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https://issues.apache.org/jira/browse/ARROW-2411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429637#comment-16429637
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ASF GitHub Bot commented on ARROW-2411:
---------------------------------------
kou commented on a change in pull request #1852: ARROW-2411: [C++] Add
StringBuilder::Append(const char **values)
URL: https://github.com/apache/arrow/pull/1852#discussion_r179936398
##########
File path: cpp/src/arrow/builder.h
##########
@@ -720,6 +720,16 @@ class ARROW_EXPORT StringBuilder : public BinaryBuilder {
Status Append(const std::vector<std::string>& values,
const uint8_t* valid_bytes = NULLPTR);
+
+ /// \brief Append a sequence of C strings in one shot
+ /// \param[in] values a contiguous C array of C strings
+ /// \param[in] length the number of values to append
+ /// \param[in] valid_bytes an optional sequence of bytes where non-zero
+ /// indicates a valid (non-null) value
+ /// \return Status
+ Status Append(const char** values,
Review comment:
Umm. We already use `Append()` for scalar append and vector append in other
builders.
If we use separated names for append variations, it may be better that we
also change the current vector append methods to `AppendValues()` or something
for consistency.
@xhochy what do you think about this?
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> [C++] Add method to append batches of null-terminated strings to StringBuilder
> ------------------------------------------------------------------------------
>
> Key: ARROW-2411
> URL: https://issues.apache.org/jira/browse/ARROW-2411
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, GLib
> Reporter: Uwe L. Korn
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> We should add a method {{StringBuilder::AppendCStrings(const char** values,
> const uint8_t* valid_bytes = NULLPTR)}} to the {{StringBuilder}} class to
> have fast inserts for these strings. See
> https://github.com/apache/arrow/pull/1845/files for a use case.
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