Re: Can t get INSERT /*+ APPEND */ to indicate direct load in execution plan
- From: Randolf Geist <info@xxxxxxxxxxxxxxxxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 02 Nov 2011 17:09:42 +0100
The direct-path insert restriction with the non-unique index used to be there
up to 10.2. It's no longer there in 11.1 and 11.2, however the change
introduced another subtle (and nasty) questionable behaviour, see here:
http://oracle-randolf.blogspot.com/2008/11/primary-key-unique-constraints-enforced.html
It looks like this potential bug hasn't been addressed yet.
Randolf
> Mark,
>
> Is your primary key protected by a non-unique constraint ? That would disable
> direct path load. Also, although you say you have no enabled FKs, the output
> you've shown does have an FK in ENABLE NOVALIDATE mode.
>
> Regards
> Jonathan Lewis
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