pitrou commented on a change in pull request #8318:
URL: https://github.com/apache/arrow/pull/8318#discussion_r498354560
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File path: cpp/src/parquet/arrow/schema.cc
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@@ -693,10 +693,12 @@ Status ApplyOriginalStorageMetadata(const Field&
origin_field, SchemaField* infe
auto origin_type = origin_field.type();
auto inferred_type = inferred->field->type();
- if (inferred_type->id() == ::arrow::Type::TIMESTAMP) {
+ if (origin_type->id() == ::arrow::Type::TIMESTAMP &&
+ inferred_type->id() == ::arrow::Type::TIMESTAMP) {
// Restore time zone, if any
- const auto& ts_type = static_cast<const
::arrow::TimestampType&>(*inferred_type);
- const auto& ts_origin_type = static_cast<const
::arrow::TimestampType&>(*origin_type);
+ const auto& ts_type = checked_cast<const
::arrow::TimestampType&>(*inferred_type);
+ const auto& ts_origin_type =
+ checked_cast<const ::arrow::TimestampType&>(*origin_type);
Review comment:
Well, it's useful to have a debug mode check, IMHO.
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