GH-48202: [C++][Parquet] Fix encoder & decoder logic to enable Parque… #48203
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…Parquet DB support on s390x
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…t DB support on s390x
Rationale for this change
This PR is intended to enable Parquet DB support on Big-endian (s390x) systems. The fix in this PR fixes the encoder & decoder logic. Encoders and Decoders are the main part of most of the parquet & arrow-parquet testcases and needs fix for variaous encoding & decoding types.
What changes are included in this PR?
The fix includes changes to following files:
cpp/src/parquet/decoder.cc
cpp/src/parquet/encoder.cc
Are these changes tested?
Yes. The changes are tested on s390x arch to make sure things are working fine. The fix is also tested on x86 arch, to make sure there is no new regression introduced.
Are there any user-facing changes?
No
GitHub main Issue link: #48151