Github user xndai commented on a diff in the pull request:
https://github.com/apache/orc/pull/151#discussion_r138235902
--- Diff: c++/include/orc/Reader.hh ---
@@ -288,6 +288,18 @@ namespace orc {
virtual uint64_t getCompressionSize() const = 0;
/**
+ * Get ID of writer that generated the file.
+ * @return UNKNOWN_WRITER if the writer ID is undefined
+ */
+ virtual WriterId getWriterId() const = 0;
+
+ /**
+ * Get the writer id value when getWriterId() returns an unknown
writer.
+ * @return the integer value of the writer ID.
+ */
+ virtual int getUnknownWriterIdValue() const = 0;
--- End diff --
Sounds good. I will update it. Thanks.
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