Re: Re: logical changeset generation v3 - comparison to Postgres-R change set format

On 01/13/2013 12:30 PM, Hannu Krosing wrote:
> On 01/13/2013 10:49 AM, Hannu Krosing wrote:
>> Does this hint that postgreSQL also needs an sameness operator
>> ( "is" or "===" in same languages).
> 
> How do people feel about adding a real sameness operator ?

We'd need to define what "sameness" means. If this goes toward "exact
match in binary representation", this gets a thumbs-up from me.

As a first step in that direction, I'd see adjusting send() and recv()
functions to use a portable binary format. A "sameness" operator could
then be implemented by simply comparing two value's send() outputs.

Regards

Markus Wanner