Zoltan Boszormenyi írta:
Andrew Dunstan írta:Florian G. Pflug wrote:Advertising
bison -y -d gram.y conflicts: 2 shift/reduceI'ts been quite a time since I last used bison, but as far as I remember, you can tell it to write a rather details log about it's analysis of the grammar. That log should include more detailed information about those conflicts - maybe that helps to figure out their exact cause, and to find a workaround.You can almost always get rid of shift/reduce conflicts by unwinding some of the productions - resist the temptation to factor the grammar. The effect of this is to eliminate places where the parser has to decide between shifting and reducing. (This is why, for example, almost all the "drop foo if exists" variants require separate productions rather than using opt_if_exists.)cheers andrewThanks. This idea solved one of the two shift/reduce conflicts. But the other one can only be solved if I put GENERATED into the reserved_keyword set. But the standard spec says it's unreserved. Now what should I do with it?
What should I do? Send it. :-) Someone more familiar with bison can hopefully fix it... Please, review. Best regards, Zoltán -- ---------------------------------- Zoltán Böszörményi Cybertec Geschwinde & Schönig GmbH http://www.postgresql.at/
psql-serial-40.diff.gz
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
