Re: [HACKERS] New CORRESPONDING clause design

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От Pavel Stehule
Тема Re: [HACKERS] New CORRESPONDING clause design
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Msg-id CAFj8pRCOaqwkD+MXpqH1QN48+U_hFxKauhhVGNHOB=zfhCcOoQ@mail.gmail.com
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Ответ на Re: [HACKERS] New CORRESPONDING clause design  (Surafel Temesgen <surafel3000@gmail.com>)
Ответы Re: [HACKERS] New CORRESPONDING clause design
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2017-03-13 14:13 GMT+01:00 Surafel Temesgen <surafel3000@gmail.com>:


On Sat, Mar 11, 2017 at 9:01 AM, Pavel Stehule <pavel.stehule@gmail.com> wrote:


I am sending minor update - cleaning formatting and white spaces, error messages + few more tests
 
Thank you very much for your help
  

Maybe correspondingClause needs own node type with attached location. Then context can be much better positioned.
 

I think we can solve it by using your option or using expr_list for corresponding column and check the syntax manually.

In my opinion, the last option eliminate the introduction of new node for only the sake of error position.


What did you think about the second option?


I don't like it too much - using expr only for location is too misuse. 

Some errors are related to just CORRESPONDING without any columns. So using expr doesn't help here. So parse node CORRESPONDING can solve both issues.  

Regards

Pavel 


Regards 

Surafel




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