Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/src/arrow/format/File.fbs b/src/arrow/format/File.fbs
new file mode 100644
index 000000000..906d494f2
--- /dev/null
+++ b/src/arrow/format/File.fbs
@@ -0,0 +1,52 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+include "Schema.fbs";
+
+namespace org.apache.arrow.flatbuf;
+
+/// ----------------------------------------------------------------------
+/// Arrow File metadata
+///
+
+table Footer {
+  version: org.apache.arrow.flatbuf.MetadataVersion;
+
+  schema: org.apache.arrow.flatbuf.Schema;
+
+  dictionaries: [ Block ];
+
+  recordBatches: [ Block ];
+
+  /// User-defined metadata
+  custom_metadata: [ KeyValue ];
+}
+
+struct Block {
+
+  /// Index to the start of the RecordBlock (note this is past the Message header)
+  offset: long;
+
+  /// Length of the metadata
+  metaDataLength: int;
+
+  /// Length of the data (this is aligned so there can be a gap between this and
+  /// the metadata).
+  bodyLength: long;
+}
+
+root_type Footer;