OPT_PARAM
- From: LS Cheng <exriscer@xxxxxxxxx>
- To: Oracle Mailinglist <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 24 Nov 2009 08:14:31 +0100
Hi
Does anyone know if opt_param hint works with optimizer_features_enable in
11.1.0.7?
I am testing it and it seems that it gets ignored
enable event 10132
SELECT
/*+ opt_param('optimizer_features_enable', '9.2.0') */
x, y, z
FROM v_lsc
WHERE x = 'S' OR y_date > to_date(:V1, 'MM/DD/YY HH24:MI:SS');
Content of other_xml column
===========================
db_version : 11.1.0.7
parse_schema : SIMO
plan_hash : 2064770634
plan_hash_2 : 1803173905
Peeked Binds
============
Bind variable information
position=1
datatype(code)=1
datatype(string)=VARCHAR2(32)
char set id=31
char format=1
max length=32
value=11/20/09 14:01:27
Outline Data:
/*+
BEGIN_OUTLINE_DATA
IGNORE_OPTIM_EMBEDDED_HINTS
* OPTIMIZER_FEATURES_ENABLE('9.2.0')*
..............
Optimizer state dump:
..............
*optimizer_features_enable = 11.1.0.7*
Although in outline section it sees 9.2.0 optimizer afterwards it still uses
11.1.0.7
Thanks
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