Greg Stark <gsst...@mit.edu> writes:
> On Thu, Oct 28, 2010 at 5:20 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
>> I experimented a bit with mysql's behavior, and it seems that (at least
>> in 5.1.51) what they do is treat "1and" or "2or" as if it were an
>> identifier. They're definitely not throwing an error, at least not on
> I guess the eleant question is what the lexical elements section of
> the standard says about identifiers. It pretty clearly declares that
> they can't start with digits:
Yeah. The key point IMO is that this *input* is not spec-compliant.
So implementations can either throw an error, or define their own
spec extension as to how to interpret it. I find mysql's behavior
interesting mostly because it shows that throwing an error isn't
necessarily common practice. Anybody want to try Oracle, DB2, etc?
regards, tom lane
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