Re: [HACKERS] JSONB - JSONB operator feature request

On Tue, Jul 18, 2017 at 01:36:32PM +0200, david.turon@linuxbox.cz wrote:
> Hi,
> 
> some users and me used hstore - hstore for example storing only changed 
> rows in trigger like:
> 
> hstore(NEW) - hstore(OLD)
> 
> There isn't same operator/function in JSON/JSONB. We can only remove keys 
> from JSONB, but not equal key-value pairs. Is there any chance to have 
> same feature with JSON/JSONB in postgres core?

What would - mean precisely for JSON[B]?

For example, what would you expect

SELECT '{"a": 1, "b": {"c": 2}}'::JSONB - '{"b": 1, "b": {"c": 3}}'::JSONB

to yield?

Best,
David.
-- 
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
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