From: | HuangQi <huangqiyx(at)gmail(dot)com> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Hacking gram.y Error syntax error at or near "MERGEJOIN" |
Date: | 2011-06-02 07:54:17 |
Message-ID: | BANLkTin6UDBsp0icqDx=SWM2mXbUzmGt1g@mail.gmail.com |
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Lists: | pgsql-hackers |
Yes, I've also added mergejoin to kwlist.h as unreserved_keyword. In order
to build AST, I also keep a new node struct in planoperators.h and a new
node tag inside nodes.h.
On 2 June 2011 15:49, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> Hello
>
> you should to add new keywords to
> postgresql/src/include/parser/kwlist.h (depends on pg version)
>
> attention - keywords must be in alphabet order
>
> Regards
>
> Pavel Stehule
>
> 2011/6/2 HuangQi <huangqiyx(at)gmail(dot)com>:
> > Hi,
> > I'm doing a hacking project which hacks the gram.y file and some
> other
> > so that postgres can execute some query plan language to run a particular
> > plan. I did some modifications and try run it. It compiled and installed
> > successfully. But when I was trying to run a MergeJoin operation with
> > keyword MERGEJOIN, it says "ERROR: syntax error at or near 'MERGEJOIN'".
> It
> > seems postgres didn't recognize this keyword. Is it caused by any error
> > inside gram.y? Or how can I trace this error?
> >
> > --
> > Best Regards
> > Huang Qi Victor
> >
>
--
Best Regards
Huang Qi Victor
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