From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Mark Butler <butlerm(at)middle(dot)net> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Yacc / Bison difficulties |
Date: | 2001-04-12 03:30:51 |
Message-ID: | 200104120330.XAA29244@candle.pha.pa.us |
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Lists: | pgsql-hackers |
>
> I was trying to make a minor change today to the gram.y file to make
> PostgreSQL recognize "DOUBLE" as a data type the way DB2 does. I ran into
> reduce / reduce conflicts using both of the methods I tried.
>
> Having fought extensively with Bison before on a SQL oriented language
> translation project, I am amazed that you were able to get a grammar as
> complex as PostgreSQL to work without major difficulty.
>
> I was wondering about what the sense of the list would be to someday accepting
> a rewrite using a hand-coded LL(k) recursive descent parser. Anyone?
Interesting. What advantages would there be?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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