Tom-Newton commented on code in PR #36627:
URL: https://github.com/apache/arrow/pull/36627#discussion_r1415500610
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cpp/src/arrow/io/caching.h:
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@@ -41,7 +41,12 @@ struct ARROW_EXPORT CacheOptions {
/// combining two consecutive ranges would produce a range of a
/// size greater than this, they are not combined
int64_t range_size_limit;
- /// \brief A lazy cache does not perform any I/O until requested.
+ /// \brief A lazy cache does not perform any I/O until requested.
+ /// lazy = false: request all byte ranges when PreBuffer or WillNeed is
called.
+ /// lazy = True, prefetch_limit = 0: request merged byte ranges when the
reader needs
+ /// only after the reader needs them.
Review Comment:
Oops
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