| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: add modulo (%) operator to pgbench |
| Date: | 2014-09-11 16:58:59 |
| Message-ID: | CA+Tgmoa2vv_r9tLYQEpBw3xepxfZL04mz7F=kHYof8DYe5sYzg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Thu, Sep 11, 2014 at 2:47 AM, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> wrote:
> Ok. I do agree that an expression syntax would be great!
>
> However, that would not diminish nor change much the amount and kind of code
> necessary to add an operator or a function
That's not really true. You can't really add abs(x) or hash(x) right
now because the current code only supports this syntax:
\set varname operand1 [ operator operand2 ]
There's no way to add support for a unary operator with that syntax.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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