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.steh...@gmail.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 <huangq...@gmail.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
