Allow block-based join algorithm to work with undef values

RobinTF commented 1 week ago

Extend the block-based merge-join algorithm, s.t. it can support undefined inputs. This currently only works for single columns joins where the undefined values are at the beginning of each input and (as there is only one join column) compatible with every other input element. This is an important precondition for a lazy single-column join for sorted inputs.

codecov[bot] commented 1 week ago

Codecov Report

Attention: Patch coverage is 94.47514% with 10 lines in your changes missing coverage. Please review.

Project coverage is 89.26%. Comparing base (77ac964) to head (6142253). Report is 5 commits behind head on master.

Files with missing lines	Patch %	Lines
src/util/JoinAlgorithms/JoinAlgorithms.h	94.38%	1 Missing and 9 partials :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1616 +/- ## ========================================== + Coverage 89.24% 89.26% +0.01% ========================================== Files 374 374 Lines 35315 35608 +293 Branches 3988 4019 +31 ========================================== + Hits 31518 31786 +268 - Misses 2503 2521 +18 - Partials 1294 1301 +7 ```

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