Re: A parsing question

Michael Nolan <htfoot@gmail.com> writes:
> Recently I was typing in a query in PG 10.4.
> What I MEANT to type was:   Where xyz >= 2400

> What I actually typed was:  Where xyz >- 2400

> The latter was interpreted as 'where xyz > -2400', but I'm wondering if it
> shouldn't have thrown an error on an unrecognized operator '>-'

No, we do it that way intentionally, because the SQL standard requires us
to parse such cases in this way.  The CREATE OPERATOR man page has some
details about what is and isn't a valid operator name ... and '>-' isn't
one.  (The rules there probably look a bit bizarre, but the intention
is to ensure that operators found in the SQL spec can be parsed without
requiring spaces between them.)

            regards, tom lane