Thread: Re: Cast of numeric()

Re: Cast of numeric()

From
Bruce Momjian
Date:
> > OK, this is making me rethink my suggestion in the book of using type()
> > to do typecasts.  Seems I should recommend CAST (val AS type), as wordy
> > as it is, or maybe val::type?
> 
> CAST(val AS type) is defined in SQL92. istm that the others are
> available at the whim of our current implementation, since when push
> comes to shove we might have to choose between having one of our
> non-standard mechanisms or having some other new features.

OK, I am going to use CAST everywhere, except in one place where I have
nested casts, which is just too hard to read, so I will use :: and
mention the CAST section.

> 
> An example is SQL3 enumerated types, which use the double-colon
> notation, but with value and type reversed from our syntax :(
> 
>                      - Thomas
> 
> -- 
> Thomas Lockhart                lockhart@alumni.caltech.edu
> South Pasadena, California
> 


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