rizaon commented on a change in pull request #990:
URL: https://github.com/apache/orc/pull/990#discussion_r778486717
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File path: c++/include/orc/Reader.hh
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@@ -149,6 +149,28 @@ namespace orc {
*/
RowReaderOptions& includeTypes(const std::list<uint64_t>& types);
+ /**
+ * A map of <typeId, set<ReadIntent>> used as a parameter in
+ * RowReaderOptions::includeTypesAndIntents.
+ */
+ typedef std::map<uint64_t, std::set<ReadIntent>> TypeReadIntents;
+
+ /**
+ * Selects which type ids to read and specific ReadIntents for each
+ * type id. The root type is always 0 and the rest of the types are
+ * labeled in a preorder traversal of the tree. The parent types are
+ * automatically selected, but the children are not. If a type id is
+ * selected with an empty ReadIntent set, the empty set will be replaced
+ * by {ReadIntent_DATA}.
Review comment:
Now we default to ArrayReadIntent_ALL
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