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                                            Thijs

[Aggregate] DISTINCT aggregates without GROUP BY are now executed in parallel

This PR takes the first step in addressing issue #4275 Previously the regular (not GROUP BY) case was being handled by the `physical_hash_aggregate` operator through a special "hack". Now this...

Vector::SetValue not always casting when it should

#### What happens? When determining whether or not to cast, SetValue only considers PhysicalType. This can be problematic in case there is additional type_info present on the LogicalType. (For a...

[PipelineExecutor] aggregate(DISTINCT expr) not able to be parallelized

### What happens? As the title explains, when an aggregate is called with the DISTINCT flag on an expression, this can not be run in parallel (multi-threaded). Or more specifically,...

INTERVAL type missing in ListVector::Search

#### What happens? Attempting to do a look up in a MAP using an INTERVAL value causes an exception to be thrown. (within ListVector::Search there is no case to handle...

NULL as SRUCT key throws Parser Exception

#### What happens? When creating a struct with NULL as key, the parser throws an exception. For clarity it would be preferable if this was thrown further down the line,...

TIME Value result -> Pandas Dataframe does not return datetime.time

#### What happens? When the result is of type TIME, exporting this result to a dataframe converts the value to a string, instead of an object of type `datetime.time` ```py...

Dask Dataframe does not support Pandas dtype 'Float32'

```py pd_df = pd.DataFrame({ 'float32': pd.Series([None, 1, 4294967295], dtype="Float32"), 'float64': pd.Series([None, 1, 18446744073709551615], dtype="Float64")} ) dd_df = dd.from_pandas(pd_df, npartitions=10) print(dd_df['float32'].values) # This last line caused the crash ``` **What happened**:...

array

tests

needs attention

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