Peter Geoghegan p...@heroku.com writes:
On Tue, May 6, 2014 at 8:08 PM, Tom Lane t...@sss.pgh.pa.us wrote:
The early-exit code path supposes that JB_ROOT_COUNT is absolutely
reliable as an indicator that there's nothing in the jsonb value.
On the other hand, the realloc logic inside the
On 05/07/2014 06:27 PM, Tom Lane wrote:
I think you're just proving the point that this code is woefully
underdocumented. If there were, somewhere, some comment explaining
what the heck JB_ROOT_COUNT actually counts, maybe I wouldn't be asking
this question. jsonb.h is certainly not divulging
Heikki Linnakangas hlinnakan...@vmware.com writes:
gin_extract_jsonb recursively extracts all the elements, keys and values
of any sub-object too, but JB_ROOT_COUNT only counts the top-level elements.
Got it. So if the top level is empty, we can exit early, but otherwise we
use its length * 2
On Tue, May 6, 2014 at 8:08 PM, Tom Lane t...@sss.pgh.pa.us wrote:
The early-exit code path supposes that JB_ROOT_COUNT is absolutely
reliable as an indicator that there's nothing in the jsonb value.
On the other hand, the realloc logic inside the iteration loop implies
that JB_ROOT_COUNT is
