[GitHub] [orc] wgtmac commented on issue #1430: [C++] DataBuffer Constructor (or a non default constructor) uses reserve instead of resize?

["wgtmac (via GitHub)" <gi...@apache.org>]

wgtmac commented on issue #1430:
URL: https://github.com/apache/orc/issues/1430#issuecomment-1464919055

   `reserve` only allocates the memory but does not call constructor of the objects of the buffer.  This is what `resize` does and will be undefined behavior if not doing so. Could you share your use case or some profiling data (e.g. flame graph) so we can discuss optimization opportunities in detail? @XinyuZeng  


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