------
------------------------------ --------------------
EMPLOYEE_IDX1 xxxxxx Y 1 SYS_NC00042$ NLSSORT("EMPLOYEE_ID
",'nls_sort=''PUNCTU
ATION''')
Can someone tell me why?
