Error using dbms_stats.drop_extended_stats

Question

Hi!
I have the following problem:
I want to drop extended stats and i get the following error:
SQL> begin
2 dbms_stats.drop_extended_stats (
3 ownname => 'ORAP'
4 ,tabname => 'TDORGEH'
5 ,extension => '(O2_KOE||''*'')'
6 );
7 end;
8 /
begin
FEHLER in Zeile 1:
ORA-00001: Unique Constraint (SYS.I_WRI$_OPTSTAT_HH_OBJ_ICOL_ST) verletzt
ORA-06512: in "SYS.DBMS_STATS", Zeile 8443
ORA-06512: in "SYS.DBMS_STATS", Zeile 8497
ORA-06512: in "SYS.DBMS_STATS", Zeile 31747
ORA-06512: in Zeile 2
SQL> SELECT extension_name, extension
2 FROM dba_stat_extensions
3 WHERE table_name = 'TDORGEH';
EXTENSION_NAME EXTENSION
SYS_STUU82KTNIFD_P94KDKJ9#0$08 ("O2_KOE"||'*')
SYS_STUH6U9E_VV_9BVM9I3NNRX#8S ("O3_KOE"||'*')
SYS_STUCUZFT$CCNA7ZD6R08R3T660 ("O4_KOE"||'*')
SYS_STUCSINP1TWGAB#R_V3$XR72E7 ("O5_KOE"||'*')
SYS_STUFD58RVB7F0J1IOL2Q#Z$_VB ("O6_KOE"||'*')
SYS_STU#84ID#J#21ML9$7ZN#HQ7$Q ("O7_KOE"||'*')
SYS_STUCMDCY97QZOEH7TEIAB43GUX ("O8_KOE"||'*')
SYS_STUL3EYD$4V756XR5TCCV7KP94 ("O9_KOE"||'*')
SYS_STUWBXP9BM7ZXAR$JL9C6XVT7B ("O10_KOE"||'*')
9 Zeilen ausgewõhlt.
What is the problem?

Answer 1

Hi,
While going through the link, it seems that METHOD_OPT => 'FOR COLUMNS SIZE AUTO' is obsolete in Oracle 11g and I will have to use METHOD_OPT => 'FOR ALL COLUMNS SIZE AUTO' instead of that. But the option METHOD_OPT => 'FOR COLUMNS SIZE AUTO' used to take just 5 minutes to complete while METHOD_OPT => 'FOR ALL COLUMNS SIZE AUTO' is taking 1 hour.
I want it to take time (5-6 minutes) which the original METHOD_OPT => 'FOR COLUMNS SIZE AUTO' was taking.