Hi Wes,
Thanks for the effort. I will add clarifications.
Best,
Liya Fan
On Wed, Sep 4, 2019 at 11:06 AM Wes McKinney wrote:
> I opened https://issues.apache.org/jira/browse/ARROW-6451
>
> On Sun, Sep 1, 2019 at 9:59 PM Fan Liya wrote:
> >
> > Hi Wes,
> >
> > Thanks for the information.
> >
I opened https://issues.apache.org/jira/browse/ARROW-6451
On Sun, Sep 1, 2019 at 9:59 PM Fan Liya wrote:
>
> Hi Wes,
>
> Thanks for the information.
> I agree with you that we had better make this clear in the document, to
> help users avoid unexpected behaviors.
>
> Best,
> Liya Fan
>
> On Sun,
Hi Wes,
Thanks for the information.
I agree with you that we had better make this clear in the document, to
help users avoid unexpected behaviors.
Best,
Liya Fan
On Sun, Sep 1, 2019 at 7:17 AM Wes McKinney wrote:
> Option 3 is the what the columnar specification currently intends, for
> the
Option 3 is the what the columnar specification currently intends, for
the reasons that Jacques cites. In particular, a value can be made
null only by altering the validity bitmap. It might be helpful to add
some language to make clear that the contents "underneath" a null can
be anything. The
Hi Jacques and Ravindra,
Thanks for your valuable feedback.
Please let me talk more about contiguous memory:
For some operations (like memory segment comparison, hash code computation,
etc.), if we we chose option 1 or 2, we can get the result with a single
call, without any reference to the
On Wed, Aug 28, 2019 at 12:32 PM Fan Liya wrote:
> Dear all,
>
> In the discussion of this PR (https://github.com/apache/arrow/pull/5073),
> we are faced with a problem:
>
> Normally, in a VariableWidthVector (e.g. VarCharVector), a null value is
> supposed to take no space in the data buffer.
#3 is the correct behavior and how the code was meant to be written. I
don't see any problems with that pattern. This allows someone to (if they
so decide) to null a value without having to rewrite the data. #3 is also a
consistent
behavior with all other vectors. Null values can use up space but
Dear all,
In the discussion of this PR (https://github.com/apache/arrow/pull/5073),
we are faced with a problem:
Normally, in a VariableWidthVector (e.g. VarCharVector), a null value is
supposed to take no space in the data buffer. In particular, for a null
value, we have
start index == end
