jorisvandenbossche commented on code in PR #36846:
URL: https://github.com/apache/arrow/pull/36846#discussion_r1336834165
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cpp/src/arrow/table.h:
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@@ -333,4 +342,29 @@ Result<std::shared_ptr<Table>> PromoteTableToSchema(
const std::shared_ptr<Table>& table, const std::shared_ptr<Schema>& schema,
MemoryPool* pool = default_memory_pool());
+/// \brief Promotes a table to conform to the given schema.
+///
+/// If a field in the schema does not have a corresponding column in
+/// the table, a column of nulls will be added to the resulting table.
+/// If the corresponding column is of type Null, it will be promoted
+/// to the type specified by schema, with null values filled. If Arrow
+/// was built with ARROW_COMPUTE, then the column will be casted to
Review Comment:
same here
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