IpcBatchReader.nextBatch
Nullable!ColumnBatch nextBatch() @trustedDecodes the next record batch into a ColumnBatch (one chunk per column; projected fields skip decoding). Returns null at the end or after close.
Nullable!ColumnBatch nextBatch() @trustedDecodes the next record batch into a ColumnBatch (one chunk per column; projected fields skip decoding). Returns null at the end or after close.