updates for arrow 0.15.0

Author: jeroen

README.md

@@ -1,4 +1,4 @@
-# Apache Arrow 0.14.1
+# Apache Arrow 0.15.0
 
 Backports for the R legacy toolchain [lib-4.9.3](lib-4.9.3) built with [rtools-backports](https://github.com/r-windows/rtools-backports/blob/master/mingw-w64-arrow/PKGBUILD).
 
@@ -18,10 +18,10 @@ PKG_LIBS = \
 	-ldouble-conversion -lsnappy -lz -lws2_32
 ```
 
-The easiest way to test this is using the R package from the [arrow-r-dev](https://github.com/jeroen/arrow-r-dev) repository:
+To test this make sure you install the arrow package from a release tag:
 
 ```r
-remotes::install_github("jeroen/arrow-r-dev")
+remotes::install_github("apache/arrow/[email protected]")
 ```
 
-The upstream R bindings require the libarrow verion from the master branch so it is typically broken.
+To install R package from the arrow master branch you also would need to rebuild the master branch arrow C++ library from source.

include/arrow/allocator.h

@@ -21,6 +21,7 @@
 #include <algorithm>
 #include <cstddef>
 #include <memory>
+#include <string>
 #include <utility>
 
 #include "arrow/memory_pool.h"
@@ -131,6 +132,8 @@ class STLMemoryPool : public MemoryPool {
 
   int64_t max_memory() const override { return stats_.max_memory(); }
 
+  std::string backend_name() const override { return "stl"; }
+
  private:
   Allocator alloc_;
   internal::MemoryPoolStats stats_;

include/arrow/api.h

@@ -21,13 +21,15 @@
 #define ARROW_API_H
 
 #include "arrow/array.h"                    // IYWU pragma: export
+#include "arrow/array/concatenate.h"        // IYWU pragma: export
 #include "arrow/buffer.h"                   // IYWU pragma: export
 #include "arrow/builder.h"                  // IYWU pragma: export
 #include "arrow/compare.h"                  // IYWU pragma: export
 #include "arrow/extension_type.h"           // IYWU pragma: export
 #include "arrow/memory_pool.h"              // IYWU pragma: export
 #include "arrow/pretty_print.h"             // IYWU pragma: export
 #include "arrow/record_batch.h"             // IYWU pragma: export
+#include "arrow/result.h"                   // IYWU pragma: export
 #include "arrow/status.h"                   // IYWU pragma: export
 #include "arrow/table.h"                    // IYWU pragma: export
 #include "arrow/table_builder.h"            // IYWU pragma: export