Botond Dénes 8c0dd99f7c query: result_merger::get() don't reset last-pos on short-reads and last pages ...

When merging multiple query-results, we use the last-position of the
last result in the combined one as the combined result's last position.
This only works however if said last result was included fully.
Otherwise we have to discard the last-position included with the result
and the pager will use the position of the last row in the combined
result as the last position.
The commit introducing the above logic mistakenly discarded the last
position when the result is a short read or a page is not full. This is
not necessary and even harmful as it can result in an empty combined
result being delivered to the pager, without a last-position.

2022-08-10 06:01:49 +03:00

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