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https://issues.apache.org/jira/browse/ARROW-2328?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429306#comment-16429306
]
ASF GitHub Bot commented on ARROW-2328:
---------------------------------------
Adriandorr commented on a change in pull request #1784: ARROW-2328: [C++] Fixed
and unit tested feather writing with slice
URL: https://github.com/apache/arrow/pull/1784#discussion_r179914007
##########
File path: cpp/src/arrow/ipc/test-common.h
##########
@@ -244,18 +246,22 @@ Status
MakeStringTypesRecordBatch(std::shared_ptr<RecordBatch>* out) {
// Quirk with RETURN_NOT_OK macro and templated functions
{
- auto s = MakeRandomBinaryArray<StringBuilder, char>(length, true, pool,
&a0);
+ auto s = MakeRandomBinaryArray<StringBuilder, char>(length, with_nulls,
pool, &a0);
RETURN_NOT_OK(s);
}
{
- auto s = MakeRandomBinaryArray<BinaryBuilder, uint8_t>(length, true, pool,
&a1);
+ auto s = MakeRandomBinaryArray<BinaryBuilder, uint8_t>(length, with_nulls,
pool, &a1);
RETURN_NOT_OK(s);
}
*out = RecordBatch::Make(schema, length, {a0, a1});
return Status::OK();
}
+Status MakeStringTypesRecordBatchWithoutNulls(std::shared_ptr<RecordBatch>*
out) {
Review comment:
Oops.. I'll rename it.
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> Writing a slice with feather ignores the offset
> -----------------------------------------------
>
> Key: ARROW-2328
> URL: https://issues.apache.org/jira/browse/ARROW-2328
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++
> Affects Versions: 0.8.0
> Reporter: Adrian
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> Writing a slice from row n of length m of an array to feather would write the
> first m rows, instead of the rows starting at n.
> The null bitmap also ends up misaligned. Also tested and fixed in the pull
> request below.
> I've created a pull request with tests and fix here:
> [Pullrequest#1766|https://github.com/apache/arrow/pull/1766]
>
>
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