Fix using limit=0 and details=on to get only the count of elements (prelanding)

[fgalan]

Continues the work in PR #3994 . Issue #1492

Note that just after creating the PR (at commit c20bd31) the diff is +707 -62 deletions, exactly as in the original PR.

CC: @Anjali-NEC . Please pay attention to any further comment or modification I'll do in this PR.

[fgalan]

I think I finally found the reason for this "JSON Parse Error" :)

payload='NO PAYLOAD NECESSARY'

Let's try to modify this tests with a proper queryContext JSON request payload...

[fgalan]

Fixed in ae956ec

[fgalan]

I have simplified the code so for instance instead of

if (limit != 0)
{
   while ((limit != 0) && (cursor.next(&r, &errType, &nextErr)))
   ...

we have a more compact equivalent option:

while ((limit != 0) && (cursor.next(&r, &errType, &nextErr)))

to avoid unnecessary re-indentation of code blocks.

[fgalan]

Please @Anjali-NEC have a look to the final state of this PR and if you find it ok provide LGTM so we can merge it.

[mapedraza]

LGTM

[Anjali-NEC]

Please @Anjali-NEC have a look to the final state of this PR and if you find it ok provide LGTM so we can merge it.

LGTM