Alexander Root comments

Repositories
Issues
Comments

Results 63 comments of


                                            Alexander Root

Linear scan filters are much slower than expected

The custom code returns a row store of the result (a std::vector of tuples of the selected type). For this example, it just selects a `VariableText` class, which is a...

Linear scan filters are much slower than expected

> Profiling this it seems most of the time is going into the `extract(month from l_shipdate)` function - what does your implementation there look like? Date is stored as 32...

Linear scan filters are much slower than expected

> @rootjalex can you please try building DuckDB on the [`feature` branch](https://github.com/duckdb/duckdb/tree/feature) and see whether it improved the performance of the queries in your issue? Runtime was definitely improved (single...