Re: NULL = col - Mailing list pgsql-hackers

From Thomas Lockhart
Subject Re: NULL = col
Date
Msg-id 3737A2B6.A3F149C2@alumni.caltech.edu
Whole thread Raw
In response to NULL = col  (Bruce Momjian <maillist@candle.pha.pa.us>)
List pgsql-hackers
> Yes, that is true.  There are several cases where we check just for =
> NULL and not NULL = in the internals, not the grammar.

That part is probably OK, since both statements are internalized to be
the same.

> > There is currently a single shift/reduce conflict in  gram.y, and I'm
> > suprised to find that it is *not* due to the "NULL_P '=' a_expr" line.
> Yep.  I got that working with precidence for NULL, I think.

Hmm.

> Any chance of making your signature Thomas, to not confuse it with Tom
> Lane?

I'm trying to, but it's *so* many letters to type...
                       - Tom^H^H^Hhomas

-- 
Thomas Lockhart                lockhart@alumni.caltech.edu
South Pasadena, California


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