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mwish authored and GitHub committed 031497ddab5
GH-43143: [C++][Parquet] Default initialize some parquet metadata variables (#43144) ### Rationale for this change Default initialize some parquet metadata variables ### What changes are included in this PR? Default initialize some parquet metadata variables ### Are these changes tested? Covered by existing ### Are there any user-facing changes? no * GitHub Issue: #43143 Authored-by: mwish <maplewish117@gmail.com> Signed-off-by: Sutou Kouhei <kou@clear-code.com>