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Troels NielsenAntoine Pitrou
a17717fa528
Troels Nielsen authored and Antoine Pitrou committed 0b4fa2a2bf8
ARROW-9969: [C++] Fix RecordBatchBuilder with dictionary types

Some types, such as some dictionary types, can not be fully determined
before a RecordBatch has been built.

Ensure that the RecordBatch schema contains the correct types, when
the RecordBatchBuilder has finished building the RecordBatch.

Closes #8178 from troels/recordbatch-schema-correct-types

Authored-by: Troels Nielsen <bn.troels@gmail.com>
Signed-off-by: Antoine Pitrou <antoine@python.org>