Github user cramja commented on the issue:
https://github.com/apache/incubator-quickstep/pull/100
@navsan love the comments, very thorough.
I updated the header of this PR to include benchmarks/testing info and will
keep this in mind in the future.
**Changes queued for this PR**
* getting rid of TypedValue
* moving some of the computations out of the inner loop and keeping a
leaner set of running state variables
* moving to a per-column info struct rather than a number of bitvectors and
vector<int>s
I'm going to address these in an addendum commit. I think your suggestions
are great.
**Different PR**
* getting rid of occupancy_bitmap_
* moving the null_bitmap into the header as a single bitmap for the entire
tuple storage subblock.
I think these are valid issues (comments above for specifics) but that they
can be the subject of another commit/PR in the pursuit of more concise PRs.
**Another PR**
> Can you coalesce writes for contiguous columns in input/output? This
helps speed up the common case of materialized join results where (almost)
everything gets copied out anyway.
> Can you also add support for partialBulkInsert functions? See the commits
in my branch for reference. It'll help us improve the join result
materialization cost, as well as a few other operations.
Both these points can be addressed but in a separate PR.
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