Hi Chuck. Yes, I'm using 2-3 week old Wonder and there's no IN qualifier in play. I don't think the Oracle optimizer likes that either although I'll definitely give it a trial.
I'm still trying to get /*+ rule */ to work. I think that's my best bet. Jon On 3/22/11 5:47 PM, Chuck Hill wrote:
Are you using Wonder? I thought that Wonder would collapse these into an IN. Oracle might be more inclined to optimize that. It might be that the Wonder qualifier support is not used for inheritance. You might try running the SQL for that and see if the Oracle optimizer will play nice. You could try an ERXInQualifier, but I think that EOF is still going to want the restricting qualifiers. Chuck On Mar 22, 2011, at 4:31 PM, Jon Nolan wrote:I have a fairly involved EO inheritance tree that works beautifully in every way but one. Here's a quick example illustrating the structure I'm using: Human North American American Canadian Mexican European German Italian Spaniard Asian Korean Laotian etc. You get the idea. So if I utilize European.fetchEuropeans(...) a qualifier is generated along the lines of HUMAN_TYPE = German or HUMAN_TYPE = Italian or HUMAN_TYPE = Spaniard. This would be fine except for the Oracle optimizer deciding not to use the HUMAN_TYPE_IDX index. I've tried using hints but (a) it's difficult to get right for a query generated by a ERXBatchingDisplayGroup and (b) the JDBC adaptor disconnects me when I try. There is another qualifier clause which happens to make it so that, in the European example, all the returned humans will indeed be German, Italian or Spaniard. Is there any way to simply discard the OR'd HUMAN_TYPE qualifier? Any other suggestions? Do I have something wrong in my model in the first place? Thanks, Jon _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net
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