Hi!
I'd like to bother you with something about updating views. At present,
postgresql7.3��doesn't support update on views.When I look up the source code, I see
that view is implemented with rules. That is when a view is created, a corresponding
��select'��rule is created too. And I see the following code:
#ifdef NOTYET
RuleStmt *replace_rule;
RuleStmt *append_rule;
RuleStmt *delete_rule;
#endif
.. ...
#ifdef NOTYET
replace_rule = FormViewReplaceRule(view, viewParse);
append_rule = FormViewAppendRule(view, viewParse);
delete_rule = FormViewDeleteRule(view, viewParse);
#endif
.. ...
In my eyes, it is not very difficult to realize view update with fill the
above three functions��But I know the developers of postgresql are very learned, now
that they didn't realize view update, maybe it is very difficult. I am a beginner of
postgresql, so with my limited knowlege, maybe I can't realize the difficulity of
doing such a thing.
So I wonder if some of you would like to give me some advice about updating on views
or why it is not realized��what's the difficulty of doing it?
Long for your reply.
Thank you!
Best regards!
����������������
����������������Yours XiaojingLi
����������������[EMAIL PROTECTED]
��������������������2002-11-23
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