Re: A parsing question

["David G. Johnston" <david.g.johnston@xxxxxxxxx>]

On Wed, Jun 3, 2020 at 3:41 PM Michael Nolan <htfoot@xxxxxxxxx> wrote:

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 '>-'

From the syntax section of the documentation:

A multiple-character operator name cannot end in + or -, unless the name also contains at least one of these characters:

~ ! @ # % ^ & | ` ?

For example, @- is an allowed operator name, but *- is not. This restriction allows PostgreSQL to parse SQL-compliant queries without requiring spaces between tokens.

David J.