[PR] fix(parquet/variant): reject truncated scalar values [arrow-go]

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

fallintoplace opened a new pull request, #1017:
URL: https://github.com/apache/arrow-go/pull/1017

   ### Rationale for this change\n\nNewWithMetadata only checks that a variant value is non-empty. Truncated or unknown scalar encodings can therefore be accepted and later panic or read invalid data when their type or value is accessed.\n\n### What changes are included in this PR?\n\n* Validate the encoded width of fixed-size primitive values and short strings.\n* Validate binary and string length prefixes and their payload sizes.\n* Reject unknown primitive type codes while keeping compound values lazily decoded.\n\n### Are these changes tested?\n\nYes. The tests cover unknown primitive types, truncated fixed-width values, truncated binary prefixes and payloads, and truncated short strings. The parquet/variant and parquet/pqarrow packages pass, including the assertion build for parquet/variant.


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Re: [PR] fix(parquet/variant): reject truncated scalar values [arrow-go]

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

zeroshade merged PR #1017:
URL: https://github.com/apache/arrow-go/pull/1017


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